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Grundig 5010 5010 - en

Grundig 5010 – en

Grundig 5010

Grundig 5010

The Grundig 5010 is the most powerful monaural device ever built by this brand.
Grundig used to produce different classes of devices. Those in the 1xxx series are the cheapest, those in the 2xxx and 3xxx series are middle class, those in the 4xxx and 5xxx series are high class.
Clearly, the 5010 belongs to the higher class series, and it shows.
The electronic circuit of the 5010 is the most elaborate one could imagine in a commercial device built in 1952. The output stage consists of a pair of powerful EL12 push-pulls. No other manufacturer has used of these expensive tubes in a couple.
The output transformers are two, separate, one for the bass and one for the mid-high.
The first is equipped with a double secondary winding, one for the mid-woofer and one for the feedback circuit.
The mid-high transformer is also equipped with a double secondary winding, one for the cone mid-tweeter and one for the electrostatic tweeter.
The crossover consist of capacitors and coil networks. Really remarkable.
The tone controls are applied on the feedback network, further reducing the distortion, but risking instability when the potentiometer are in their extreme positions.
The Push/Pull phase reversal is provided by a dual triode ECC40, where each section drives one of the two EL12s.
The preamplifier is composed of the triode of an EABC80.
The power supply filter consists of a Pi filter of capacitor and inductor.

The FM antenna circuit consists of an EF80 pentode and the local oscillator consists of an EC92 triode.
As it is the only one, the variable capacitor is composed of many sections, for the AM and FM bands.


The tracks chosen for the test are only two. They are quite long as they have not been cut, they have been kept in all their duration. This is because they are both tracks that develop in different ways, alternating moments of pianissimo with areas of big explosion. In the case of the Overture 1812 this last statement must be taken literally.

Binker and Moses have recently emerged in the London jazz scene in the last few years and have the great merit of having aroused in young people an authentic interest in this musical genre, often followed by a more mature audience.
The song “Fete By The River” was recorded live at the Total Refreshment Center in London on June 26th 2017. This excellent recording recreates all the freshness and warmth that are typical of the duo's performances. The video, which is very well done, is also on Youtube, and it is worth seeing.
Drummer Moses Boyd can keep two different rhythms simultaneously, as if there were two drummers playing next to each other.
Binker Golding uses the entire excursion of the saxophone alternating very low and warm notes with disruptive and impressive high-pitched sounds . Binker alternates in a very instinctive way some pianissimo that are almost whispered and explosions of very colorful notes that fill the environment and manage to draw the listeners' attention.
A sequence of syncopated rhythms that has you on the edge of your seat until the end of the track and then bursts into a liberating applause of heartfelt participation.
There is a scent of jazz of the great masters.
The Grundig 5010, with its power and dynamics manages to convey all the expressive capacity of the duo with a realism that makes it hard to believe that it comes from a 1952 radio.

P.I.Tchaikovsky - 1812 Overture: one of the most controversial tracks, but certainly one of the most loved by the public was written to commemorate the Russian success in the battle of Borodinó on September 7th 1812, fought during Napoleon's campaign in Russia.
It was commissioned for the inauguration of the huge Cathedral of Christ the Saviour in Moscow, built by the will of Tsar Alexander I as a memorial for the Russian victory of 1812 over the Napoleonic army.
The overture begins with the orthodox song “Spasi, Gospodi, Lyudi Tvoya” (“God, preserve your people”). It then continues with the popular melody, “U vorot” (“At the gates”). This first part is meant to convey the joy of popular and religious life before the arrival of the Napoleonic troops, represented by the Marseillaise (which however was not used as a national anthem at Napoleon's time).
The decreasing that follows represents the withdrawal of the French troops from Moscow and the arrival of cannon shots marks the military advance of the victorious Russian army. The tolling of bells marks the end of the conflict and the Russian imperial anthem “Bóže, Carjá chraní!” (“God save the Tsar”) is heard in the background (this hymn was not in use at the time either, just like the Marseillaise!).
Even in this very difficult track, the muscles of the 5010 and its excellent speakers have allowed an exciting and distortion-free listening, even at rather high volumes. The engraving is the famous one by Telarc, and you can hear it.

BLUETOOTH

Bluetooth receiver embed

READ MORE >

MULTI PLATFORM CONNECTION

Each radio is equipped with a cable for connection to any digital device.

READ MORE >

TUBESOUND IMPROVEMENT

- Bluetooth receiver embed - The unit is equipped with a BLUETOOTH receiver powered directly by the receiver power supply. This makes it possible to control the amplifier from any external digital device as an IPAD, a Smartphone, or a sophisticated multimedia station. So you can hear your preferred web station or your lossesless file without cables on the room. Wireless Receiver can be equipped upon requests.

- Multi Platform Connection - A customized adaptation cable to connect any digital device as Iphone, Smartphone, Laptop, CD Player etc. will be provided with this radio. This special cable suits the different impedances between the modern equipment and the receiver. Furthermore the two stereo channels flow into one without increasing the load to the input unit.

HISTORY

1930 - At 22 years old Max Grundig begin a radio repair business.

1939 - The II world War start. Grundig works primarily for the Wehrmacht and repair of telecommunication equipment.

1945 - Immediately after the war, the demand for repair work was very great. Max Grundig built the first two Grundig appliances: the Tubatest tube tester and the Novatest testing device.

1947 - Start the sale of a kit radio, the Heinzelmann. The unit is the basis of success, sold more than 15,000 pieces.

1950 - Very high frequency (VHF) is introduced to Germany and places new demands on the industry. Grundig launches the 380 W on the market.

1952 - The first television channel starts up in Germany. After intensive research, Grundig launches the FS 080 onto the market. In the same year the first portable tape recorder Reporter 500 L is created.

1956 - After a lot of radio produced with progrssively high performances was produced the Concert Radio 5080 equipped with an equaliser, which has five controls and a visual display.

1965 - A new factory is established in Braga, Portugal. The Satellit 205 is one of many appliances in the Satellit series. This product marks the beginning of Grundig production of high-quality global receivers.

1970 - The Audiorama 7000 Hi-fi was produced, it has twelve dynamic speaker systems in one speaker.

1976 - The Reel Tape Recorder TS 1000 is equipped for semi-professional use.

1980 - The slim-line Hi-fi Tuner ST 6000 and the Monolith Hi-fi Dynamic Flat Top Antenna, which has 22 speaker systems, are two particularly popular appliances in the new hi-fi range.

1984 - After severe drop in sales Philips increased its stake in Grundig 31.6 percent and takes over the corporate management.

1997 - Philips pulls out of its involvement with Grundig.

2003 - The company files for bankruptcy.

2008 - Turkey's Koç Holding took full ownership of Grundig Multimedia B.V., the parent company of Grundig Intermedia GmbH in Nuremberg.

Courtesy of: Grundig

MAIN FEATURES

Year of production:  1952/53
Superheterodyne IF 468/10700
9 AM circuits
10 FM circuits

Wavebands:
Long wave: 150 - 310 KHz
Medium wave 1: 515 - 945 KHz
Medium wave 2: 935 - 1620 KHz
Short wave 1: 5,9 - 8,6 MHz
Short wave 2: 8,6 - 12,5 MHz
Short wave 3: 12,5 - 18 MHz
FM: 86,5 - 100 MHz

Loudspeakers:
1 elliptical wideband
1 electrostatic tweeter
1 elliptical Mid/Tweeter

Dimensions (LHD): 706 x 414 x 305 mm / 27.8 x 16.3 x 12 inch
Net weight: 20 kg / 44 lb 0.8 oz

10 tubes:
EF80 EC92 EF85 ECH81 EM34 EAF42 EABC80 ECC40 2xEL12

Grundig 5010

TONE CONTROL WITH LEVEL INDICATION

The tones control system is very efficient. Above the large tone control knobs there is a band that lights up gradually indicating the emphasis on the band on which it acts.
Interesting the high-tone control knob linked to two thin ropes. One of them is for the position indicator of the control itself, whereas the other changes the position of the ferrite in the MF transformers modifying the inclination of the transformer’s curve.
By doing so high tones were attenuated/accentuated even before getting to the BF stage. Tone control was usually put into effect with the potentiometer on the voltage amplifier stage

AERIAL

Inside the cabinet there is a dipole for FM reception.
One arm of the dipole is also used for receiving AM bands.
Listening FM band the reception sensitivity with internal aerials is very good.
For AM bands using an external antenna the sensitivity is good.
The picture shows the dipole fixed internally to the cabinet.

Grundig 5010

Grundig 5010

TUNING CONTROL

For both AM and FM bands the tuning system is unique.
The single variable capacitor is divided into 4 sections, two for AM and two for FM.
Each section is used respectively for the RF amplifier and the oscillator.
The mechanism is very simple and robust. It has the disadvantage of being a unique command for all bands.

TUNING INDICATOR

The magic eye has of course been replaced.

Grundig 5010

LOUDSPEAKERS

There are three loudspeakers, all produced by Grundig.

The main wide band measures 13.8 in of width for 7.9 in of height. It covers a part of the radio’s width ..... that is so big.
A very interesting feature is that they are equipped with an adjustable basket.
This allows me to centre the cone movement with respect to the magnetic system.

The electrostatic tweeter is mounted in front of the main wideband. This gives a considerable presence effect to the musical reproduction.
The coaxial lodspeakers allow to locate the position, the depth with respect to the listener, of the various instruments or of the voice with significant precision.
It is a solution that I have always appreciated and that is found in the best radio devices.

The mid-tweeter has an oversized magnet. It has to tolerate considerable power peaks because it is cut very low.
The acute are unexpectedly crystalline whilst remaining very sweet.

The cones are cellulose treated and they are to this day in perfect condition, without any deformation or structural failure.
Objects built when they had to last “at least” the life time of the owner.

CONTROL PANEL

On the left you can find the volume control (with incorporated loudness).
Going to the right we find the tuning indicator, it reveal the perfect tuning of each station.
Below there are the bass knob.
By standing on the dialglass we see the Long Waves, the Two Mid Waves, the three Short Waves and the FM band.
The AM scale for Short, Medium, Long waves, and FM.
Finally, you see the treble indicator.
The tuning knob still remains to the extreme right side.

Below the dialglass we find the Bass control:
Then we see the keyboard whose keys have the following purpose respectively:
Power On / Off
Aux, LW, MW1, MW2
SW1, SW2, SW3, FM, MW (stored station)
Finally there is the knob of Treble control.

REAR SIDE

Output for external speakers.
Socket for recorder (tonbandgerat).
Turntable input (Tonabnehmer)
AM and FM aerial inputs and ground socket.

