Antique radios, Old Time Radios
RK37
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Country:
United States of America (USA)
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| Identical to |
RK37
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| Similar
Tubes |
Other characteristic (electr. data):
RK35
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| Base |
UX-Base (4 Pins (2 thick, USA 1924, UX) (Codex=Bt)
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| Filament |
Vf 7.5 Volts / If 4 Ampere |
| Description |
Similar to RK35 with mu raised from 9 to 30. Hard glass bulb, isolantite ceramic base.
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| Information source |
Taschenbuch zum Röhren-Codex 1948/49
- - Manufacturers Literature
Tube Lore (I)
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RK37: ARRL Handbook 1972
Anonymous 10 Collector
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Just Qvigstad
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RK37: Handbook Raytheon amateur tubes
Miguel Angel Trujillo-Rodriguez
More ...
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