Antique radios, Old Time Radios
RK25B
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Country:
United States of America (USA)
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| Identical to |
RK25B
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| Similar
Tubes |
Other class quality (otherwise equal):
RK25
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| Base |
7-Pin-Base U7B = medium, old, USA (Codex=Mc)
Top contact with a cap.
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| Filament |
Vf 6 Volts / If 0.9 Ampere / Indirect |
| Description |
Bakelite base version of RK25.
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| Information source |
Taschenbuch zum Röhren-Codex 1948/49
- - Manufacturers Literature
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RK25B: ARRL Handbook 1972
Anonymous 10 Collector
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Just Qvigstad
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RK25B: Handbook Raytheon amateur tubes
Miguel Angel Trujillo-Rodriguez
More ...
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