RESTORING WORKS

5010 AT THE SUNSET IN VENICE - A PHOTO EDITING OF COURSE
Grundig 5010
Grundig 5080 5080 - en

Grundig 5080 – en

Grundig Konzertgerät 5080 Hi-Fi Zauberklang

Grundig 5080

 

 

Grundig 5080

Grundig 5080 Hi-Fi Zauberklang

The Grundig 5080 Hi-Fi Zauberklang is one of the most powerful devices produced by this brand.
Grundig used to produce different classes of equipment. Those of the 1xxx series are the cheapest, those of the 2xxx and 3xxx series are middle class, those of the 4xxx and 5xxx series are high class.
Of course, the 5080 Hi-Fi Zauberklang belongs to the best series, and it shows.

It is the most gifted of the Grundigs. Only the 4055 can compare, as for the power stage and the loudspeakers set, but without having the 5 bands equalizer, but having two FM dials.
All about the 5080 is designed for the best performance. The power stage with two EL84s in push-pull.
The 5 bands equalizer, even in this case no radio device has ever had more. (highlighted in yellow in the diagram).

Loudness circuit (highlighted in green in the diagram) on the feedback circuit (highlighted in red in the diagram), for an effective emphasis and contemporary distortion reduction.
An extra preamplifier stage to make the most of the actual capabilities of the push-pull to receive double the input signal.
A Medium Frequency stage more for a perfect tuning even in the most difficult situations.
The radio section is clearly at the highest level for the time, but listening to liquid or vinyl music is impressive.

Everyone remembers the famous Bose 901 box with 9 mini-woofers of 10 cm. With that many speakers they stimulated the imagination of us all when they were launched on the market.
Well, the Bose 901 had a radiant surface of 700 cm2. The sum of the surface of all the speakers together covered an area of 700 cm2.
The speakers of this Grundig cover an area of about 1100 cm2 ... excluding the two tweeters from the calculation!!!
The radiant surface is not everything, of course, but this extreme simplification can already give an idea of the performance this machine is capable of.

Grundig 5080 Hi-Fi Zauberklang

BLUETOOTH

Embed Bluetooth Receiver upon requests

READ MORE >

MULTI PLATFORM CONNECTION

Each radio can be equipped with a cable for connection to any digital device.

READ MORE >

TUBESOUND IMPROVEMENTS

- Bluetooth receiver embedded - The unit can be equipped with a BLUETOOTH receiver powered directly by the receiver power supply. This makes it possible to control the amplifier from any external digital device as an IPAD, a Smartphone, or a sophisticated multimedia station. So you can hear your preferred web station or your lossesless file without cables on the room. Wireless Receiver can be equipped upon requests.

- Multi Platform Connection - A customized adaptation cable to connect any digital device as Iphone, Smartphone, Laptop, CD Player etc. can be provided with this radio. This special cable suits the different impedances between the modern equipment and the receiver. Furthermore the two stereo channels flow into one without increasing the load to the input unit.

HISTORY

1930 - At 22 years old Max Grundig begin a radio repair business.
1939 - The II world War start. Grundig works primarily for the Wehrmacht and repair of telecommunication equipment.
1945 - Immediately after the war, the demand for repair work was very great. Max Grundig built the first two Grundig appliances: the Tubatest tube tester and the Novatest testing device.
1947 - Start the sale of a kit radio, the Heinzelmann. The unit is the basis of success, sold more than 15,000 pieces.
1950 - Very high frequency (VHF) is introduced to Germany and places new demands on the industry. Grundig launches the 380 W on the market.
1952 - The first television channel starts up in Germany. After intensive research, Grundig launches the FS 080 onto the market. In the same year the first portable tape recorder Reporter 500 L is created.
1956 - After a lot of radio produced with progrssively high performances was produced the Concert Radio 5080 equipped with an equaliser, which has five controls and a visual display.
1965 - A new factory is established in Braga, Portugal. The Satellit 205 is one of many appliances in the Satellit series. This product marks the beginning of Grundig production of high-quality global receivers.
1970 - The Audiorama 7000 Hi-fi was produced, it has twelve dynamic speaker systems in one speaker.
1976 - The Reel Tape Recorder TS 1000 is equipped for semi-professional use.
1980 - The slim-line Hi-fi Tuner ST 6000 and the Monolith Hi-fi Dynamic Flat Top Antenna, which has 22 speaker systems, are two particularly popular appliances in the new hi-fi range.
1984 - After severe drop in sales Philips increased its stake in Grundig 31.6 percent and takes over the corporate management.
1997 - Philips pulls out of its involvement with Grundig.
2003 - The company files for bankruptcy.
2008 - Turkey's Koç Holding took full ownership of Grundig Multimedia B.V., the parent company of Grundig Intermedia GmbH in Nuremberg.

Courtesy of: Grundig

MAIN FEATURES

Year of production: 1956/57

Superheterodyne IF 468/10700
9 AM circuits
15 FM circuits

Wavebands: Long Waves, Medium Waves, Short Waves , FM

Loudspeakers:
1 elliptic wideband
2 electrostatic Tweeter
2 cone Mid/Tweeter

Dimensions (LHD): 700 x 430 x 290 mm / 27.6 x 16.9 x 11.4 inch
Net weight: 17.4 kg / 38 lb 5.2 oz

10 Tubes:
ECC85 ECH81 EF89 EF80 EM34 or EM35 EAA91 ECC81 EBC41 EL84 EL84

Grundig 5080

EQUALIZER WITH LEVEL INDICATION

The tones control system is a jewel. The device is equipped with a 5-band equalizer.
A red thread mark the position of the potentiometers and draws the chosen equalization curve.
Each knob is nicely associated with the musical instruments on which it acts.

Bass - Kettledrum, Tuba
Middle-Bass - Bassoon, Horn
Mid- Clarinet, Saxophone
Mid-High - Cornet, Violin
High - Trumpet, Flute

The visual effect is pleasant and easy to understand.

AERIALS

Inside the cabinet there is a dipole for FM reception and a ferrite rotating aerial for AM reception.
Ferrite aerial can be rotated from the outside to achieve a perfect tuning of the device in the AM.
In this picture see the rotation mechanism and the position indicator of the aerial.
The reception sensitivity with internal aerials is very good. This unit was in fact produced in a period when there were not many radio stations and those available fairly apart from each others.
Using an external aerial sensitivity is further increased.

Grundig 5080

Grundig 5080

SEPARATE CONTROL TUNING BETWEEN AM AND FM

The unit is equipped with mechanisms for keeping separate the AM and FM bands.
The tuning knob is single but a selector switch commutes into cable systems (all in steel) and pulleys separated depending on the band.
The movement is transferred to both mechanisms with a system of pulleys and separated gears.

On sides the tuning system

Grundig 5080

TUNING INDICATOR

The tuning indicator has of course been replaced.

Grundig 5080

LOUDSPEAKERS

As indicated in the initial description, there are five speakers. They are placed on the three sides of the device.

The main cone is a huge elliptical broad-band measuring 31 x 19 cm. It is made of sturdy alloy and has an Alnico magnet.
The dimensions of the magnet are considerable and also the weight of the speaker reveals its sturdiness.
In fact, it has to support the energy given by two EL84s.
The curve of the cone is of the exponential type, as befits a  very high quality broad-band.

The two electrostatic tweeters in front cover the highest audible frequency range.
On both sides there are two 25 x 17 cm broad-bands of Grundig production, also very efficient.

The final result is clearly a powerful sound, with very deep and fast bass.
The mid is also very clear and the voices are credible and highlighted, never mixed up.
The treble are bright but sweet, not strident.

An important musicality to be a radio.

CONTROL PANEL

Grundig 5080

The first knob on the left is the volume with physiological control
On the same axis the knob to rotate Ferrite antenna for OM and OL.
The position of the ferrite antenna can be seen in it own indicator, which lights up when the ferrite antenna is on.
AM dial for Short, Mid and Long waves.
FM dialglass.
Below from the left we find the following keys in order:
AUS - Off
TB - Tape recorder
TA - Turntable
FA - Ferrite antenna

Then we find the five equalizer knobs.
LW - Long waves
MW - Medium waves
KW - Short waves
UKW - FM
On the top we see the magic eye that indicates the perfect tuning.
Last the tuning control knob.

Grundig 5080

REAR SIDE

Output for external speakers.
Socket for recorder (tonbandgerat).
Turntable input (Tonabnehmer)
AM and FM aerial inputs and ground socket.
Remote control socket.

RESTORATION WORKS

THE USUAL AMAZING LAST IMAGE
Grundig 5080
Grundig 5040W/3D 5040w3d - en

Grundig 5040W/3D Motorized – en

Grundig 5040W/3D Motorized

Grundig 5040W/3D Motorized

The Grundig 5040W/3D is one of the best products made by this brand.Grundig used to produce different classes of devices. Those of series 1xxx are the cheapest, those of series 2xxx and 3xxx are medium-class and those of 4xxx and 5xxx are high-class.
Clearly, 5040W/3D belongs to the best class, and this is visible.

The radio section is very interesting from a technical point of view, as it is provided with an automatic search feature of the stored stations. The audio section, moreover, is totally satisfying from the acoustic point of view.
Let us focus on them separately.

Audio Section

The output stage is formed by a Telefunken EF804 tube as a pre-amplifier and a EL12 as a power section.
EF804 is a pentode appositely studied to have low noise and high gain. The pinout, different from any other pentodes, is designed in order to minimize the buzzing of strings.
The cathode is built in a peculiar material appositely imported from American International Nickel Corporation, which minimizes the microphonicity of the valve.
This valve was used in devices designed for professional studios... and in Grundig 5040W/3D
The EL12 is a pentode with 18W of anode dissipation, with a maximum output delivery of 8 Watts.
A tube with such features allows to have a class A output stage of noticeable power.
The efficiency of the four loudspeakers (three of which in alnico) is very high, so that the acoustic pressure delivered by this device is also really high.

In the photos and videos published on the website, two of these stereo configuration machines were used, one for each channel, during a Grundig device exposition.
The result is difficult to describe. The most common reaction was surprise. The audience didn't expect a couple of machines from 60 years ago to sound like that.
I hope to replicate this exhibition in some other public demonstration.

