648
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Coronado | ||||
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| Year: 1938 ?? | Category: Broadcast Receiver - or past WW2 Tuner | ||||
| Valves / Tubes | 6: 6A7 6D6 75 76 6AC5G 80 |
| Main principle | Superheterodyne (common); ZF/IF 455 kHz |
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| Wave bands | Broadcast only (MW). |
| Details | |
| Power type and voltage | Alternating Current supply (AC) / 119 Volt |
| Loudspeaker | Electro Magnetic Dynamic LS (moving-coil with field excitation coil) |
| Power out | |
| from Radiomuseum.org | Model: 648 - Gamble-Skogmo, Inc.; |
| External source of data | Ernst Erb |
| Circuit diagram reference | Rider's Perpetual, Volume 9 = 1938 and before |
All listed radios etc. from Gamble-Skogmo, Inc.; Minneapolis, MN
Here you find 651 models, 289 with images and 594 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
