Sonora 4R (Gernsback : Gram 1 P: 270) |
£1.80 (~ $2.20 or €2.10) |
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Country | USA |
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Manufacturer | Sonora Phonograph Co., Inc.; New York, N.Y. |
Model | Model 4R - Sonora Phonograph Co., Inc.; |
Year: 1929 | Category: Broadcast Receiver |
Valves | 8: |
Technology | TRF |
Tuned Circuits | 4 AM circuit(s) |
Wave Bands | Broadcast only (MW). |
Power type | AC |
Source | Book: gernsback Vol: 1 Page: 270 |
Source | Book: rider Vol: 1 Page: 1 |