Radio section

The radio section in even more interesting technically.
The different receivable AM frequency bands are divided into several ranges, in order to increase noticeably the tuning precision of each station.
The subdivisions are the following:

KW1 - 50,8 to 35 mt (5,9 - 8,6 MHz)
KW2 - 35 to 24 mt (8,6 - 12,5 MHz)
KW3 - 24 to 16,7 mt (12,5 - 18 MHz)
MW1 - 585 to 318 mt (515 - 945 kHz)
MW2 - 321 to 185 mt (935 - 1620 kHz)

Bands LW, KW1, KW2, MW1, MW2, UK1, UK2 are provided with motorised memory.
The automatic memorisation is activated with the lever under the tuning knob. Then, the tuning knob is turned to the station that is to be memorised.
Now another band button can be pushed to memorise another station in the same way.
When the button of the previous band is pushed, a motor takes the index exactly to the station previously memorised on that button.
Beautiful to see and very useful.
The station research mechanism is complex and delicate to calibrate. Later on in the description, it will be further analysed.

Only Grundig 5040W/3D and 4040W/3D are provided with the automatic research system of the memorised stations.
Saba Freiburg is provided with automatic research of the stations, but it is a very different system, with different results.

BLUETOOTH

Embed Bluetooth Receiver upon requests

READ MORE >

MULTI PLATFORM CONNECTION

Each radio can be equipped with a cable for connection to any digital device.

READ MORE >

TUBESOUND IMPROVEMENTS

- Bluetooth receiver embedded - The unit can be equipped with a BLUETOOTH receiver powered directly by the receiver power supply. This makes it possible to control the amplifier from any external digital device as an IPAD, a Smartphone, or a sophisticated multimedia station. So you can hear your preferred web station or your lossesless file without cables on the room. Wireless Receiver can be equipped upon requests.

- Multi Platform Connection - A customized adaptation cable to connect any digital device as Iphone, Smartphone, Laptop, CD Player etc. can be provided with this radio. This special cable suits the different impedances between the modern equipment and the receiver. Furthermore the two stereo channels flow into one without increasing the load to the input unit.

HISTORY

1930 - At 22 years old Max Grundig begin a radio repair business.

1939 - The II world War start. Grundig works primarily for the Wehrmacht and repair of telecommunication equipment.

1945 - Immediately after the war, the demand for repair work was very great. Max Grundig built the first two Grundig appliances: the Tubatest tube tester and the Novatest testing device.

1947 - Start the sale of a kit radio, the Heinzelmann. The unit is the basis of success, sold more than 15,000 pieces.

1950 - Very high frequency (VHF) is introduced to Germany and places new demands on the industry. Grundig launches the 380 W on the market.

1952 - The first television channel starts up in Germany. After intensive research, Grundig launches the FS 080 onto the market. In the same year the first portable tape recorder Reporter 500 L is created.

1956 - After a lot of radio produced with progrssively high performances was produced the Concert Radio 5080 equipped with an equaliser, which has five controls and a visual display.

1965 - A new factory is established in Braga, Portugal. The Satellit 205 is one of many appliances in the Satellit series. This product marks the beginning of Grundig production of high-quality global receivers.

1970 - The Audiorama 7000 Hi-fi was produced, it has twelve dynamic speaker systems in one speaker.

1976 - The Reel Tape Recorder TS 1000 is equipped for semi-professional use.

1980 - The slim-line Hi-fi Tuner ST 6000 and the Monolith Hi-fi Dynamic Flat Top Antenna, which has 22 speaker systems, are two particularly popular appliances in the new hi-fi range.

1984 - After severe drop in sales Philips increased its stake in Grundig 31.6 percent and takes over the corporate management.

1997 - Philips pulls out of its involvement with Grundig.

2003 - The company files for bankruptcy.

2008 - Turkey's Koç Holding took full ownership of Grundig Multimedia B.V., the parent company of Grundig Intermedia GmbH in Nuremberg.

Courtesy of: Grundig

MAIN FEATURES

Year of production:  1954/56

Superheterodyne IF 468/10700
11 AM circuits
11 FM circuits

Wavebands: 1 x Long Waves, 2 x Medium Waves, 3 x Short Waves , 2 x FM

Loudspeakers:
1 elliptic wideband
1 electrostatic Tweeter
2 cone Mid/Tweeter

Dimensions (LHD): 706 x 444 x 318 mm / 27.8 x 17.5 x 12.5 inch
Net weight: 20.5 kg / 45 lb 2.5 oz

9 Tubes:
ECC85 EF89 ECC82 EF89 EM85 EBF80 EAA91 EF804 EL12

Grundig 5040W/3D

TONE CONTROL WITH LEVEL INDICATION

The tones control system is very efficient. Above the large tone control knobs there is a band that lights up gradually indicating the emphasis on the band on which it acts.
Interesting the high-tone control knob linked to two thin ropes. One of them is for the position indicator of the control itself, whereas the other changes the position of the ferrite in the MF transformers modifying the inclination of the transformer’s curve.
By doing so high tones were attenuated/accentuated even before getting to the BF stage. Tone control was usually put into effect with the potentiometer on the voltage amplifier stage

AERIALS

Inside the cabinet there is a dipole for FM reception and a ferrite rotating aerial for AM reception.
Ferrite aerial can be rotated from the outside to achieve a perfect tuning of the device in the AM.
In this picture see the rotation mechanism and the position indicator of the aerial.

The reception sensitivity with internal aerials is very good. This unit was in fact produced in a period when there were not many radio stations and those available fairly apart from each others.
Using an external aerial sensitivity is further increased.

Grundig 5040W/3D

TUNING CONTROL AND MOTORISED MEMORY

The tuning can be activated manually, as in every normal device, by turning the tuning knob with the automatic tuning switch turned to the right.

When it is turned to the left, instead, the station that is being played is “mechanically” stored.
For example, I have pushed the UKW2 button and I am listening to a station in 89,90 MHz.
By pushing one of the other harmony buttons, the motor takes the index on the station that was last played.
By pushing the UKW2 button again, the motor takes the harmony exactly to 89,90 MHz.

This operation can be repeated for any station on the UKW1, UKW2, MW1, MW2, KW1, KW2 and LW bands.

The automatic memorisation is obtained with a series of clutches, springs and steel rods and levers which require an accurate calibration. Once calibrated and lubricated, the mechanic system is totally reliable and solid. There is no danger of slippage as there are sprockets, and clutches are made of high-quality flexible steel blades.
A real masterpiece of mechanical engineering.

TUNING INDICATOR

The magic eye has of course been replaced.

LOUDSPEAKERS

As indicated in the description at the beginning, there are four loudspeakers. They are placed on the three sides of the device.

The main cone is a huge elliptic broadband which measures.... it is built in solid alloy and has an alnico magnet.
The dimensions of the magnet are impressive and the weight of the whole loudspeaker reveals its robustness.
Actually, it has to sustain the weight of the big EL12.
The cone curvature is of the exponential type, as befits a super-high-quality broadband.

The frontal electrostatic tweeter covers the very-high frequencies range.
On the two sides are two Mid-Tweeter produced by Grundig, also very efficient.

The final result is, of course, a very powerful sound with very deep and fast bass.
The medium range is also very clear and the voices are credible and in evidence, never imprecise.
Trebles are brilliant but sweet, not strident.

A remarkable musicality for a radio.

CONTROL PANEL

Grundig 5040W/3D

The first knob we find is that of the Volume with integrated loudness.
Coaxial to it is the rotation knob of the ferrite aerial for MW and LW.
The position of the ferrite aerial is visible, see-through view, is the windowpane of the magical eye.
The latter indicates the perfect tuning of each station.
Going further on the display, we can see the AM and FM bands scales.
Further on the right is the tuning control knob.
Coaxial to it is the lever which turns on and off the motorized research of the preset stations.

Below the tuning-dial we find, first of all, the bass-tones control knob.
Then, we see the long "piano-keyboard", the keys of which have this purpose, respectively:
On/Off
Aux-in;
Long Waves
Medium Waves 1, Medium Waves 2
Short Waves 1, Short Waves 2, Short Waves 3
FM1, FM2
Finally, there is the treble control knob.
Above the tones knobs, the respective indicators are visible.
i

Grundig 5040W/3D

REAR SIDE

Output for external speakers.

Socket for recorder (tonbandgerat).

Turntable input (Tonabnehmer)

AM and FM aerial inputs and ground socket.

RESTORATION WORKS

THE USUAL AMAZING LAST IMAGE
Grundig 5040W/3D
Grundig 4004W 4004w - en

Grundig 4004W – en

Grundig 4004W

GRUNDIG 4004W

Three models of  Grundig 4004 have been produced.
The  Grundig 4004GW, cheaper version, without power transformer and tubes filaments powered in series, UL41 output tube 4,2 Watt and a single loudspeaker.
The 4004W (EL41), middle version, with power transformer, EL41 output tube 3,9 Watt and a single loudspeaker.
La 4004W (EL12), top version, with power transformer, EL12 final 8 Watt and two loudspeakers.

In this review I analyse, clearly, the most glamorous model, the Grundig 4004W (EL12).

I begin the description anticipating the most singular and interesting peculiarity of this machine: it is perfect for the reproduction in Short Waves.
In fact, apart from having the short waves band divided into three sections, it is one of the rare commercial radios provided with RF amplifier stage for AM bands placed before the converter/mixer stage.

This device is particularly interesting as it combines some features that in other radios we only find singularly.
1) compact dimensions for the class
2) top-quality trim of the cabinet
3) great output power and sound quality
4) good number of receivable bands

Let us analyse these features in detail:

1) compact dimensions for the class: despite being unsurpassed as for the output power, in Grundig's production of 1950/51 the dimensions are relatively compact. This facilitates the location in every space.
Moreover, the controls are particularly simple, intuitive and pleasant to operate. The device is thus presented as overall amicable and a high level of familiarity is immediately established, at first blush.
2) top-quality trim of the cabinet: the wood grain is very evident and they create a fascinating movement on the surface of the cabinet.
Another accuracy, expensive and difficult to obtain is the manufacturing of light frame that enclose the cabinet. It is not painting nor glued tapes, but authentic inlays of clear wood.
This technique was abandoned by Grundig the next year, in favour of much cheaper processes for the reproduction of frames.
3) great output power and sound quality: the output stage is formed by an excellent EL12 in A class, provided with an output transformer of great size for the avoidance of saturations on lower notes. The output power is at the highest level of Grundig's production of those years, about 6W. This remarkable power is transformed into a considerable acoustic pressure by the generous Alnico loudspeaker with cast alloy basket and by the slanting cone profile. The high-pitched tones, finally, become crystalline, never too sharp, thanks to the very big electrostatic tweeter placed beside the broadband.
4) good number of receivable bands: the section in amplitude modulation of this device is very accurately designed.
In the 1950's in Short and Medium waves a great number of broadcasters was present, thanks to the ability of this wavelengths to cover significant distances.
In Grundig 4004W the short wave band is divided into three sections, completely independent.
Short waves 1, from 50,8 to 35 mt (5,9 - 8,6 MHz)
Short waves 2, from 35 to 24 mt (8,6 - 12,5 MHz)
short waves 3, from 24 a 16,7 mt (12,5 - 18 MHz)
In this way the tuning on such bands is very precise, as each band has the entire extension of the scale.
In the devices produced in the next few years the short wave band is squeezed on a single scale.

