ready for sale - fr Archives

Grundig 5005W Enhanced- fr

21st février 202421st février 2024
par giovanni

Also this reviews will be accompanied by a section with graphs of technical measures of the most important parameters.
There is no such thing anywhere else, as far as I know. Not even the manufacturers themselves detailed the technical features of their own devices at this level.
This new section has been developed for an objective comparison of different devices.
In order to avoid interpreting the measurements incorrectly, it is very important to read the warnings carefully the first time.

The Grundig 5005W was the progenitor of a new line of Grundig radios model. The 5005W line will be followed, with some modifications, by the 5010, the 4010 and other less and less prestigious series.
From the previous top of the range model, the Spitzen-Super UKW 495W inherits the beautiful full-range speakers, one of which is equipped with a coaxial electrostatic tweeter.
There are also many mechanical elements in common with the 495W, the chassis has a very similar setup as does the high frequency group and the variable capacitor, the keyboard and much more. The tuner section is instead more elaborate, sensitive and selective and the low frequency section has completely changed.

The FM converter stage is interesting. Unlike the usual stages composed of the classic ECC85 double triode (specially designed for this), an ECF12 pentode/triode was used on the 5005W. The pentode section is used as an antenna amplifier and is very quiet for a pentode. The triode acts as an AF oscillator. There is then a further medium frequency amplifier pentode, an EF15, before entering the grid of the ECH11 amplifier/mixer.

The low frequency stage is an excellent example of a Push-Pull amplifier, with two EL41s, the most powerful compact tubes at the time.
The phase inverter stage consists of a double triode Ecc40 in "Anode follower" configuration. Also in this case the characteristics of the tube are important. To have correct driving of the two final EL41s, which work in Push-Pull, one on the positive half-waves and one on the negative half-waves, it is advisable to check the signal present on the two grids of the final pentodes. The configuration of the inverter might make you think that the two triodes of the ECC40 work symmetrically, but this is not the case. The first triode works as a preamplifier while the second has only the purpose of inverting the signal, indeed, it has a slightly negative amplification. The advantages of this type of inverter are the high voltage available at the output to effectively drive the finals and the high rate of internal feedback which guarantees a high linearity of response compared to other types of cheaper inverters.

The counter-reaction is moderate, and affects the response curve. The resulting sound is very open, with great presence in the mid and high tones and sufficiently damped bass.
The cabinet is very robust and free of vibrations and resonances.

The speakers:
There are three speakers, all on the front.
These are two full-range cones of 25 cm each and a coaxial electrostatic tweeter which is inserted when the TA button or the UKW/FST button is pressed.
The advantage of having two separate full-range speakers is that for the same amount of air moved, the cones and the voice coil support are much lighter to move, so each speaker is much faster and more responsive. All this translates into more responsive and muffled bass and without serious resonances.
The die-cast baskets ensure the mechanical rigidity of the speaker itself, therefore again reduction of resonances and greater efficiency of the transducer (no force is dissipated in the vibration of the basket).
The entire frequency range is sent to the full-range speakers and the high part is cut mechanically.

The front canvas covering the speakers is never completely transparent from an acoustic point of view.
For this reason the only way to obtain maximum performance from the appliance is to eliminate it.
We can build a false frame in which the original canvas has been installed. This frame attaches to the speaker panel with magnets.
In this way it is possible to detach it when you want to listen to music with maximum transparency and put it back in its place when the radio is at rest to protect the speakers from dust and to restore the original aesthetic appearance of the device.

All this translates into exciting dynamics, brilliance of sound, lack of canvas oscillations in the presence of low frequencies, making listening to this beautiful device very realistic and pleasant.

The first song is the famous Moanin' written and arranged by Charles Mingus. There are actually two different jazz classics called "Moanin'." Both are blues-based songs with gospel music influences. Both evoke, in different ways, a sense of pain but also a sense of exuberant life.
The song was recorded in 1959, the group members included four sax players, John Handy, Jackie McLean, Booker Ervin and Pepper Adams, two trombones, Jimmy Knepper and Willie Dennis, Horace Parlan on piano, Dannie Richmond on drums and Mingus on bass .
The original lyrics of Moanin', by Jon Hendricks and known on the popular album by Art Blakey and the Jazz Messengers, begin like this:

Every Mornin' finds me moanin'I'm alone and crying the bluesI'm so tired of paying the duesEverybody knows I'm moanin'

Every evening I am moanin''Cause of all I the trouble I seeLife's a loosing gamble to meEverybody knows I moanin'

Lord, I spend many a days and nights alone with my griefAnd I pray, really and truly praySomebody will come and bring me relief

The second song is "Smooth Operator" published by Sade in 1984. It was the song that made Sade famous in the USA. The song appears on her debut album, Diamond Life. "Smooth Operator" is about a charming con man who seduces high society women into getting money from them and breaking their hearts.
Despite the cold-hearted lyrics, this song is also often used in cinema in scenes of a romantic encounter.
An interesting curiosity: the music producer Robert Millar recorded the song for a demo to present to the record company to obtain a contract. Epic Records liked it so much that he released it exactly like that, without having it recorded again in the studio.

