Schaub Lorenz Phonosuper Stereo 10

ID: 148532
Schaub Lorenz Phonosuper Stereo 10 
05.Sep.07 10:37
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Bryan McAlley (GB)
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I have just obtained one of these radios for restoration and have the German language schematics from this site. I am confused by the designation "stereo", as it only has one loudspeaker and one output! Am I missing something??  Bryan

Beitrag zum Modell verschoben.
Please post from the model side in the future.
Wolfgang Bauer 

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 2
Stereo from a set with only one speaker... 
05.Sep.07 20:26

Martin Bösch (CH)
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Martin Bösch

Hallo Bryan,
I had a short look to the technical informations, in d_schaub_62_phonosuper_stereo10_beschr.pdf
You can find the solution, at least when Your mother tongue is the german...
it says: in stereo operation, the AF part of the set consists of a dual channel amplifier with the triode part of the EABC80, the tubes EF89 and ELL80 (both channels are separated). The Volume and tone controls as well as the tone pushbuttons
are in tandem configuration. While operating only one control, both channels are influenced simultaneously. With double taps of the volume potentiometer, the set provides a physiological volume control...
... for broadcast reception, both channels are switched together.

For stereo reproduction, one or two stereo speakers have to be connected. At the rear of the set, You find two standard connectors, where You connect an additional or two stereo speakers.
As stereo speakers, You might use the "Stereovox S" type speakers, broadband speakers or speaker combinations, that reproduce the complete audio spectrum. When an external speaker is plugged in, the internal speaker will automatically be disconnected.
Technical specialities: the set is prepared for the integration of an adaptor for HF (high frequency) stereophony.

This means:
The set has two amplifier strips, used for reproduction of signals from turntable or magnetophone (reel to reel),
reception on FM is only mono, but the set was prepared for an additional FM stereo decoder to be built in.
Compare Your set with the pictures, maybe You find an additional subchassis with the decoder....

hope this helps and You understand my English
kind regards Martin

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