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Siemens Meistersuper 843W siemens - cn

Siemens M…

Siemens Meistersuper 843W

Siemens Meistersuper 843w

Siemens Meistersuper 843W

The Siemens Meistersuper 843W was produced between 1954 and 1955 and had a good sales success, even though the lion's share was taken by the models of the Schatulle series.
The most interesting feature of this device is the unusual combination of the two large elliptical loudspeakers (26x18 cm) and the class A output stage.
The two large loudspeakers, equipped with a 10.000 Gauss magnet, can easily withstand the power developed by the final EL84. From the musical point of view, the quality of these speakers correspond to a very extended and rich  bass frequency response. At the same time, the linearity of the class A amplifier provides soft and bright mid and high tones.

The cabinet is very refined.
The large size needed to include the two big loudspeakers are mitigated by some stylistic solutions that were later adopted on many models.
The side walls are, in fact, raised compared to the front side. The corners are rounded with different radii of curvature between the lower and upper sides. The streaks of the coating, moreover, are placed orthogonally to those of the front. Besides, the streaks of the edges are very pronounced. Finally, two thin golden lines interrupt the front edges in width.
All these expedients slim down the large cabinet, making it very pleasing to the eye as for its overall balance.
Moreover, the coatings were chosen and combined with ancient mastery, making the most of the contrast created by the streaks.
In this restoration we have tried to bring this cabinet back to its lively original character, without softening it nor hiding anything.

 

The tuning stability allows to find again a perfectly centred station, even if the radio has not been switched on in a few days.
The mechanics are “simple” and sturdy. The electronic parts are quite complex, but they have been completely restored, so no fear.

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.

MAIN FEATURES

Year of production: 1954/1955

Superheterodyne IF: 468/10700
6 AM Circuits
9 FM Circuits

Wavebands:
Medium Waves(OM), Long Waves(OL), Short waves(OC), FM(UKW)

Power supply: (AC)
110; 125; 160; 220 Volt

Loudspeakers
2 x wideband 10" x 7"

Dimensions (LHD): 620 x 420 x 290 mm / 24.4 x 16.5 x 11.4 inch
Net weight: 13 kg / 28 lb 10.1 oz
Tubes 7: EF80 EC92 ECH81 EF89 EM80 EABC80 EL84

Siemens Meistersuper 843w

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.

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.

Siemens Meistersuper 843w
Siemens Meistersuper 843w

SEPARATE CONTROL TUNING BETWEEN AM AND FM

The unit is equipped with mechanisms that control separately the AM band tuning and the FM band.
The tuning knobs are coaxial.
The largest crown controls the AM bands (short, medium and long waves).
The frontal knob, smaller, controls the FM band.

TUNING INDICATOR

The magic eye has of course been replaced.

Siemens Meistersuper 843w

LOUDSPEAKERS

There are two loudspeakers, actually very large. In the long side they measure 26 cm and 18 cm in the short side.
Apart from being large, they are equipped with an alnico magnet that guarantees a 10.000 Gauss magnetic flux density.
The resulting efficiency is noticeable, so very little power is enough to produce a very high sound pressure.
Moreover, the profile of the cone is slightly trumpet-shaped, so that the high frequencies are effectively reproduced in the central part of the cone and the rest of the profile contributes to adapt the acoustic impedance between the membrane and the surrounding air.
The result is a very extensive reproduction, both at low and high frequencies.

It is no coincidence that this is one of the few devices with a single-ended amplifier that easily support the bass of the Area's track Luglio, Agosto, Settembre (Nero).

CONTROL PANEL

Siemens Meistersuper 843w

To the left is the volume control (with loudness built-in). Coaxially there is the ferrite aerial control.
Under the dialglass we find the treble control equipped with indicator on the main dialglass.
On the right we find the magic eye indicating the perfect tuning of each station and the Short, Long, Medium, FM scales and further the tuning knob.
Below there are the bass control

Between the two tone controls is the keyboard with the following functions:
AUS - OFF
Phono - Turntable/Bluetooth
KURZ - Onde Corte

LANG - Long Wave
MITTEL - Medium Wave
O-M - Preselected Medium Wave
UKW - FM

The recording takes place by tuning two screws on the bottom.

Siemens Meistersuper 843w

REAR SIDE

Output for external speakers.

Socket for recorder (tonbandgerat).

Turntable input (Tonabnehmer)

AM and FM aerial inputs and ground socket.

RESTORATION STEPS

THE USUAL AMAZING LAST IMAGE
Siemens Meistersuper 843w
Siemens M47 m47 - cn

Siemens S…

Siemens Schatulle M47

SIEMENS SCHATULLE M47

The Siemens Schatulle was produced between 1954 and 1955 and it was another of the best and most successful models of the entire Schatulle series.
Sold in a limited number of items due its high cost and dimension, it was, together with the P48, the model with the most impressive sound impact of the entire Siemens production.