The third song is Walk On The Wild Side by Lou Reed. The song is very well known. From a musical point of view it is rather simple, supported by a bass line with repetitive "Du du du" choruses and an interesting baritone saxophone solo. The text, however, is the most provocative one could have imagined at the time. It talks about the gender world and male prostitution. Each verse introduces a new character, Holly (Holly Woodlawn), Candy (Candy Darling), Little Joe (Joe Dallesandero), Sugar Plum Fairy (Joe Campbell), and Jackie (Jackie Curtis). All cronies of the Andy Warhol Factory, as well as Lou. A cross-section of the Big Apple's underground.

The fourth song is Yakety Sax written by saxophonist Boots Randolph and guitarist James Q. "Spider" Rich. The song became famous as the closing song on The Benny Hill Show. It is a piece of "instrumental novelty song", a light piece of music which is usually, but not in this case (instrumental), accompanied by a fun and topical text. The song is inspired by Yakety Yak recorded in 1958 by the Coasters from which it took its title. Yakety Yak is a slang expression that means to talk for a long time for nothing, to chat in vain.

And finally, to really put the device to the test, the final part of the drum solo from Led Zeppelin's Moby Dick. In this piece the skill of John Henry "Bonzo" Bonham is expressed at the highest levels. Artistic heir to Ginger Baker, Bonham had developed spectacular right hand/left hand/foot sequences, which were particularly exciting for him in live concerts. The piece is really difficult and requires great strength, and probably also great anger. Bonham's life was filled with fights, trashed hotel rooms, drinking, orgies, except when he was at home in his cottage in Worcestershire. Bonham died at the age of 32 after choking on his own vomit one drunken evening.

BLUETOOTH

Bluetooth receiver embedn

CONNESSIONE A DISPOSITIVI DIGITALI

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

– 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.

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

Year of production: 1951
Superheterodyne IF 468/10700
9 AM circuits
9 FM circuits

Wavebands:
Long wave: 150 - 310 KHz
Medium wave 1: 515 - 950 KHz
Medium wave 2: 950 - 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:
2 x 24 cm Fullrange
1 x coaxial electrostatic tweeter

Dimensions (LHD): 706 x 396 x 288 mm / 27.8 x 15.6 x 11.3 inch
Net weight: 19.5 kg / 42 lb 15.2 oz

10 tubes: ECF12 EF15 ECH11 EBF15 EM71 EAA11 EF11 ECC40 2x EL41

MEASURED TECHNICAL FEATURES

IMPORTANT REMARK
(to be read carefully at least the first time)

The following measures have been carried out in order to compare, from an electrical point of view, the devices that will be reviewed on this site. It is not possible to make comparisons with measurements made by other laboratories on different devices. The instrumentation and measurement conditions are probably very different.
The instrumentation used for the measurements is obsolete and unprofessional. We believe that more precise instrumentation is not necessary due to the tolerances of the human auditory system. Distinguishing a distortion of 1% from one of 1.1% or 1.001% only makes sense from the electrical point of view. Probably no one can hear the difference by ear. Only a child and very few lucky people can perceive the difference between a flat response curve up to 16 KHz and one up to 20 kHz.
The perception of sound depends on many factors, namely the age of the listener, the listening environment, the musical genre that is being reproduced, the listener's expectations, his or her listening habits and knowledge and many other factors, besides of course the quality of the other devices. Therefore, there is no direct and unique relationship between the results of the measurements made and the pleasantness of listening to a specific device.

BANDWIDTH

Normally the measurement of the bandwidth is done on a resistive load. Therefore, the deformation caused by the loudspeakers' inductive load and the effect of the mechanical resonance of the speakers themselves on the feedback circuit are not considered. The effects are by no means negligible, the measurements carried out on a purely resistive load are always very linear but they don't coincide with the real frequency response.

On the other hand, this response curve was measured on an inductive laod, that is, with its own loudspeakers.
The frequency response measurements were made with a sinusoidal generator and a Wandel & Goltermann WM – 20 level meter.
You can see the actual frequency response on the vobulator' screen.

brionvega - fr

Brionvega RR126 Alexa – fr

30th mai 202321st septembre 2023
par giovanni

Cette page est le fruit d'une demande excentrique et courageuse qui nous est adressée par un client particulièrement exigeant.

On nous a demandé de configurer un radiophonographe Brionvega RR126 à gérer par commandes vocales ALEXA.
Nous avons étudié le problème et apporté les modifications nécessaires et inséré des actionneurs pour que ce RR126 fonctionne avec la commande vocale.
Comme vous pouvez le voir dans la vidéo, cet appareil s'allume et s'éteint, ajuste le volume, choisit des chansons avec des commandes vocales, dans ce cas implémentées par Alexa.
Bien que testée avec ALEXA, cette version spéciale du RR126 fonctionne avec n'importe quel assistant vocal, que ce soit Siri sur Apple HomePod, Google Assistant sur Nest mini et bien sûr Amazon Alexa sur Echo Dot !
Et bien sûr, il fonctionne également avec des commandes traditionnelles, comme un Brionvega RR126 normal.

german radios - fr

Saba Meersburg W4 – fr

27th mai 202327th mai 2023
par giovanni

The Meersburg is one of the most prestigious models produced by Saba. The version that we present in this review has been modified in order to maximize the performance of this device.

