Unknown 11 valves radio in Thomson-Houston Radio-Phono
? Unknown 11 valves radio in Thomson-Houston Radio-Phono
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Dear all
I have a radiophono from the early 1930 from the brand Thomson-Houston (the French, not the UK company). The radio part has obviously been changed at some stage and fitted with what looks to me like an American pre war radio (1936 or 1937?). I would like some help to identify this radio. It has 11 tubes: 42(2),76(2),78,6C6,6B7,6D6(2),6A7. The valves are missing and could be 80 or 5Z3? There are actually two valves sockets, one on the main transformer and one on the chassis.
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Unknown 11 valves radio in Thomson-Houston Radio-Phono
Judging from the picture of the underside, it is definitely an european chassis. Almost all of the original components are typically european, for example several capacitors with the Siemens-Halske logo and red resistors of typical Siemens model.
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Unknown 11 valves radio in Thomson-Houston Radio-Phono

Bonjour.
My thoughts about this radio chassis are as follows:
The scale (dial, cadre) is clearly written in French language (e. g. Bruxelles, Angleterre, Londres, Francfort).
The socket on the transformer top appears to be intended for the rectifier tube, due to the higher power demand a 5Z3 oder 83V is recommendable rather than an 80.
The empty socket on the chassis may probably serve as connection to the loudspeaker.
The many capacitors and resistors from Siemens have already been mentioned.
The black 50 000 cm capacitor is from Richard Jahre, also a German company. (Logo “RJ”, intertwined)
The well known SIC capacitors are of French origin, of course.
Despite the many German components, this device was certainly not manufactured in Germany: American tubes, such as those used here, were banned from the German market then.
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Unknown 11 valves radio in Thomson-Houston Radio-Phono
Also it looks like it has the neon stick glow lamp tuning indicator (1931 to 1935). Replaced by Magic Eye in 1935. Though some USA models used them, the chassis and scale does look European. It's probably French. Maybe 1934 or 1935?
I've never heard of Thomson being other than French, though they had bought IP and companies in UK and USA by the1980s. I never heard of a UK Thomson.
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Unknown 11 valves radio in Thomson-Houston Radio-Phono
There seems to have been an american Thomson-Houston company as early as in the late 19th century. The swedish city of Härnösand installed electric street lights already in 1885 and according to all records i know of, the electrical equipment was supplied by Thomson-Houston in Boston, USA. One generator supplying 2 kV DC and 25 series connected carbon arc lamps.
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