Medium waves have been divided into two sections:

Medium waves 1, from 585 to 318 mt (515 - 945 kHz)
Medium waves 2, from 321 to 185 mt (935 - 1620 kHz)

Moreover, before the oscillator/converter stage there is an Amplifier RF stage formed by an EF11. This solution will also be abandoned in the next few years due to the progressive increase in the importance of the FM band.

The FM band goes from 87,5 to 100 MHz. The installation of the Bluetooth is thus highly recommended on this device.

All of these adjustments will make these devices last over time. Nowadays, should an engineer include such adjustments, he would probably be demoted or thrown out of the company!

Grundig 4004W

 

Grundig 4004W

 

Grundig 4004W

BLUETOOTH

Embed Bluetooth receiver

READ MORE >

MULTI PLATFORM CONNECTION

Each radio can be equipped with a cable for connection to any digital device.

READ MORE >

TUBESOUND IMPROVEMENTS

- Bluetooth receiver embedded - The unit can be equipped with a BLUETOOTH receiver powered directly by the receiver power supply. This makes it possible to control the amplifier from any external digital device as an IPAD, a Smartphone, or a sophisticated multimedia station. So you can hear your preferred web station or your lossesless file without cables on the room. Wireless Receiver can be equipped upon requests.

- Multi Platform Connection - A customized adaptation cable to connect any digital device as Iphone, Smartphone, Laptop, CD Player etc. can be provided with this radio. This special cable suits the different impedances between the modern equipment and the receiver. Furthermore the two stereo channels flow into one without increasing the load to the input unit.

HISTORY

1930 - At 22 years old Max Grundig begin a radio repair business.

1939 - The II world War start. Grundig works primarily for the Wehrmacht and repair of telecommunication equipment.

1945 - Immediately after the war, the demand for repair work was very great. Max Grundig built the first two Grundig appliances: the Tubatest tube tester and the Novatest testing device.

1947 - Start the sale of a kit radio, the Heinzelmann. The unit is the basis of success, sold more than 15,000 pieces.

1950 - Very high frequency (VHF) is introduced to Germany and places new demands on the industry. Grundig launches the 380 W on the market.

1952 - The first television channel starts up in Germany. After intensive research, Grundig launches the FS 080 onto the market. In the same year the first portable tape recorder Reporter 500 L is created.

1956 - After a lot of radio produced with progrssively high performances was produced the Concert Radio 5080 equipped with an equaliser, which has five controls and a visual display.

1965 - A new factory is established in Braga, Portugal. The Satellit 205 is one of many appliances in the Satellit series. This product marks the beginning of Grundig production of high-quality global receivers.

1970 - The Audiorama 7000 Hi-fi was produced, it has twelve dynamic speaker systems in one speaker.

1976 - The Reel Tape Recorder TS 1000 is equipped for semi-professional use.

1980 - The slim-line Hi-fi Tuner ST 6000 and the Monolith Hi-fi Dynamic Flat Top Antenna, which has 22 speaker systems, are two particularly popular appliances in the new hi-fi range.

1984 - After severe drop in sales Philips increased its stake in Grundig 31.6 percent and takes over the corporate management.

1997 - Philips pulls out of its involvement with Grundig.

2003 - The company files for bankruptcy.

2008 - Turkey's Koç Holding took full ownership of Grundig Multimedia B.V., the parent company of Grundig Intermedia GmbH in Nuremberg.

Courtesy of: Grundig

MAIN FEATURES

Year of production:  1951/52
Superheterodyne IF 468/10700
9 AM circuits
9 FM circuits
Wavebands: Onde Medie (OM1, OM2), Onde Lunghe (OL), Onde Corte (OC1-OC2-OC3), FM (UKW), OM (Memory)
Loudspeakers:
1 22 cm wideband
1 electrostatic Mid/Tweeter
Dimensions (LHD):  644 x 384 x 272 mm / 25.4 x 15.1 x 10.7 inch
Net weight: 15 kg / 33 lb 0.6 oz
8 tubes:
EF80 EC92 EF41 ECH81 EM34 EAF42 EABC80 EL12

Grundig 4004W

TONE CONTROL WITH LEVEL INDICATION

The tones control system is very efficient. Above the large tone control knobs there is a band that lights up gradually indicating the emphasis on the band on which it acts.
Interesting the high-tone control knob linked to two thin ropes. One of them is for the position indicator of the control itself, whereas the other changes the position of the ferrite in the MF transformers modifying the inclination of the transformer’s curve.
By doing so high tones were attenuated/accentuated even before getting to the BF stage. Tone control was usually put into effect with the potentiometer on the voltage amplifier stage

AERIALS

Inside the cabinet there is a dipole for FM reception.
One arm of the dipole is also used for receiving AM bands.
Listening FM band the reception sensitivity with internal aerials is very good.
For AM bands using an external antenna the sensitivity is good.
The picture shows the dipole fixed internally to the cabinet.

Grundig 4004W

TUNING CONTROL

For both AM and FM bands the tuning system is unique.
The single variable capacitor is divided into 4 sections, two for AM and two for FM.
Each section is used respectively for the RF amplifier and the oscillator.
The mechanism is very simple and robust. It has the disadvantage of being a unique command for all bands.

TUNING INDICATOR

The magic eye has of course been replaced.

Grundig 4004W

LOUDSPEAKERS

As indicated in the first description, there are two loudspeakers. They are both placed on the front.

The main broadband cone has a diameter of 22 cm. It is made of strong alloy and has an Alnico magnet.
The dimensions of the magnet are considerable and the weight of the whole loudspeaker reveals its sturdiness.
Actually, it has to sustain the solidity of the big EL12.
The curving of the cone is exponential, as it is customary in a high-quality broadband.
This cone is protected from dust by a light loosely-woven cloth, enough to make also high-pitched notes pass through.

The electrostatic tweeter covers the range of very high frequencies.
The final result is, of course, a very clear and prompt sound on high frequencies, due to the very light moving mass.

Both the loudspeakers are produced by Grundig.

CONTROL PANEL

Grundig 4004W

The magical eye, which indicates the perfect tuning of each station, is placed on the loudspeakers panel.
On the left there is the volume control (with integrated loudness).
At the beginning of its running, the potentiometer snaps because of the ignition switch.
Moving right, we find the low tones indicator on the glass display.
Then, we find the scale of Long Waves, the two of Medium Waves and the three of Short Waves and the FM band.
Finally, the high-pitched tones indicator is visible behind the glass.
Further on the right is the harmony control knob.

Below the tuning-dial is, first of all, the low-tones control knob.
Then we see the long keyboard, the buttons of which serve as, respectively:
Auxiliary Input;
Long Waves;
Medium Waves 1, Medium Waves 2
Short Waves 1, Short Waves 2, Short Waves 3
FM
Finally, there is the high-pitched tones control knob

Grundig 4004W

REAR SIDE

Output for external speakers.
Socket for recorder (tonbandgerat).
Turntable input (Tonabnehmer)
AM and FM aerial inputs and ground socket.

RESTORING WORKS

THE USUAL AMAZING LAST IMAGE
Grundig 4004W
grundig 3035W/3D 3035 - en

Grundig 3035 – en

Grundig 3035 3D Klang

Grundig 3035 3D Klang

Grundig 3035 3D Klang is a device classified as medium class of Grundig.
Like some other devices of the 3xxx serie, this one is also particularly interesting.
The thing about this radio that surprised me is the extraordinary reproduction of the spoken parts.
The music is well reproduced but the transmissions where the presence of the speaker is dominant are really impressive.
The voice is present, well balanced and preponderant. All shades, including speaker faults or habits are understandable.
In my opinion, this device is appropriate to the “typical radio listener”, turning on the radio in the morning, turning it off in the evening and listening without temporal continuity to radio commentary, interviews and music.

The Output stage is a classic A-Class with an EL84 valve as final and the triode section of the EABC80 valve as a preamplifier.
The device is equipped with 4 loudspeakers, one of which is an electrostatic frontal tweeter.

At the back of the radio, there is a visible socket where it is possible to connect a remote command. It is possible to turn on the device, adjust the volume and insert some predefined equalizations.
All of this is certainly not standard equipment for middle class devices, but for far superior devices.

The cabinet is important for its size, which guarantees a split between frontal and posterior emissions of the loudspeaker.
The loudspeakers of these radios have been mounted in a particular configuration “quiet open Baffle” whereby a big separation surface is very important for an efficient reproduction of bass notes.
The sound is substantial but the strong point of the radio is the clarity of reproduction of solo instruments and of the voice.

grundig 3035W/3D

BLUETOOTH

Bluetooth receiver embed

READ MORE >

MULTI PLATFORM CONNECTION

Each radio is equipped with a cable for connection to any digital device.

READ MORE >

TUBESOUND IMPROVEMENT

- Bluetooth receiver embed - The unit is equipped with a BLUETOOTH receiver powered directly by the receiver power supply. This makes it possible to control the amplifier from any external digital device as an IPAD, a Smartphone, or a sophisticated multimedia station. So you can hear your preferred web station or your lossesless file without cables on the room. Wireless Receiver can be equipped upon requests.
- Multi Platform Connection - A customized adaptation cable to connect any digital device as Iphone, Smartphone, Laptop, CD Player etc. will be provided with this radio. This special cable suits the different impedances between the modern equipment and the receiver. Furthermore the two stereo channels flow into one without increasing the load to the input unit.

HISTORY

1930 - At 22 years old Max Grundig begin a radio repair business.

1939 - The II world War start. Grundig works primarily for the Wehrmacht and repair of telecommunication equipment.

1945 - Immediately after the war, the demand for repair work was very great. Max Grundig built the first two Grundig appliances: the Tubatest tube tester and the Novatest testing device.

1947 - Start the sale of a kit radio, the Heinzelmann. The unit is the basis of success, sold more than 15,000 pieces.

1950 - Very high frequency (VHF) is introduced to Germany and places new demands on the industry. Grundig launches the 380 W on the market.

1952 - The first television channel starts up in Germany. After intensive research, Grundig launches the FS 080 onto the market. In the same year the first portable tape recorder Reporter 500 L is created.

1956 - After a lot of radio produced with progrssively high performances was produced the Concert Radio 5080 equipped with an equaliser, which has five controls and a visual display.

1965 - A new factory is established in Braga, Portugal. The Satellit 205 is one of many appliances in the Satellit series. This product marks the beginning of Grundig production of high-quality global receivers.