The low frequency stage is an excellent example of a class A amplifier, with an EL84 with well known sonic characteristics.
The feedback is moderate, so the resulting sound is very open, with great presence in the mids and trebles and sufficiently damped bass.
The cabinet is very robust and free from vibrations and resonances.
There are no equalizers or filter circuits that could introduce distortion or blurring of the sound.
In short, the first models of Saba Meersburg represent an ideal basis for an upgrade.

The weak point is represented by the loudspeaker system, and it is precisely the section on which we have worked around.

The speakers:
The larger of the two, a huge SABA 1675U10 with TIGGES Permadyn magnet in Alnico measures 35 x 24cm.
It is a loudspeaker built starting from 1953, with a magnet with a flux density of 8000 Gauss, an impedance of 4.1 Ohm and a voice coil of about 25 mm.
It has a frequency response that extends from 55 to 10,500Hz within +/-3dB.
The entire frequency range is sent to this loudspeaker and the high part is cut mechanically.
The cone, despite being very large is relatively light, this property allows you to have bass that are very ready, really powerful and without tails.

In our opinion, the original 5330F15 electrostatic tweeter is too inefficient compared to the large oval mid-woofer and above all it has a too high cutoff frequency. It begins to feel starting from 9600 Hz, and at a level that is too low anyway. It works therefore as a supertweeter rather than a tweeter.
This loudspeaker is placed in front of the full-range, almost in the centre. This arrangement (if it were placed right in the centre) would in our opinion be the ideal arrangement, see Goodmans Triaxiom, Altec Lansing Duplex and so on, because it allows very precise focusing of the sound image. However, since the mid-high frequencies emitted by the full range are concentrated right in the central part of the cone, the treble is mechanically hindered by the electrostatic loudspeaker placed in front.
The end result is a sound that tends towards gloom and with some unpleasant reflections as the electrostatic tweeter is not placed exactly coaxially with the mid-woofer.

We fixed these issues with two essential changes:
1 - Replacement and correct placement of the original tweeter with a Saba 5238U8 cone tweeter
2 - Made the frame with the front canvas removable

1) The Saba 5238U8 cone tweeter has a diameter of 112 mm, is equipped with a 7500 Gauss magnet, a very light 12 mm voice coil and an impedance of 5.1 Ohm.
The frequency response starts already regular from 1500 Hz and rises up to about 13 kHz, and then returns to decrease towards 20kHz.
Remember that all acoustic musical instruments that reach higher are the cymbals (Cymbals) that reach just over 10 kHz.
The efficiency of the tweeter and its low cut-off frequency compensate for the mids and trebles generated by the central part of the rear mid-woofer which are absorbed by the shadow cone of the tweeter itself.
The tweeter is positioned exactly in the center of the mid-woofer, in a perfectly coaxial position, thus avoiding the annoying reflections generated by the misalignment of the original electrostatic tweeter, maintaining the invaluable advantages of coaxial speakers.
Finally, the crescendo response curve up to 13 kHz means that the treble is really very bright.

2) The front canvas covering the speakers is never completely acoustically transparent.
For this reason, the only way to obtain maximum performance from the appliance is to eliminate it.
We built a dummy frame into which the original canvas was installed. This frame attaches to the speaker panel with magnets.
In this way it is possible to detach it when you want to listen to music with maximum transparency and put it back in its place when the radio is at rest to protect the loudspeakers from dust and to restore the original aesthetic appearance of the unit.

All this translates into exciting dynamics, brilliance of sound, lack of oscillation of the canvas in the presence of low frequencies, making listening to this beautiful device very realistic and pleasant. With a pinch of eccentricity.

The first track is Nobody Knows You When You're Down and Out performed by Bessie Smith. At the end of the WWI, the United States economy restarts strongly, a period of abundance begins, the Roaring Twenties. Written by pianist Jimmie Cox in 1923, after several interpretations and modifications to the original text, it was interpreted by Bessie Smith in 1929. The text speaks of the fortunes made by someone during the Prohibition era and highlights the precariousness of material wealth and interested friendships that result. On October 24, 1929, the collapse of the New York Stock Exchange will bring about the greatest depression that the United States and parts of the rest of the world have known.

This year Napoli won the Scudetto, so there was bound to be happy Neapolitan music. The second piece written by Umberto Bertini and set to music by Vincenzo Di Paola and Sandro Taccani Chella 'llà was one of Renato Carosone's fortes. The song tells of the joy of a man who manages to free himself from a relationship that caged him and who is savoring freedom. The song begins with a speech to become playful and catchy as only the Neapolitans can do.

The third piece performed by Dizzy Gillespie, the famous Tin Tin Deo was composed together with Gil Fuller and Luciano "Chano" Pozo. A thunderous opening that later transforms into a Latin rhythm and then returns explosively with the trumpets sliding towards swing. His style that combined entertainment and musicality has encouraged the spread of bebop. Gillespie's solos were breathtaking. Certainly a giant of Jazz.

