Sparton 73 (Gernsback : Radio 7 P: 707 708 977) |
£1.80 (~ $2.20 or €2.10) |
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Country | USA |
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Manufacturer | Sparks-Withington Co., (Sparton); Jackson, Michigan |
Model | Model Sparton 73 - Sparks-Withington Co., Sparton |
Year: 1933-1934 | Category: Broadcast Receiver |
Valves | 6: 37 6D6 6D6 75 42 80 |
Technology | Superhet IF 456 kHz; 2 AF stage(s) |
Tuned Circuits | 6 AM circuit(s) |
Wave Bands | Broadcast only (MW). |
Power type | AC / 125; 150; 250 Volt |
Source | Book: gernsback Vol: 7 Page: 707&708&977 |
Source | Book: rider Vol: 7 Page: 4&6 |