National SW-4 (Gernsback : Radio 1 P: 220A) |
£1.80 (~ $2.20 or €2.10) |
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Country | USA |
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Manufacturer | National Company; Cambridge & Malden (MA) |
Alternative Name | National Toy Co. |
Brand | Thrillbox |
Model | SW-5 Thrill Box [24/27 tubes] - National Company; Cambridge & |
Year | Broadcast Receiver |
Valves | 5: 24 24 27 27 27 |
Technology | TRF with regeneration; Screengrid 1926-1935 |
Wave Bands | Wave Bands given in the notes. |
Power Type | Powered by external power supply or a main unit. |
Initial Price | 114.00 $ |