1970 - The Audiorama 7000 Hi-fi was produced, it has twelve dynamic speaker systems in one speaker.

1976 - The Reel Tape Recorder TS 1000 is equipped for semi-professional use.

1980 - The slim-line Hi-fi Tuner ST 6000 and the Monolith Hi-fi Dynamic Flat Top Antenna, which has 22 speaker systems, are two particularly popular appliances in the new hi-fi range.

1984 - After severe drop in sales Philips increased its stake in Grundig 31.6 percent and takes over the corporate management.

1997 - Philips pulls out of its involvement with Grundig.

2003 - The company files for bankruptcy.

2008 - Turkey's Koç Holding took full ownership of Grundig Multimedia B.V., the parent company of Grundig Intermedia GmbH in Nuremberg.

Courtesy of: Grundig

MAIN FEATURES

Year of production: 1954/55
Superheterodyne IF 468/10700
7 AM Circuits
11 FM Circuits
Wavebands:
LW, MW, SW, FM
Operating voltage (CA) 110; 125; 160; 220 Volts
1 Woofer
2 Midrange-Tweeters
1 Electrostatic Tweeter
Dimensions (LHD): 620 x 390 x 263 mm / 24.4 x 15.4 x 10.4 inch
Net weight: 13 kg / 28 lb 10.1 oz
7 Tubes:
ECC85 ECH81 EF89 EABC80 EM85 EL84

Rotating ferrite antenna for AM

grundig 3035W/3D

TONE CONTROL WITH LEVEL INDICATION

The tones control system is very efficient. Above the large tone control knobs there is a band that lights up gradually indicating the emphasis on the band on which it acts.
A detail specific for “extreme” technical radios lovers: the high-tone control knob is linked to two thin ropes. One of them is for the position indicator of the control itself, whereas the other changes the position of the ferrite in the MF transformers modifying the inclination of the transformer’s curve.
By doing so high tones were attenuated/accentuated even before getting to the BF stage. Tone control was usually put into effect with the potentiometer on the tension amplifier stage

AERIALS

Inside the cabinet there is a dipole for FM reception and a ferrite rotating aerial for AM reception.
Ferrite aerial can be rotated from the outside to achieve a perfect tuning of the device in the AM.
In this picture see the rotation mechanism and the position indicator of the aerial.
The reception sensitivity with internal aerials is very good. This unit was in fact produced in a period when there were not many radio stations and those available fairly apart from each others.
Using an external aerial sensitivity is further increased.

Grundig 3035W/3D

TUNING CONTROL

The tuning system is another gem.
The unit is equipped with mechanisms for keeping separate the AM and FM bands.
The tuning knob is single but a selector switch commutes into cable systems (all in steel) and pulleys separated depending on the band.
The movement is transferred to both mechanisms with a system of pulleys and separated gears.

Grundig 3035W/3D

TUNING INDICATOR

The magic eye has of course been replaced.

grundig 3035W/3D

LOUDSPEAKERS

There are four loudspeakers. In front there is a fixed big wideband loudspeaker and an electrostatic tweeter.
On the sides are placed two elliptical mid- tweeters.
In this way, it is possible to listen to a clean sound from whatever position you listen.
Of course, this radio should not be placed in a bookcase or in furniture that covers the side surfaces.

Grundig 3035 3D Klang

FERN-DIRIGENT

Remote control connection “fern – dirigent” allows control of the start, volume and equalization.
Below on the right, you can see the diagram “remote control”. It is not easy to find.
The price of the fern – dirigent starts from a minimum of 350 euros and very few are sold in Italy.

Grundig 3035 3D Klang

Grundig 3035 3D Klang

CONTROL PANEL

grundig 3035W/3D

To the left is the volume control (with built-in loudness).
Axially on the volume is the ferrite antenna rotation command.
You see the antenna position indicator.
The AM scale for Court Waves, Medium and Long.
The FM scale.
The magic eye indicating the perfect tuning of each station.

Below to the left we find the off key, turntables key.
The key to tuning on Long, Medium, Short Waves, FM, FA (Ferrite Antennas).
Below each key is indicated the frequency band concerned.
There is finally the knob of the tuning, whose movement is very pleasant being supported by a large flywheel.
Below we find the two big knobs for controlling bass and treble.

 

LATO POSTERIORE

Remote Connection (fern-dirigent)

Output for external speakers.

Socket for recorder (tonbandgerat).

Turntable input (Tonabnehmer)

AM and FM aerial inputs and ground socket.

RESTORING WORKS

THE USUAL AMAZING LAST IMAGE
grundig 3035W/3D
Grundig 4010W 4010 - en

Grundig 4010W – en

Grundig 4010W

GRUNDIG 4010W

Produced in 1952 and 1953, the Grundig 4010W was one of the high quality models of the manufacturer, and, of course, of the entire German production.

VIntage Radio Cabinet

Let’s start by describing the cabinet.
The dimensions are obviously important. The device does not want to pass by unnoticed. The wood veining is deliberately pronounced.
The furniture is enriched by further refinement, to clear lines that slim down the sides and the front are not drawn. These are authentic inlays of light wood.
Today, it is inconceivable to do such a thing, both for cost and for mastery.

In Grundig 40101W the band of the Short Waves is divided into three autonomous sections:

SW1 -  50,8 to 35 mt (5,9 - 8,6 MHz)
SW2 - 35 to 24 mt (8,6 - 12,5 MHz)
SW3 - 24 to 16,7 mt (12,5 - 18 MHz)

In this way, the tuning on the bands is very accurate because each band has the entire extension of all the musical scale.
In the devices produced in the following years, the Band of the Short Waves were compressed into a single musical scale.
The Medium Waves are also divided into three sections:

MW1 - 585 to 318 mt (515 - 945 kHz)
MW2 - 321 to 185 mt (935 - 1620 kHz)

Moreover, the memorization of one Medium Wave station is planned. Pressing the ORT-S button, the head of a threaded plank appears, allows the button to be rotated and tune into a favourite station.
Each time that you press the ORT-S button, the radio will tune in to the memorized station.
The FM Band ranges from 87.5 to 100 MHz. The installation of Bluetooth is highly recommended on this radio.

The amplifier section consists in a classic EABC80 tube as a preamplifier. It is equipped from controls of the high and low tones.
The output stage is a powerful EL12 polarized to operate in A-Class.
It is provided with a negative feedback system, elaborated for linearize the response in the frequency of the output stage.
However, the circuit does not introduce a high feedback factor, so the sound remains very natural.
The output transformer is well dimensioned, so it is impossible to have saturation effects.

The result of all these expensive technical solutions allows a high quality of the sound.
This was another excellent realization of the Grundig engineers.

Grundig 4010W

BLUETOOTH

Bluetooth receiver embed

READ MORE >

MULTI PLATFORM CONNECTION

Each radio is equipped with a cable for connection to any digital device.

READ MORE >

TUBESOUND IMPROVEMENT

- Bluetooth receiver embed - The unit is equipped with a BLUETOOTH receiver powered directly by the receiver power supply. This makes it possible to control the amplifier from any external digital device as an IPAD, a Smartphone, or a sophisticated multimedia station. So you can hear your preferred web station or your lossesless file without cables on the room. Wireless Receiver can be equipped upon requests.

- Multi Platform Connection - A customized adaptation cable to connect any digital device as Iphone, Smartphone, Laptop, CD Player etc. will be provided with this radio. This special cable suits the different impedances between the modern equipment and the receiver. Furthermore the two stereo channels flow into one without increasing the load to the input unit.

HISTORY

1930 - At 22 years old Max Grundig begin a radio repair business.

1939 - The II world War start. Grundig works primarily for the Wehrmacht and repair of telecommunication equipment.

1945 - Immediately after the war, the demand for repair work was very great. Max Grundig built the first two Grundig appliances: the Tubatest tube tester and the Novatest testing device.

1947 - Start the sale of a kit radio, the Heinzelmann. The unit is the basis of success, sold more than 15,000 pieces.

1950 - Very high frequency (VHF) is introduced to Germany and places new demands on the industry. Grundig launches the 380 W on the market.

1952 - The first television channel starts up in Germany. After intensive research, Grundig launches the FS 080 onto the market. In the same year the first portable tape recorder Reporter 500 L is created.

1956 - After a lot of radio produced with progrssively high performances was produced the Concert Radio 5080 equipped with an equaliser, which has five controls and a visual display.

1965 - A new factory is established in Braga, Portugal. The Satellit 205 is one of many appliances in the Satellit series. This product marks the beginning of Grundig production of high-quality global receivers.

1970 - The Audiorama 7000 Hi-fi was produced, it has twelve dynamic speaker systems in one speaker.

1976 - The Reel Tape Recorder TS 1000 is equipped for semi-professional use.

1980 - The slim-line Hi-fi Tuner ST 6000 and the Monolith Hi-fi Dynamic Flat Top Antenna, which has 22 speaker systems, are two particularly popular appliances in the new hi-fi range.

1984 - After severe drop in sales Philips increased its stake in Grundig 31.6 percent and takes over the corporate management.

1997 - Philips pulls out of its involvement with Grundig.

2003 - The company files for bankruptcy.

2008 - Turkey's Koç Holding took full ownership of Grundig Multimedia B.V., the parent company of Grundig Intermedia GmbH in Nuremberg.

Courtesy of: Grundig

MAIN FEATURES

Year of production:  1952/53
Superheterodyne IF 468/10700
9 AM circuits
10 FM circuits
Wavebands: Onde Medie (OM1, OM2), Onde Lunghe (OL), Onde Corte (OC1-OC2-OC3), FM (UKW), OM (Memory)
Loudspeakers:
1 elliptical wideband
1 elliptical Mid/Tweeter
Dimensions (LHD):  660 x 414 x 295 mm / 26 x 16.3 x 11.6 inch
Net weight: 16.7 kg / 36 lb 12.5 oz
8 tubes:
EF80 EC92 EF41 ECH81 EM34 EAF42 EABC80 EL12

Grundig 4010W

TONE CONTROL WITH LEVEL INDICATION

The tones control system is very efficient. Above the large tone control knobs there is a band that lights up gradually indicating the emphasis on the band on which it acts.
Interesting the high-tone control knob linked to two thin ropes. One of them is for the position indicator of the control itself, whereas the other changes the position of the ferrite in the MF transformers modifying the inclination of the transformer’s curve.
By doing so high tones were attenuated/accentuated even before getting to the BF stage. Tone control was usually put into effect with the potentiometer on the voltage amplifier stage

AERIALS

Inside the cabinet there is a dipole for FM reception.
One arm of the dipole is also used for receiving AM bands.
Listening FM band the reception sensitivity with internal aerials is very good.
For AM bands using an external antenna the sensitivity is good.
The picture shows the dipole fixed internally to the cabinet.