- The power stage is the same as the P48's one, a pair of Push-Pull EL84, a sophisticated counterreaction system, physiological volume control, separate high and bass sound controls.
- There are three ELA series loudspeakers, all of them with double come and highly efficient. Siemens used to have these loudspeakers on its professional installation and in movie theatres.
- Despite its power, this device reproduces sounds with such a fascinating smoothness that can be had , once again, through the large band loudspeakers. These loudspeakers reproduce indeed the entire audible array with a continuity and linearity unknown to multivia systems. Extreme acutes are not so sharp as in electrostatic loudspeakers, but the maker's choice in this device aimed to create roundness and pleasentness of sounds.
- Dimensions are those of an important device. Its shape captures our attention and in every ambience the device's majesty makes it the epicenter of the room, especially when its front windows are open.

This device is best to be listened in on in a spacious room and played out loud.
The tuning stability allows the last station to be perfectly centered after days.
The mechanics is “simple” but robust. The electronic parts are rather complex, but don't worry, it's completely restored.

This one is a device only for a few lucky ones.

Siemens Schatulle M47

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.

MAIN FEATURES

Year of production: 1954/1955

8 AM Circuits
12 FM Circuits
Wavebands:
Medium Waves(OM),  Long Waves (OL), Short waves (OC), FM (UKW)
Power supply: (AC)
110; 125; 160; 220 Volt

three 8" dual cone wideband

Dimensions (LHD): 26.8 x 18.3 x 12.8 inch
Net weight: 44 lb 0.8 oz
Tubes 11: EC92 EC92 ECH81 EF89 EM80 EBF80 EB91 ECC83 ECC83 EL84 EL84

Siemens Schatulle M47

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.

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.

Siemens M47
Siemens M47

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 the 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.

Siemens M47

The shutters’ cladding canvas needs to be acoustically as transparent as possible. It is a robust but holed canvas in order for the light to go through.
If you closed the shutter when the radio is on the effect created by the visible rear lights would be rather unpleasant.
Siemens solved this, infact when you close the left shutter the lightning of the dial scale switches off.

TUNING INDICATOR

The magic eye has of course been replaced.

Siemens M47

LOUDSPEAKERS

There are four louspeakers.
Two 21 cm (8.2 inches) very efficient bicone and known by experts using these louspeakers to create amplifiers.
The radio is equipped with two cone tweeters assembled on the acoustic lens.
That creates a pleasant ambience and a side diffusion as widespread as possible.

CONTROL PANEL

Siemens M47

To the left is the volume control (with loudness built-in). Coaxially there is the ferrite aerial control.
Under the dialglass we find the treble control equipped with indicator on the main dialglass.
On the right we find the magic eye indicating the perfect tuning of each station and the Short, Long, Medium, FM scales and further the tuning knob.

Below there are the bass control , the OFF key, turntables key, the keys to tune in Long Wave, Medium, Court, FM, and the Treble Control.
We also find the keys O-M and O-UK. The device allows you to store a station in a medium wave and another in FM and recall them with these keys.
The recording takes place by tuning two screws on the bottom.

Siemens M47

REAR SIDE

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

RESTORATION STEPS

THE USUAL AMAZING LAST IMAGE
Siemens M47
Siemens M57 german radios - cn

Siemens S…

Siemens Schatulle M57

SIEMENS SCHATULLE M57

西门子(Siemens) Schatulle M57于1955~1957年间制造,这是整个Schatulle系列最好的和最成功的机型。虽然M57销售数量比更小更便宜的H42还少,体积和声音也不及P48,但在许多方面Siemens Schatulle M57无疑是三者里最均衡的机型。

我将进一步解释为什么。

- M57的功率级别和P48一样大,有两支推挽式的EL84电子管,精致的相互作用系统,生理的音量控制,高低音各自分离控制。

- 和P48不同,M57配备了4个扬声器。M57配备两个声学驱动器的锥体宽带喇叭和两个高音喇叭。这使得声音再现性特别细致化和线性化。

- M57的尺寸介于H42和P48之间,使M57更容易摆放在任何场所,同时也显得雄伟。此外,虽然相当大型,但长度/高度的比例恰当而使这个装置的外观令人非常愉快。

- 与其他机型不同,即使在正面的小百叶窗关闭时,该装置也可以开机和关机,并且可以调节音量。

其他的Schatulle机型都没有这些特点元素。这就是为什么Schatulle M57属于高质量的西门子产品的原因。

这个装置最好在宽敞的房间里听,并且大声演奏出来。

调谐非常稳定,即使几天后最后调谐点还是保持在完美的中心点。

机械是“简单”但强大。电子零件相当复杂,但完全恢复了。

其他功能将进一步描述如下。

 

