31H
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alternative name
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American Bosch Magneto | ||||
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Brand |
Essex | ||||
| Year: 1931 | Category: Broadcast Receiver - or past WW2 Tuner | ||||
| Valves / Tubes | 6: 35 27 35 24 47 80 |
| Main principle | Superheterodyne (common) |
|---|---|
| Wave bands | Broadcast only (MW). |
| Details | |
| Power type and voltage | Alternating Current supply (AC) |
| Loudspeaker | Permanent or electro-dynamic (moving coil), system not known yet. |
| Power out | |
| from Radiomuseum.org | Model: 31H - United American Bosch Magneto |
| Material | Wooden case |
| Shape | Console with any shape - in general |
| Price in first year of sale | 67.00 $ |
| External source of data | Ernst Erb |
| Source of data | Radio Collector`s Guide 1921-1932 |
| Mentioned in | The Radio Collector's Directory and Price Guide 1921 - 1965 |
All listed radios etc. from United American Bosch (Magneto Corporation); Springfield (MA)
Here you find 412 models, 158 with images and 269 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