The fourth piece is the Adagio for oboe in D minor by Alessandro and Benedetto Marcello. It is an interesting piece because it is a classic example of baroque with a musical theme adorned with flourishes. The flourishes are recognized above all in the repetition of the opening motif where the virtuosity and musical sensibility of the singer or performer could be expressed. Johann Sebastian Bach transcribed a harpsichord version of Marcellus' Adagio (BWV 974)

The fifth song is the very famous The River by Bruce Springsteen. Springsteen himself called this song "a revolutionary song". He himself also stated that he drew inspiration, in the lyrics, from a 1950 song by Hank Williams "Long Gone Lonesome Blues". The song recounts a conversation between him and his wife's brother. After losing his construction job, he worked hard to support his wife and young son, but he never complained. In Pittsburgh on September 22, 1984, he dedicated the song to Pennsylvania union leaders.

BLUETOOTH

Bluetooth receiver embedn

MULTI PLATFORM CONNECTION

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

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.

SABA is the acronym for Schawarzwälder-Apparate-Bau-Anstalt meaning engineering institute of Technological appliances of the Black Forest.

The company was founded back in 1835 by Joseph Benedikt with the initial name of Jockele-Uhren, but only in 1923 the production of radio devices began and the company went under the name of SABA.
Toward the end of the 20s SABA became famous with the well-known S35 and in the following years it became the second German producer after Telefunken. During the war SABA produced military equipment and in 1945 the company was completely destroyed by a bombing.
In 1947 the production of radio devices began again and SABA distinguished itself immediately for ist avant-garde and high- quality production.

hey also began to produce TVs (the first PAL color TV is a SABA), house appliances and medical equipment. Many Italians used to work there. The Alnico Greencone loudspeakers became popular for their linearity, power handling, constant impendence that would be employed in each Hi-Fi devices of that time.

The radio devices with motorized tuning became popular as well and SABA became the representative German brand meaning quality, reliability and detailed precision. In the 1970s the decline began. According to specialized magazines of that time not having a Japanese device at that time meant not having Hi-Fi. In the 80s Thompson took over SABA. In the 90s the other way around, having a Japanese device of the 70s meant not having Hi-Fi. They found out that they functioned with a 96% counterreaction and that a device with 0.001 db from 1 to 100 KHz extension did not necessarily sound good.

We do not trust our ears and we do trust what other people say not necessarily with a good purpose.
2007: due to insolvency SABA disappeared from the TLC (Chinese) and Thompson (French) joint venture, and SABA ceased to exist.

MEASURED TECHNICAL FEATURES

IMPORTANT REMARK
(to be read carefully at least the first time)

The following measures have been carried out in order to compare, from an electrical point of view, the devices that will be reviewed on this site. It is not possible to make comparisons with measurements made by other laboratories on different devices. The instrumentation and measurement conditions are probably very different.
The instrumentation used for the measurements is obsolete and unprofessional. We believe that more precise instrumentation is not necessary due to the tolerances of the human auditory system. Distinguishing a distortion of 1% from one of 1.1% or 1.001% only makes sense from the electrical point of view. Probably no one can hear the difference by ear. Only a child and very few lucky people can perceive the difference between a flat response curve up to 16 KHz and one up to 20 kHz.
The perception of sound depends on many factors, namely the age of the listener, the listening environment, the musical genre that is being reproduced, the listener's expectations, his or her listening habits and knowledge and many other factors, besides of course the quality of the other devices. Therefore, there is no direct and unique relationship between the results of the measurements made and the pleasantness of listening to a specific device.

BANDWIDTH

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 you can see the rotation mechanism, and the aerial position indicator.
The reception sensitivity with internal aerials is very good. This unit was in fact produced when there were not many radio stations, and those available were far from each other.
Using an external aerial sensitivity is further increased.

german radios - fr

Telefunken Opus 2550 – fr

1st mai 20231st mai 2023
par giovanni

german radios - fr

Loewe Opta Venus 3791W – fr

27th avril 20231st mai 2023
par giovanni

blaupunkt - fr

Blaupunkt Granada 23400 – fr

25th avril 202327th avril 2023
par giovanni

german radios - fr

AEG 6077 3D – fr

25th avril 202325th avril 2023
par giovanni

AEG's story is needed to understand that the cabinet is designed and built by AEG, the chassis, electronics and all components come from the Telefunken factories. Infact all components are branded Telefunken.
Obviously, it is practically the same company.

In particular the AEG 6077 is a Telefunken Concertino with a different cabinet.
After the calibration this receiver has an exceptional sensitivity in Medium and Short Waves, so much so that it looks like a radio amateur or military receiver.
In FM mode the sound signal is faultless and free from rustles.

Since I have already made a review for the Concertino 8, I will illustrate the cabinet of the radio because it is markedly different with respect to the Telefunken radio.

The cabinet is robust as you can perceive from its weight.
It has been built with 12 mm of real wood, exactly the triple thickness of a Gelasso radio, given to me by a friend to make a calibration.
In addition, this cabinet has rounded and harmonious shapes which makes it very elegant.
There is no square cut even in the side grille frames.

The loudspeakers are protected by durable canvas, that even after 50 years, does not even have one scratch.
Control knobs, frames, brass everything has a high quality and these elements are chosen with extreme attention to detail.