你可以从Siemens听到极致的声音

 

Siemens M57

蓝牙
加装蓝牙接收器

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多平台的连接
每台收音机都配备了一条连接到任何数字设备的音频线。

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放大管声音的改进

- 蓝牙接收器加装-该单位配备了一个蓝牙接收器,直接由收音机供应电源。这使得有可能控制放大器从任何外部数字设备作为一个iPad,智能手机,或一个复杂的多媒体站。所以你能无线听到您喜欢的网站或你的无损档案。无线接收器可根据要求选配。
– 多平台连接-一条客制化阻抗适配音频线以连接任何数位音源,如iPhone,智能手机,电脑,CD播放机等,这条音频线适用于现代数位音源设备的不同阻抗。此外,两个立体声频道被收集到一个单一的流量,而不增加负载输入单元。

主要特点

生产年份: 1955/1957

超外差式收音机IF 468/10700
9 AM电路,14 FM电路.
无线电波段: LW, MW, SW, FM

2 X锥体宽带喇叭
2 X高音喇叭

尺寸(长高深): 69x47x33公分
净重: 19.5公斤
11支放大管: 2xEC92 2xEF89 ECH81 EM80 EF80 EABC80 ECC83 2xEL84

AM採用旋转镍锌铁氧体天线

Siemens M57

音调控制

音调控制系统是非常有效的,在音调控制大旋钮上,你可以找到一个小窗口,黑白颜色对比逐渐显示出对高低音比例。

天线

机壳内有一个半波偶极天线FM调频接收和旋转镍锌铁氧体天线AM调幅接收。
旋转镍锌铁氧体天线可以从外部旋转,实现了在AM调幅完美的调整。
在这张图片中,看到旋转机构和空中的位置指示器。具有内部天线的接收灵敏度很好。
使用外部天线灵敏度进一步增加

Siemens M57
Siemens M57

AM调幅和FM调频是各自控制调谐

调谐系统是另一个特点
该单元配备了保持独立的AM调幅和FM调频带的机制。
调谐钮是单一的,但有一个选择器开关通到电缆系统(全不锈钢)和滑轮分离。
这转动是伴随着两个复杂的滑轮和分离齿轮的转移机制。

特点

百叶窗外的旋钮具有双重功能:

-开机/关机按钮(压)
-音量控制(转)

因此,您可以無須打开百叶窗轻易地来控制设备。

收音机开机时,外旋钮发出红色灯光。

Siemens M57

百叶窗的包层织布需要尽可能的使声音穿透。织布需要紧密结实的,但织布孔隙又必须适当地透光。
收音机开启时,如果此时你合上百叶窗而灯光随之熄灭,整体效果会大打折扣。

西门子解决了这个问题:

当你关闭左百叶窗时,魔眼会自动关闭
当你关闭右百叶窗时,玻璃面板电灯就会关闭。

该器件配备了双位置均衡器换向器:

Musik(音乐)–整个探测声音波谱再现。

Sprache(语言)–只有中央部分的声音波谱频谱再现。

指示灯亮起时表示在Sprache的位置:按左边第一个键(Sprache/Musik)。

调谐指示器

调谐指示当然已经被更换

Siemens M57

扬声器

有四个扬声器。

两个21厘米(8.2英寸)非常有效的锥体喇叭,已知许多行家利用这些喇叭制造放大效果。

收音机还配备了两个圆锥体高音喇叭装在导音罩上。

创造一个愉快的氛围和一个侧面扩散尽可能广泛。

控制面板

Siemens M57

控制被放置在一个不寻常的方式。
左边有铁氧体曲线的旋转控制。
在右边你可以看到魔眼(调谐指示器)。
下面的魔眼可以看到均衡器的语言/音乐(Sprache/Musik)指标。
然后,玻璃面板有短,中,长波,AM的波段与不同颜色的FM波段范围。

最后,您可以看到调谐旋钮,其两个支持大飞轮使其运动非常平顺。
下面你可以找到低音控制旋钮。
然后依次是:的语言/音乐、唱片机、长、短、中波、铁氧体曲线,OM窄带及FM调频切换按键。最后,在右边,急性控制旋钮。
百叶窗外的照明旋钮允许音量控制(结合响度)

Siemens M57

背面

外部扬声器输出。
录音机输入。
唱片机输入。
AM调幅和FM调频天线输入和接地插座。

恢复步骤

呈现美丽的形象
Siemens M57