Grundig 4010W

TUNING CONTROL

For both AM and FM bands the tuning system is unique.
The single variable capacitor is divided into 4 sections, two for AM and two for FM.
Each section is used respectively for the RF amplifier and the oscillator.
The mechanism is very simple and robust. It has the disadvantage of being a unique command for all bands.

TUNING INDICATOR

The magic eye has of course been replaced.

Grundig 4010W

BAND INDICATOR

With this beautiful type of keyboard, called "piano", you cannot understand which band key is pressed and which band is being listened to.
For this reason, each button has an indicator that changes color when the relative key is selected.

LOUDSPEAKERS

There are two loudspeakers.
This couple of loudspeakers are very oversized.
In fact, it is the same couple used in the 5010 models, that assembles two EL12 by push-pull mode.
The main wide band measures 13.8 in of width for 7.9 in of height. It covers a part of the radio’s width ..... that is so big.
Grundig produce both loudspeakers.
A very interesting feature is that they are equipped with an adjustable basket.
This allows me to centre the cone movement with respect to the magnetic system.

The mid-tweeter has an oversized magnet. It has to tolerate considerable power peaks because it is cut very low.
The acute are unexpectedly crystalline whilst remaining very sweet.

The cones are cellulose treated and they are to this day in perfect condition, without any deformation or structural failure.
Objects built when they had to last “at least” the life time of the owner.

Grundig 4010W

CONTROL PANEL

Grundig 4010W

On the left you can find the volume control (with incorporated loudness).
Going to the right we find the tuning indicator, it reveal the perfect tuning of each station.
Below there are the bass knob.
By standing on the dialglass we see the Long Waves, the Two Mid Waves, the three Short Waves and the FM band.
The AM scale for Short, Medium, Long waves, and FM.
Finally, you see the treble indicator.
The tuning knob still remains to the extreme right side.

Below the dialglass we find the Bass control:
Then we see the keyboard whose keys have the following purpose respectively:
Power On / Off
Aux, LW, MW1, MW2
SW1, SW2, SW3, FM, MW (stored station)
Finally there is the knob of Treble control.

Grundig 4010W

REAR SIDE

Output for external speakers.
Socket for recorder (tonbandgerat).
Turntable input (Tonabnehmer)
AM and FM aerial inputs and ground socket.

RESTORING WORKS

THE USUAL AMAZING LAST IMAGE
Grundig 4010W
Grundig 3012 - The butterfly 3012 - en

Grundig 3012 – en

Grundig 3012

GRUNDIG 3012

The Grundig 3012 is a very special device called friendly "The bufferfly" because the loudspeakers position. The classification of Grundig devices is as follows:

Serie 1 xxx – Economic Class (ie.1060)
Serie 2 xxx – Economic - Medium Class (ie.2035)
Serie 3 xxx – Average Class (ie.3012)
Serie 4 xxx – Medium – High Class (ie.4035)
Serie 5 xxx - High Class (ie.5010)
Serie 6 xxx – Very High Class (ie.6099)

The Grundig 3012 belongs to the Medium Class but it has some features of the Upper Class.
Firstly, the final tube is a powerful EL12, normally used on Serie 5 devices.

The EL12 is a large pentode that delivers until 8W in A- Class.
The output transformer is a very large, almost like the power transformers in a normal radio, so it hardly goes into saturation.

Another important feature is the two elliptical loudspeakers.
Together, they can reproduce very low notes. Being smaller, they are faster and for this reason the bass is very limited, pleasant and modern.

Finally, the central tweeter and the symmetrical arrangement of the two broadband loudspeakers simulate a sound emitting point source. In this way, it is possible to get a remarkable “soundstage” effect and great depth of environment.

The cabinet of the radio is very beautiful and contains a surprise.
The clear frames that you can see on the sides are not painted, but they are inlaid.
All of these architectural choices do not belong to a Medium Class device, in fact Grundig 3012 is not a device of that class.

 

Grundig 3012

Grundig 3012

BLUETOOTH

Bluetooth receiver embed

READ MORE >

MULTI PLATFORM CONNECTION

Each radio is equipped with a cable for connection to any digital device.

READ MORE >

TUBESOUND IMPROVEMENT

- Bluetooth receiver embed - The unit is equipped with a BLUETOOTH receiver powered directly by the receiver power supply. This makes it possible to control the amplifier from any external digital device as an IPAD, a Smartphone, or a sophisticated multimedia station. So you can hear your preferred web station or your lossesless file without cables on the room. Wireless Receiver can be equipped upon requests.

- Multi Platform Connection - A customized adaptation cable to connect any digital device as Iphone, Smartphone, Laptop, CD Player etc. will be provided with this radio. This special cable suits the different impedances between the modern equipment and the receiver. Furthermore the two stereo channels flow into one without increasing the load to the input unit.

HISTORY

1930 - At 22 years old Max Grundig begin a radio repair business.

1939 - The II world War start. Grundig works primarily for the Wehrmacht and repair of telecommunication equipment.

1945 - Immediately after the war, the demand for repair work was very great. Max Grundig built the first two Grundig appliances: the Tubatest tube tester and the Novatest testing device.

1947 - Start the sale of a kit radio, the Heinzelmann. The unit is the basis of success, sold more than 15,000 pieces.

1950 - Very high frequency (VHF) is introduced to Germany and places new demands on the industry. Grundig launches the 380 W on the market.

1952 - The first television channel starts up in Germany. After intensive research, Grundig launches the FS 080 onto the market. In the same year the first portable tape recorder Reporter 500 L is created.

1956 - After a lot of radio produced with progrssively high performances was produced the Concert Radio 5080 equipped with an equaliser, which has five controls and a visual display.

1965 - A new factory is established in Braga, Portugal. The Satellit 205 is one of many appliances in the Satellit series. This product marks the beginning of Grundig production of high-quality global receivers.

1970 - The Audiorama 7000 Hi-fi was produced, it has twelve dynamic speaker systems in one speaker.

1976 - The Reel Tape Recorder TS 1000 is equipped for semi-professional use.

1980 - The slim-line Hi-fi Tuner ST 6000 and the Monolith Hi-fi Dynamic Flat Top Antenna, which has 22 speaker systems, are two particularly popular appliances in the new hi-fi range.

1984 - After severe drop in sales Philips increased its stake in Grundig 31.6 percent and takes over the corporate management.

1997 - Philips pulls out of its involvement with Grundig.

2003 - The company files for bankruptcy.

2008 - Turkey's Koç Holding took full ownership of Grundig Multimedia B.V., the parent company of Grundig Intermedia GmbH in Nuremberg.

Courtesy of: Grundig

 

MAIN FEATURES

Year of production: 1952/53
Superheterodyne IF 468/10700
8 Circuiti AM
9 Circuiti FM

Wavebands:
LW, MW, SW, FM

Loudspeakers:
2 elliptical wideband
1 Electrostatic Tweeter

Dimensions (LHD): 660 x 414 x 275 mm / 26 x 16.3 x 10.8 inch
Net weight: 13.5 kg / 29 lb 11.8 oz

7 Tubes: EF85 EC92 ECH81 EAF42 EM34 EABC80 EL12

Grundig 3012

TONE CONTROL WITH LEVEL INDICATION

The tones control system is very efficient. Above the large tone control knobs there is a band that lights up gradually indicating the emphasis on the band on which it acts.
Interesting the high-tone control knob linked to two thin ropes. One of them is for the position indicator of the control itself, whereas the other changes the position of the ferrite in the MF transformers modifying the inclination of the transformer’s curve.
By doing so high tones were attenuated/accentuated even before getting to the BF stage. Tone control was usually put into effect with the potentiometer on the voltage amplifier stage

AERIALS

Inside the cabinet there is a dipole for FM reception.
One arm of the dipole is also used for receiving AM bands.
Listening FM band the reception sensitivity with internal aerials is very good.
For AM bands using an external antenna the sensitivity is good.
The picture shows the dipole fixed internally to the cabinet.

Grundig 3012

Grundig 3012

TUNING CONTROL

For both AM and FM bands the tuning system is unique.
The single variable capacitor is divided into 4 sections, two for AM and two for FM.
Each section is used respectively for the RF amplifier and the oscillator.
The mechanism is very simple and robust. It has the disadvantage of being a unique command for all bands.

TUNING INDICATOR

The magic eye has of course been replaced.

Grundig 3012

LOUDSPEAKERS

There are three speakers, but what matters most about this unit is their arrangement.
They are arranged to reproduce the sound as if it came from a point source, like in a single speaker.
The acoustic result is extremely enjoyable, and the rebuilding of the scene is realistic. You find the depth and the space.
The bass is very deep and fast, and the acute are balanced, thanks to the help of the central electrostatic tweeter.
I do not understand why this configuration was not re-proposed even in the most expensive models. Maybe just to keep costs down.

CONTROL PANEL

Grundig 3012

Starting from the left, there are two coaxial knobs.
The most exterior and smaller, is that of the volume.
The internal knob, the larger one, is the control of acute tones.
Above this knob, the larger one, is the control of acute tones, and a little window is visible indicating its position.

We also find the power off buttons, which input from the record player, FM, Short Medium and Long Waves.
There are also two coaxial knobs. The most exterior and smallest, is the tuning knob.
The internal and largest, is the low tone control knob.
Above this, a little window is visible indicating its position.

Grundig 3012

REAR SIDE

Output for external speakers.
Socket for recorder (tonbandgerat).
Turntable input (Tonabnehmer)
AM and FM aerial inputs and ground socket.

RESTORING WORKS

THE USUAL AMAZING LAST IMAGE
Grundig 3012
Grundig 4085 german radios - en

Grundig 4085 – en

Grundig 4085

GRUNDIG 4085

As for the Grundig 4095 I would like to tell a brief history this cabinet design.
Manufactured in 1956, the 4085 radio set was a Grundig mid-high grade equipment. What distinguished it from other high class Grundig radios was its special design shaped like a stylized Lyre.

Grundig 4085To Greek mythology, the inventor of the lyre was Hermes, who built it with a tortoise shell and a sheep gut to donate it to Apollo, who then gave it as a gift to his son Orpheus. In classical era, the lyre was linked to Dionysus and represented ecstasy and celebration. The lyre probably originates from northeastern Africa.
The design was used in some rare devices previous very daring.Grundig 4085
An interesting example is the Tonfunk (in fact subsequently absorbed by Grundig) Violetta Lyra 1955, visible in the image on the right.