Undoubtedly an example of what uncompromising teutonic quality means.

BLUETOOTH

Bluetooth receiver embed

MULTI PLATFORM CONNECTION

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

- 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.

AEG "Allgemeine Electricitäts Gesellschaft" was founded in 1883 by the engineer Emil Rathenau in Berlin. He purchased Edison's bulb license to market it to Germany through the company he founded under the name ' Deutsche Edison Gesellschaft '' (DEG) (German Edison Company).

In 1887 AEG introduced the first home appliances during a World Exhibition: Iron, kettle for the tea, curls hair. AEG quickly became Germany's leading manufacturer of home appliances, unbeknownstically integrating its name into the tradition of German quality.
In 1907 AEG hired the architects and designers Peter Behrens as an industrial designer.
In 1912 it produced the famous 'Dandy' vacuum cleaner, and since then AEG will provide the German market with a continuous revolution and innovation in home and office equipment.

In 1903 AEG together with Siemens A.G. founded TELEFUNKEN with the intention of making it the leading technology company with Germany's video-radio-electronic and military skills.
In 1911, Kaiser Guglielmo sent Telefunken engineers to West Sayville (New York) to erect a 180-meter radio tower. A similar tower was erected in Nauen (Germany), creating the only wireless communication network between North America and Europe. During the construction of the tower in New York, German workers denied access to the area of work for American staff.

Now AEG belongs to the Electrolux group.

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.

The frequency response correction system consists of 4 keys that insert predefined equalization curves operating on the negative feedback circuit (they are not passive filters).
-
The Bass button accentuates the low frequencies.
The Orchester button puts in flat the actual band and allows the operation of the volume checks, inhibited by pressing any of the other 3 keys.
The Jazz button accentuates the low and high frequencies, simplifying listening to this musical genre.
The Solo button accentuates slightly the medium frequencies, favouring listening to each of the singular instruments.

german radios - fr

Grundig 3055W/3D – fr

25th avril 202325th avril 2023
par giovanni

german radios - fr

Nordmende Tannhauser 59 – fr

16th mars 2023
par giovanni

Nordmende Tannhäuser 59

Tannhäuser, nato in una famiglia di cavalieri di Salisburgo, partecipò forse alla sesta crociata del 1228 e fece quindi una vita errante come poeta e cantore. Frequentò la corte di Vienna del duca Federico II.
Secondo una leggenda, nella sua vita Tannhäuser trova il Venusburg (monte di Venere), il regno sotterraneo di Venere, e vive con lei per un anno. Lascia quindi la dea pieno di rimorsi, e intraprende un viaggio fino a Roma, per chiedere perdono al Papa Urbano IV. Il papa gli ricorda che tale peccato porta alla dannazione eterna, e gli promette perdono solo in caso di miracolo: la comparsa di fiori nel suo bastone. Tre giorni dopo Tannhäuser torna a Vienna ed il bastone fiorisce.

La leggenda è stata quindi messa in musica da Richard Wagner con il suo Tannhäuser.

La Nordmende, ai tempi del suo massimo splendore e sviluppo tecnologico volle chiamare Tannhäuser il suo apparecchio più bello mai prodotto.
Un apparecchio studiato per rappresentare il massimo della perfezione tecnica del tempo e costruito con cura maniacale.
Lo stadio finale è composto da una coppia di EL84 in Push-Pull. L'inversione di fase veien effettuata con una sezione del doppio triodo ECC82 in configurazione Cathodyne. Questo tipo di invertitore ha il vantaggio di poter essere collegato direttamente allo stadio precedente.
Tale stadio è costituito dalla sezione rimanente del doppio triodo ECC82 che provvede ad amplificare il segnale dopo l'attenuazione derivante dal circuito del controllo di toni.
Il triodo contenuto nella valvola multifunzione EABC80 costituisce il preamplificatore di ingresso e riceve il segnale da un potenziometro logaritmico con 3 prese intermedie per un complesso ed accuratissimo circuito di controllo fisiologico di volume.

La sezione radio è di altrettanta elevata qualità. E' presente uno stadio di Media Frequenza supplementare allo scopo di aumentare la selettività.
Questo permette una ricezione delle trasmissioni, particolarmente in Modulazione di Frequenza, particolarmente stabile ed esente da disturbi.

Il complesso di altoparlanti è poi veramente imponente. Tutti gli altoparlanti sono di costruzione Isophon.
La riproduzione delle basse e medie frequenze è assicurata da un grande woofer ellittico P 2031/19/105 che misura 31 cm di lunghezza e 20 di altezza.
Agli acuti sono dedicati invece ben 5 altoparlanti costruiti con 3 tecnologie diverse.
Frontalmente abbiamo il medio a cono da 13 cm per una riproduzione morbida e perfettamente integrata con quella del woofer.
Su ciascun lato è stato posto il famoso tweeter a cono HM 10/12/70 ed un tweeter elettrostatico ST HB7.

Come scrisse Baudelaire il Tannhäuser rappresenta la lotta dei due princìpi che hanno scelto il cuore umano come principale campo di battaglia, ossia la carne contro lo spirito.
La Nordmende rese onore a questa grande opera realizzando il suo prodotto migliore.

