Antique radios, Old Time Radios
RK57
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Country:
United States of America (USA)
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| Identical to |
RK57
|
| Similar
Tubes |
Normally replaceable-slightly different:
331A
; 805
; 905
; C805
; CV625
; FU-5
; VT143
|
| Base |
Jumbo 4-pin bayonet (1918) (Codex=By)
Top contact with a cap.
|
| Was used by |
Transmittertube (Radio) |
| Filament |
Vf 10 Volts / If 3.2 Ampere / Direct / Specified voltage AND current AC/DC |
Dimensions (WHD)
incl. pins / tip |
x 221 x 64 mm / x 8.70 x 2.52 inch |
| Information source |
Tube Lore (II) p. 220
Babani, International Radio Tube Encyclopaedia p. 210 & 211
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49
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RK57: ARRL Handbook 1972
Anonymous 10 Collector
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Just Qvigstad
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