In my opinion the 4085 and 4095 are the big capacity of synthesis of Grundig designers.
They design evoke the sinuous forms of Lira while maintaining clean lines, which they did at the time, growing old hit most other radios on the market.

 

Some stylistic solutions typical of this model were then adopted also by many other manufacturers for a long time.
For instance, the wooden frontal fillets designed to protect the speakers will be used in appliances and speakers until the '70s.
Even the golden color of the cabinet along with the four-sided and sharp lines will denote the most of the forthcoming production as a leitmotif.

Produced in 1956/57, the Grundig 4085 was the upper-mid range device with the most innovative look ever created by this brand.
In that same period, Grundig produced another line, the 4095, which was slightly larger and had a push-pull output stage.
The two devices, however similar, had unique defining characteristics and uses. One is not better than the other as each device has it's own key feature.
The 4095 was privileged with greater power and is better adapted to filling larger environments with sound.
The 4085 was given a Class A output stage, it has a more refined and warmer sound even if it is less powerful.
The EL84 is considered to be one of the best musical tubes ever produced. In fact, it is still used today in high-end amplifiers.
The tone controls are inserted into the feedback circuit so that distortions are further reduced.
Alnico wide-band loudspeakers are very efficient, requiring little power to reach elevated levels of sound pressure.
Furthermore, the warmth of this sound is that typical of very fast wide-band loudspeakers
Today, this type of wide-band loudspeaker is increasingly used in the production of high efficiency horn loudspeakers.
Another musical device with an incredibly modern look.

Grundig 4085

BLUETOOTH
Bluetooth receiver embed

READ MORE >

MULTI PLATFORM CONNECTION
Each radio is equipped with a cable for connection to any digital device.

READ MORE >

TUBESOUND IMPROVEMENT

- Bluetooth receiver embed - The unit is equipped with a BLUETOOTH receiver powered directly by the receiver power supply. This makes it possible to control the amplifier from any external digital device as an IPAD, a Smartphone, or a sophisticated multimedia station. So you can hear your preferred web station or your lossesless file without cables on the room. Wireless Receiver can be equipped upon requests.
- Multi Platform Connection - A customized adaptation cable to connect any digital device as Iphone, Smartphone, Laptop, CD Player etc. will be provided with this radio. This special cable suits the different impedances between the modern equipment and the receiver. Furthermore the two stereo channels flow into one without increasing the load to the input unit.

HISTORY

1930 - At 22 years old Max Grundig begin a radio repair business.

1939 - The II world War start. Grundig works primarily for the Wehrmacht and repair of telecommunication equipment.

1945 - Immediately after the war, the demand for repair work was very great. Max Grundig built the first two Grundig appliances: the Tubatest tube tester and the Novatest testing device.

1947 - Start the sale of a kit radio, the Heinzelmann. The unit is the basis of success, sold more than 15,000 pieces.

1950 - Very high frequency (VHF) is introduced to Germany and places new demands on the industry. Grundig launches the 380 W on the market.

1952 - The first television channel starts up in Germany. After intensive research, Grundig launches the FS 080 onto the market. In the same year the first portable tape recorder Reporter 500 L is created.

1956 - After a lot of radio produced with progrssively high performances was produced the Concert Radio 5080 equipped with an equaliser, which has five controls and a visual display.

1965 - A new factory is established in Braga, Portugal. The Satellit 205 is one of many appliances in the Satellit series. This product marks the beginning of Grundig production of high-quality global receivers.

1970 - The Audiorama 7000 Hi-fi was produced, it has twelve dynamic speaker systems in one speaker.

1976 - The Reel Tape Recorder TS 1000 is equipped for semi-professional use.

1980 - The slim-line Hi-fi Tuner ST 6000 and the Monolith Hi-fi Dynamic Flat Top Antenna, which has 22 speaker systems, are two particularly popular appliances in the new hi-fi range.

1984 - After severe drop in sales Philips increased its stake in Grundig 31.6 percent and takes over the corporate management.

1997 - Philips pulls out of its involvement with Grundig.

2003 - The company files for bankruptcy.

2008 - Turkey's Koç Holding took full ownership of Grundig Multimedia B.V., the parent company of Grundig Intermedia GmbH in Nuremberg.

Courtesy of: Grundig

MAIN FEATURES

Year of production: 1956/57
Superheterodyne IF 460/10700
8 AM Circuits
13 FM Circuits
Wavebands:
LW, MW, SW, FM
Operating voltage (CA) 110; 125; 160; 220 Volts
3 Wideband loudspeakers
Dimensions (LHD): 25.6 x 14.2 x 12.2 inch
Net weight: 32 lb 9.6 oz
7 Tubes:
ECC85 ECH81 EBF89 EAA91 EM34 ECC81 EL84

Rotating ferrite aerial for AM bands

Grundig 4085

EQUALIZER WITH LEVEL INDICATION

The tones control system is a jewel. The device is equipped with a 5-band equalizer.
A red thread mark the position of the potentiometers and draws the chosen equalization curve.
Each knob is nicely associated with the musical instruments on which it acts.

Bass - Kettledrum, Tuba
Middle-Bass - Bassoon, Horn
Mid- Clarinet, Saxophone
Mid-High - Cornet, Violin
High - Trumpet, Flute

The visual effect is pleasant and easy to understand.

AERIALS

Inside the cabinet there is a dipole for FM reception and a ferrite rotating aerial for AM reception.
Ferrite aerial can be rotated from the outside to achieve a perfect tuning of the device in the AM.
In this picture see the rotation mechanism and the position indicator of the aerial.
The reception sensitivity with internal aerials is very good. This unit was in fact produced in a period when there were not many radio stations and those available fairly apart from each others.
Using an external aerial sensitivity is further increased.

Grundig 4085

SEPARATE CONTROL TUNING BETWEEN AM AND FM

The tuning system is another gem.
The unit is equipped with mechanisms for keeping separate the AM and FM bands.
The tuning knob is single but a selector switch commutes into cable systems (all in steel) and pulleys separated depending on the band.
The movement is transferred to both mechanisms with a system of pulleys and separated gears.

TUNING INDICATOR

The tuning indicator has of course been replaced.

Grundig 4085

LOUDSPEAKERS

There are three wideband loudspeakers.
They are extremely efficient.
A loudspeaker is placed on both sides for the 3D reproduction.

Incredibly amazing sound!

CONTROL PANEL

Grundig 4085

On the left you can find the volume control (with incorporated loudness) and the ferrite antenna’s rotation control.
The AM scale for short, medium, long an FM waves.
On the lower left side there are the OFF, tape recorder, record player, AM antenna

The five equalizer knobs, the long, medium, short and FM waves.
Symmetrically to the AM aerial indicator we find the tuning indicator.
Lastly the tuning knob is supported by a big fly-wheel which creates a pleasant movement.

Grundig 4085

REAR SIDE

Output for external speakers.
Socket for recorder (tonbandgerat).
Turntable input (Tonabnehmer)
AM and FM aerial inputs and ground socket.

RESTORING WORKS

THE USUAL AMAZING LAST IMAGE
Grundig 4085
Grundig Stereomeister 300 german radios - en

Grundig Stereomeister 300 – en

Grundig Stereomeister 300

GRUNDIG STEREOMEISTER 300

The following model, the Stereomeister 300 has a transistor FM converter, whereas in the immediately following models the FM valve converter stage has been reinserted.
This device is therefore remarkable both for its wonderful aesthetics designed by Grundig in those years and for the extremely modern features only to be found in later models.

The final stage is a class AB Push-Pull with a feedback circuit for response linearization and distortion decrease.
The response is indeed generally balanced and with a powerful push on bass regardless its small output transformers.
By employing efficient diffusers the power is more than appropriate even if you want to play the in big spaces.

I personally recommed to play this device at 3/5 of its maximum volume.
The response curve changes according to the position of the potentiometer that controls and corrects the volume.
The shift from the section with volume correction to the one with no correction is fairly audible, that is the reason why it is preferable to maintain the volume under the said limit.
No need to say that if you want to take full advantage of the power of this device ... you can turn the volume knob as much as you want.

Following Grundig’s tradition, the radio section is extremely stable, sensitive and free from ground noises.
Even the final stage is silent and buzzless.

Sound high quality, the stereo decoder and the absence of inner loudspeaker (giving the device a rather modern shape) make of this device a great collector’s piece.

After the Stereomeister series Grundig as well as other big german brands started to save on and “optimize” their projects and unfortunately their quality began to decrease and “more modern” quality criteria started to take over.

This device is one of the rare and few Grundig Hi-Fi tube stereophonic receivers

Grundig Stereomeister 300

BLUETOOTH
Bluetooth receiver embed

READ MORE >

MULTI PLATFORM CONNECTION
Each radio is equipped with a cable for connection to any digital device.

READ MORE >

TUBESOUND IMPROVEMENT

- Bluetooth receiver embed - The unit is equipped with a BLUETOOTH receiver powered directly by the receiver power supply. This makes it possible to control the amplifier from any external digital device as an IPAD, a Smartphone, or a sophisticated multimedia station. So you can hear your preferred web station or your lossesless file without cables on the room. Wireless Receiver can be equipped upon requests.
- Multi Platform Connection - A customized adaptation cable to connect any digital device as Iphone, Smartphone, Laptop, CD Player etc. will be provided with this radio. This special cable suits the different impedances between the modern equipment and the receiver. Furthermore the two stereo channels flow into one without increasing the load to the input unit.

HISTORY

1930 - At 22 years old Max Grundig begin a radio repair business.

1939 - The II world War start. Grundig works primarily for the Wehrmacht and repair of telecommunication equipment.

1945 - Immediately after the war, the demand for repair work was very great. Max Grundig built the first two Grundig appliances: the Tubatest tube tester and the Novatest testing device.

1947 - Start the sale of a kit radio, the Heinzelmann. The unit is the basis of success, sold more than 15,000 pieces.

1950 - Very high frequency (VHF) is introduced to Germany and places new demands on the industry. Grundig launches the 380 W on the market.

1952 - The first television channel starts up in Germany. After intensive research, Grundig launches the FS 080 onto the market. In the same year the first portable tape recorder Reporter 500 L is created.

1956 - After a lot of radio produced with progrssively high performances was produced the Concert Radio 5080 equipped with an equaliser, which has five controls and a visual display.

1965 - A new factory is established in Braga, Portugal. The Satellit 205 is one of many appliances in the Satellit series. This product marks the beginning of Grundig production of high-quality global receivers.

1970 - The Audiorama 7000 Hi-fi was produced, it has twelve dynamic speaker systems in one speaker.

1976 - The Reel Tape Recorder TS 1000 is equipped for semi-professional use.