BLUETOOTH

Ricevitore Bluetooth integrato

CONTINUA >

PIATTAFORMA MULTICONNESSIONE

Ogni radio viene equipaggiata con uno speciale cavo che permette la connessione con qualsiasi sorgente digitale.

- Ricevitore Bluetooth integrato - Questa unità può essere equipaggiata con un ricevitore BLUETOOTH alimentato direttamente dall'apparecchio Questo rende possibile usare l'amplificatore da qualsiasi dispositivo digitale esterno, come IPAD, Smartphone, o sofisticate stazioni multimediali. Potrete ascoltare le vostre Stazioni Web o le vostre musiche preferite senza cavi in giro per la stanza. Su richiesta è possibile anche montare un Ricevitore Wireless.
- Piattaforma Multi Connessione - L'apparecchio viene fornito di un cavo di adattamento che permette di collegarlo a qualsiasi dispositivo digitale come A Iphone, Smartphone, Laptop, CD Player etc. Questo cavo speciale permette di adattare l'impedenza tra l'apparecchio ed i moderni dispositivi. Inoltre i due canali stereofonici vengono fatti confluire in un unico canale monofonico senza incrementare il carico dell'unità sorgente.

Nel 1923 Otto Hermann Mende fonda a Dresda la Radio H. Mende & Co. Dopo i bombardamenti della fabbrica nel 1945, Martin Mende (figlio del fondatore) crea una nuova società a Brema la North German Mende Broadcast GmbH . Il cui nome viene successivamente cambiato in NORDMENDE.
Negli anni 50 e 60 diventata uno dei produttori tedeschi di radio e TV di maggior prestigio della radio.

Negli anni 70 i televisioni NORDMENDE diventano famosi per i loro telai a schede e per il test rigorosi e controllo di qualità dei prodotti finiti. Ma i costi elevati di tanta qualità si rivelano uno svantaggio competitivo quando il prezzo di televisori a colori ha cominciato a scendere.

Nel 1977 una partecipazione di maggioranza viene venduta ai francesi di Thomson. L'anno seguente, la famiglia vende le azioni rimanenti. Nel 1980, le fabbriche di Brema viene chiusa, NORDMENDE diventando puramente un marchio di proprietà Thomson.

Fonte - Wikipedia

Grazie a Dan Ludington per la foto.

L'apparecchio è stato dotato di un sistema di correzione della risposta in frequenza indipendente dai controlli di tono.
E' composto da 6 tasti che inseriscono curve di equalizzazione predefinite operanti sul circuito di controreazione (non sono filtri passivi).

Il tasto Bass enfatizza i toni bassi.
Il tasto Sprache enfatizza i toni medi per un ascolto più pulito di trasmissioni parlate.
Il tasto Expander (quello grande centrale) inserisce una curva di controreazione che favorisce leggermente i toni medio bassi aumentando il senso di spazialità.
Il tasto Solo accentua leggermente i toni medi per favorire l'ascolto di strumenti singoli.
Il tasto Jazz enfatizza molto i toni bassi ed alti per favorire l'ascolto di questo genere musicale.

Il sistema di controllo dei toni è molto efficiente. Sopra le grandi manopole dei controlli di tono, separate per alti e bassi, troviamo due finestrelle separate che si illumina progressivamente di bianco indicando l'enfasi data alla banda su cui agiscono.
La manopola del controllo degli acuti è collegata alla ferrite nei trasformatori MF e ne fa variare la pendenza della campana del trasformatore stesso. In tal modo, quando si è nelle bande AM, si accentuano ulteriormente i toni acuti già prima dell'arrivo nello stadio amplificatore BF.

Sopra la scala, nel pannello altoparlanti troviamo la serie dei tasti del Bandbreite Schltbar illustrata in precedenza.
Scendendo sulla scala parlante, si trova prima di tutto l'occhio magico che indica la perfetta sintonizzazione di ciascuna stazione.
Sotto si trova il comando del volume (con loudness incorporato).
Tirando la manopola del volume si inserisce il circuito che aumenta la selettività nelle bande AM.
Partendo dall'alto sono indicate poi la scala AM per le Onde Lunghe, Medie e Corte, sotto troviamo la scala FM.
Proseguendo verso destra si vede l'indicatore della posizione dell'antenna in ferrite.
Vi è infine la manopola della sintonia, il cui movimento è molto piacevole essendo supportata da un grosso volano.
Coassiale alla manopola di sintonia c'è la manopola per ruotare l'antenna in ferrite.
Sotto da sinistra troviamo la manopola del controllo degli acuti immersa in un piacevole alloggiamento di bachelite con effetto avorio.

5080 - fr

Grundig 5080 – fr

27th février 201925th juin 2024
par giovanni

L a Grundig 5080 Hi-Fi Zauberklang est un des appareils le plus puissant produit par cette marque.

Grundig produisait de différentes classes d’appareils. Ceux de la série 1xxx sont les plus économiques, ceux de la série 2xxx et 3xxx sont de classe moyenne, ceux de la classe 4xxx et 5xxx sont de classe élevée.
Bien sur la 5080 Hi-Fi Zauberklang appartient à la série la plus chic et cela est évident.

