| Bosch 139L ;Police Car Radio (Gernsback : Police 7 P: 1147-1150) |
| £1.80 (~ $2.20 or €2.10) |
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| Country | USA |
|---|---|
| Manufacturer | United American Bosch (Magneto Corporation); Springfield (MA) |
| Alternative Name | American Bosch Magneto |
| Brand | Essex |
| Model | Police Car Radio 139 - United American BosChassis Magneto |
| Year: 1934 | Category: Car Radio, perhaps also + sound player/recorder |
| Valves | 5: 78 6A7 78 75 41 |
| Technology | Superhet with RF-stage; IF 456 kHz |
| Wave Bands | Wave Bands given in the notes. |
| Power type | Storage Battery for all (e.g. for car radios and amateur radios) / =6 Volt |
| Source | Book: rider Vol: 5 Page: 14 |