1980 - The slim-line Hi-fi Tuner ST 6000 and the Monolith Hi-fi Dynamic Flat Top Antenna, which has 22 speaker systems, are two particularly popular appliances in the new hi-fi range.

1984 - After severe drop in sales Philips increased its stake in Grundig 31.6 percent and takes over the corporate management.

1997 - Philips pulls out of its involvement with Grundig.

2003 - The company files for bankruptcy.

2008 - Turkey's Koç Holding took full ownership of Grundig Multimedia B.V., the parent company of Grundig Intermedia GmbH in Nuremberg.

Courtesy of: Grundig

MAIN FEATURES

Year of production: 1967
Superheterodyne IF 468/10700
6 AM Circuits
10 FM Circuits
Wavebands:
Medium Waves (OM),  Long Waves (OL), Short waves (OC), FM (UKW)
Dimensions (LHD): 26 x 17.3 x 11.4 inch
Net weight: 36 lb 5.5 oz
9 Tubes:
ECC85 ECH81 EAF801 ECC83 EM87 ECC81 EC92 ECLL800 ECLL800
Decoder stereo
Ferrite Aerial

Grundig Stereomeister 300

SEPARATE LOUDSPEAKERS

The original loudspeakers, that can be buyes separately, are composed each one of a double Mid-Woofer loudspeaker and coaxial tweeters. They create a not that brilliant yet balanced sound.
The Stereomeister has 7,5 + 7,5 W output in ultralinear configuration but it can drive big loudspeakers without problems.
In the main gallery you can see the Stereomeister with a couple if AR 98 LS-U.

STEREO DECODER

The radio is equipped with a tube Stereo-Decoder, that means it is a real stereo, not like most other vintage radio that used to be mono in the radio FM and stereo sections only because of the double final section.
To be clear, on the other radios the record player could be played in stereo, but the radio only in mono.

Grundig Stereomeister 300

TUBES

The tubes are ECC85 ECH81 EAF801 ECC83 EM87 ECC81 EC92 ECLL800 ECLL800.
The 2 ECLL800 are like of a Push Pull of 4 EL95 with their own preamplifier stages built inside.

AERIALS

Inside the cabinet there is a dipole for FM and an orientable ferrite antenna for AM reception.
The receiving sensitivity with internal antennas is very good.

Grundig Stereomeister 300

SEPARATE CONTROL TUNING BETWEEN AM AND FM

The tuning system is another gem.
The unit is equipped with mechanisms for keeping separate the AM bands by each of the other two FM bands.
The tuning knob is single but a selector switch commutes into cable systems (all in steel) and pulleys separated depending on the band.

TUNING INDICATOR

The tuning indicator has of course been replaced.

Grundig Stereomeister 300

CONTROL PANEL

Grundig Stereomeister 300

Inside the black line ... we find the bass control under the magic eye (tuning indicator), the treble control and the volume control with loudness built-in and coaxially the balance control.
Continuing we find the record player button, the Mono/Stereo switch, LW, MW, SW and FM knobs.
On the right side the power switch.
The stereo indicator is on the left.
Under the magic eye that indicates the perfect tuning of each station.
To the right there is the AM main display for Long Wave Medium and Court bands, and the FM display.
Finally, there is the tuning knob.
The movement of the tuning knob is very pleasant being supported by a large flywheel.

REAR SIDE

Output for external speakers.
Socket for recorder (tonbandgerat).
Turntable input (Tonabnehmer)
AM and FM aerial inputs and ground socket.

THE USUAL AMAZING LAST IMAGE
Grundig Stereomeister 300
Grundig Stereomeister 15 german radios - en

Grundig Stereomeister 15 – en

Grundig Stereomeister 15

GRUNDIG STEREOMEISTER 15

Despite the look futuristic, for that time, the Stereomeister 15 use only tube circuits.
In this device the original decoder has been replaced with a modern decoder specifically designed. This decoder has a better separation and a lower noise rate than the original one.

The most interesting feature of this model is that the output transformers are bigger than in later models.
I think that also the German industry progressively saved money in their projects.
Transformers larger means less possibility of saturation, deeper bass and lower distortion.
Like others Stereomeister the final stage is a class AB Push-Pull with a feedback circuit for response linearization and distortion decrease.
By employing efficient diffusers the power is more than appropriate even if you want to play the in big spaces.

The response curve changes according to the position of the potentiometer that controls and corrects the volume.
The shift from the section with volume correction to the one with no correction is fairly audible, that is the reason why it is preferable to maintain the volume at a certain level.

The unit is equipped with variable control of the Hall effect.
This refinement has been implemented in order to obtain a depth similar to what you have listening music in a very large room, such as a cathedral.
It's achieved by delaying the sound than the original and remix both.
I discourages the use of the Hall feature. The effect can be pleasant but it is a distortion of the original informations.

Following Grundig’s tradition, the radio section is extremely stable, sensitive and free from ground noises.
Even the final stage is silent and buzzless.

Sound high quality, the stereo decoder and the absence of inner loudspeaker (giving the device a rather modern shape) make of this device a great collector’s piece.

Produced in 1964 the Stereomeister 15 belongs to the Grundig highest class tube radio.

Grundig Stereomeister 15

BLUETOOTH
Bluetooth receiver embed

READ MORE >

MULTI PLATFORM CONNECTION
Each radio is equipped with a cable for connection to any digital device.

READ MORE >

TUBESOUND IMPROVEMENT

- Bluetooth receiver embed - The unit is equipped with a BLUETOOTH receiver powered directly by the receiver power supply. This makes it possible to control the amplifier from any external digital device as an IPAD, a Smartphone, or a sophisticated multimedia station. So you can hear your preferred web station or your lossesless file without cables on the room. Wireless Receiver can be equipped upon requests.
- Multi Platform Connection - A customized adaptation cable to connect any digital device as Iphone, Smartphone, Laptop, CD Player etc. will be provided with this radio. This special cable suits the different impedances between the modern equipment and the receiver. Furthermore the two stereo channels flow into one without increasing the load to the input unit.

HISTORY

1930 - At 22 years old Max Grundig begin a radio repair business.

1939 - The II world War start. Grundig works primarily for the Wehrmacht and repair of telecommunication equipment.

1945 - Immediately after the war, the demand for repair work was very great. Max Grundig built the first two Grundig appliances: the Tubatest tube tester and the Novatest testing device.

1947 - Start the sale of a kit radio, the Heinzelmann. The unit is the basis of success, sold more than 15,000 pieces.

1950 - Very high frequency (VHF) is introduced to Germany and places new demands on the industry. Grundig launches the 380 W on the market.

1952 - The first television channel starts up in Germany. After intensive research, Grundig launches the FS 080 onto the market. In the same year the first portable tape recorder Reporter 500 L is created.

1956 - After a lot of radio produced with progrssively high performances was produced the Concert Radio 5080 equipped with an equaliser, which has five controls and a visual display.

1965 - A new factory is established in Braga, Portugal. The Satellit 205 is one of many appliances in the Satellit series. This product marks the beginning of Grundig production of high-quality global receivers.

1970 - The Audiorama 7000 Hi-fi was produced, it has twelve dynamic speaker systems in one speaker.

1976 - The Reel Tape Recorder TS 1000 is equipped for semi-professional use.

1980 - The slim-line Hi-fi Tuner ST 6000 and the Monolith Hi-fi Dynamic Flat Top Antenna, which has 22 speaker systems, are two particularly popular appliances in the new hi-fi range.

1984 - After severe drop in sales Philips increased its stake in Grundig 31.6 percent and takes over the corporate management.

1997 - Philips pulls out of its involvement with Grundig.

2003 - The company files for bankruptcy.

2008 - Turkey's Koç Holding took full ownership of Grundig Multimedia B.V., the parent company of Grundig Intermedia GmbH in Nuremberg.

Courtesy of: Grundig

MAIN FEATURES

Year of production: 1964
Superheterodyne IF 468/10700
6 AM Circuits
11 FM Circuits
Wavebands:
Medium Waves (OM),  Long Waves (OL), Short waves (OC), FM (UKW)
Dimensions (LHD): 22.8 x 9.1 x 8.7 inch
Net weight: 28 lb 10.1 oz
8 Tubes:
ECC85, ECH81, EAF801, 2 x ECC808, EM87, 2 x ECLL800
Decoder stereo
Ferrite Aerial

Grundig Stereomeister 15

SEPARATE LOUDSPEAKERS

This device is not equipped with speakers placed inside the cabinet as any modern tuner-amplifier
In the gallery you can see the Stereomeister with a couple of Grundig 850 Professional

STEREO DECODER

The radio is equipped with a Stereo-Decoder purposely projected and tested for it.

That means it is a real stereo, not like most other vintage radio that used to be mono in the radio FM and stereo sections only because of the double final section.

Grundig Stereomeister 15
Grundig Stereomeister 15

TUBES

The tubes are ECC85 ECH81 EAF801 ECC808 EM87 ECC808 ECLL800 ECLL800.
The 2 ECLL800 are like of a Push Pull of 4 EL95 with their own preamplifier stages built inside.

AERIALS

Inside the cabinet there is a dipole for FM and an orientable ferrite antenna for AM reception.
The receiving sensitivity with internal antennas is very good.

Grundig Stereomeister 15
Grundig Stereomeister 15

SEPARATE CONTROL TUNING BETWEEN AM AND FM

The tuning system is another gem.
The unit is equipped with mechanisms for keeping separate the AM bands by each of the other two FM bands.
The tuning knob is single but a selector switch commutes into cable systems (all in steel) and pulleys separated depending on the band.

Grundig Stereomeister 15
Grundig Stereomeister 15

INDICATORS

 

 

 

The stereo FM station indicator

Grundig Stereomeister 15

The tuning indicator has of course been replaced.

CONTROL PANEL

Grundig Stereomeister 15

From the left we find the Bass emphasis switch, the Stereo/Mono switch, the bands selectors, FM, SW, MW, LW, Phono and the OFF switch.
After we find the volume control with loudness built-in, the Bass control, the Treble control, the balance control and coaxially the Hall Control.
On the upper side we find the magic eye that indicates the perfect tuning of each station, the stereo indicator, the AM main display for Long Wave Medium and Court bands, and the FM display.
Finally, there is the tuning knob.
The movement of the tuning knob is very pleasant being supported by a large flywheel.

Grundig Stereomeister 15

REAR SIDE

Output for external speakers.
Socket for recorder (tonbandgerat).
Turntable input (Tonabnehmer)
AM and FM aerial inputs and ground socket.

RESTORING WORKS

THE USUAL AMAZING LAST IMAGE
Grundig Stereomeister 15