Elle est la plus douée parmi les Grundig. Seulement la 4055 s’approche en stade finale et en batterie de haut-parleurs sans avoir l’égalisateur à 5 bandes, mais elle a deux échelles FM.
Dans la 5080 tout a été projeté pour obtenir une performance maximale. Stade finale avec deux EL 84 en Push-pull.
Egalisateur à 5 bandes, en ce cas aussi ,aucune radio n’a eu davantage (souligné en jaune dans le diagramme).
Compensation physiologique (souligné en vert dans le diagramme) dans le circuit de feedback (souligné en rouge dans le diagramme) pour une emphase efficace avec une linéarisation simultanée de la réponse .
Un stade préamplificateur en plus pour exploiter les capacités effectives du Push-pull de recevoir le double du signal en entrée.
Un stade de fréquence moyenne en plus pour une parfaite syntonie meme dans les situations les plus difficiles.
La section radio est naturellement aux niveaux les plus élevés pour l’époque, mais l’écoute de musique liquide ou bien des vinyles est éclatant.

Tout le monde se souvient des très fameux diffuseurs Bose 901 ceux avec 9 mini-woofer de 10 cm. Avec cette myriade de haut-parleurs, ils avaient stimulé l’imagination de nous tous quand ils étaient lancés sur le marché.
Bien, les Bose 901 avaient 700 cm2 radiante. La somme des surfaces de tous les haut-parleurs mis ensemble avait une couverture en surface de 700cm2.
Les haut-parleurs de cette Grundig ont une surface d’environ 1100cm2… à l’exclusion du calcul des deux tweeter !!!
La surface radiante n’est pas tout, bien sur, mais cette simplification extreme donne déjà l’idée des performances dont cette machine est capable.

BLUETOOTH

Récepteur Bluetooth integré

CLIQUEZ ICI >

PLATE-FORME MULTICONNECTING

Chaque radio est équipé avec un cable special qui permet le lien avec toute source numérique.

CLIQUEZ ICI >

- Récepteur Bluetooh intégré – Cette unité peut etre équipée avec un récepteur BLUETOOH que l’appareil alimente directement. Cela nous permet d’ultiliser l’amplificateur de toutes sources numériques externes, comme tablette,Smartphone, ou d’autres stations multimédia sophistiquées. Vous pourrez écouter vos stations Web ou vos musiques préférées sans avoir des cables dans la chambre. Sur demande il est possible de monter aussi un récepteur Wireless.

– Connection Multiplate-forme – Vous trouverez un cable adapteur qui vous permettra de le relier à toutes sources numériques comme A Iphone, Smartphone,Laptop,CD player etc. Ce cable special vous permet d’adapter l’impédance entre l’appareil et les dispositifs modernes. En outre les deux chaines stéreo se rencontrent dans une seule chaine monophonique sans augmenter la charge de l’unité souce.

1945 - immédiatement après la guerre la demande de réparation de radios est très élevée. Max Grundig construit les deux premiers appareils : le testeur Tubatest tube et le testeur Novatest.
1947 - la vente de radios en boite de montage fait son apparition, la Heinzelmann. L’unité est le commencement du succès, on vent plus de 15.ooo exemplaires.
1950 - en Allemagne les transmissions en FM font leur début et elles donnent de nouvelles exigences dans le secteur des appareils radio. Grundig lance dans le marché la 380W.
1952 - En Allemagne les transmissions de la première chaine tv font leur début. Après d’intenses recherches Grundig lance sur le marché sa première Tv, l’FS080. Dans la meme année le premier enregistreur portable est commercialisé, le Reporter 500L.
1956 - Après une série ininterrompue de radios toujours plus belles et de précise exécution la Grundig 5080 est produite, dotée d’un égaliseur à 5 bandes avec inspection visuelle de la courbe d’égalisation.
1965 - on ouvre une nouvelle usine à Brague au Portugal. On commence à produire la très heureuse série Satellit, avec le modèle 205. Ce produit marque le début de la production de récepteurs Grundig aux sons multiples de niveau élevé.
1970 - mise sur le marché des diffuseurs sphériques Audiorama 7000 avec douze haut-parleurs à l’intérieurs d’un diffuseur sphérique.
1976 - Grundig produit le magnétophone semi-professionnel TS1000.
1980 - Grand succès de deux produits au niveau maximal de l’HIFI, le syntoniseur 6000 et les diffuseurs Monolith dotés de 22 diffuseurs dynamiques.
1984 - A’ la fin d’un important recul des ventes Philips augmente sa participation dans Grundig et elle prend la direction de l’entreprise.
1997 - Philips sort de la participation dans Grundig.
2003 - On commence à introduire les demandes de mise en faillite de l’entreprise.
2008 - Le groupe turc Koç Holding prend le contrôle complet de Grundig Multimédia B.V.

Courtesy of: Grundig

Le système de contrôle des tons est un bijou. L’appareil est doué du fameux Wunschklang-Register.
Sur cet appareil le Wunschklang-Register est un égalisateur à cinq bandes.
Un fil rouge se déplace selon la position des potentiomètres et il dessine la courbe d’égalisation présélectionnée.
Chaque bouton est associé à un instument musical où la fréquence agit.

Bass-timbales,
Tuba Moyen-bas basson,
Corne mid clarinette,
Saxophonemid haut cornet,
Violon haut,
Trompette,
Flute.

L’effet visuel est agréable et facilement intuibile.

Comme on a déjà indiqué dans la description au début les haut-parleurs sont cinq. Ils sont posés aux trois cotés de l’appareil.

Le cone principal est un énorme large bande elliptique qui mésure 31 x 19 cm. Il est composé d’une robuste alliance et il a l’aimant en Alnique.
Les dimensions de l’ aimant sont considérables et aussi le poids du haut-parleurs, dans son ensemble, trahit sa force.
En effet il doit porter l’énergie donnée par les deux EL84.
La courbure du cone est de type exponentielle, comme il convient à un large bande de qualité très élevée.

Les deux tweeter électrostatiques avant, couvrent une très haute gamme de fréquences.
Aux deux cotés il y a deux large bande qui mésurent 25 x 17 cm. Ils sont de production Grundig et ils sont très efficaces aussi.

Le rèsultat finale est bien sur un son puissant, avec des bas très profonds et rapides.
La gamme moyenne est aussi très claire et les voix sont crédibles et en évidence, jamais confus.
Les aigues sont brillants mais doux. Et pas du tout stridents.

Une musicalité importante pour etre une radio.

Le premier bouton qui se rencontre est celui du volume avec loudness intégré.
Coaxial à cela est le bouton de rotation de l'antenne Ferrite pour OM et OL.
La position de l'antenne en ferrite est visible dans l'indicateur latéral qui s'allume lorsque l'antenne en ferrite est insérée.
Échelle de réglage AM pour les ondes courtes, moyennes et longues.
Échelle de réglage FM.
Ci-dessous, à gauche, nous trouvons les clés suivantes dans l'ordre:
AUS - Éteindre
TB - Enregistreur
TA - Platines Vinyles
FA - Insertion d'une antenne en ferrite

Catégorie : <span>ready for sale – fr</span>

Grundig 5005W enhanced

BLUETOOTH

CONNESSIONE A DISPOSITIVI DIGITALI

TUBESOUND IMPROVEMENT

HISTORY

MAIN FEATURES

MEASURED TECHNICAL FEATURES

IMPORTANT REMARK (to be read carefully at least the first time)

TONE CONTROL WITH LEVEL INDICATION

TUNING INDICATOR

CONTROL PANEL

REAR SIDE

THE RESTORATION WORK

THE USUAL AMAZING LAST IMAGE

BRIONVEGA RR126 GÉRÉ PAR ASSISTANT VOCAL

BRIONVEGA RR126

BRIONVEGA RR126 ALEXA

Saba Meersburg W4 enhanced

BLUETOOTH

MULTI PLATFORM CONNECTION

TUBESOUND IMPROVEMENT

THE HISTORY

MAIN FEATURES

MEASURED TECHNICAL FEATURES

IMPORTANT REMARK(to be read carefully at least the first time)

TONE CONTROL WITH LEVEL INDICATION

AERIALS

TUNING INDICATOR

CONTROL PANEL

REAR SIDE

THE USUAL AMAZING LAST IMAGE

Telefunken Opus 2550

Loewe Opta Venus 3791W

Blaupunkt Granada 23400

AEG 6077 3D

AEG 6077/3D

BLUETOOTH

MULTI PLATFORM CONNECTION

TUBESOUND IMPROVEMENT

HISTORY

MAIN FEATURES

AERIALS

TONE CONTROL WITH LEVEL INDICATION

BANDBREITE SCHALTBAR

SEPARATED TUNING CONTROL BETWEEN AM AND FM

TUNING INDICATOR

MAIN CONTROLS

LOUDSPEAKERS

REAR SIDE

RESTORING WORKS

THE USUAL AMAZING LAST IMAGE

Grundig 3055W/3D

NORDMENDE TANNHÄUSER 59

BLUETOOTH

PIATTAFORMA MULTICONNESSIONE

ELABORAZIONI TUBESOUND

LA STORIA

CARATTERISTICHE PRINCIPALI

BANDBREITE SCHALTBAR

CONTROLLI DI TONO CON INDICAZIONE DEL LIVELLO

ANTENNE

CONTROLLO SINTONIA SEPARATI TRA AM E FM

INDICATORE DI SINTONIA

ALTOPARLANTI

COMANDI

LATO POSTERIORE

LA CONSUETA BELLISSIMA NOTTURNA FINALE

NOT TRANSLATED YET

Grundig Konzertgerät 5080 Hi-Fi Zauberklang

Grundig 5080 Hi-Fi Zauberklang

BLUETOOTH

PLATE-FORME MULTICONNECTING

TRAITEMENTS TUBESOUND

L’HISTOIRE

CARACTÉRISTIQUES PRINCIPALES

EGALISATEUR AVEC INDICATION DU NIVEAU.

LES ANTENNES

CONTROLE DU RÉGLAGE SÉPARÉ ENTRE AM ET FM

INDICATEUR VISUEL D'ACCORD

IMPORTANT REMARK
(to be read carefully at least the first time)

IMPORTANT REMARK
(to be read carefully at least the first time)