Antique radios, Old Time Radios
R4C
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Country:
Great Britain (UK)
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Brand:
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| Tube type: |
Triode, vacuum Universal |
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<1925 rare. |
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| Identical to |
R4C
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| Similar
Tubes |
Other base:
R4C_E12
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| First year |
1919
??
Saga of the Vacuum Tube, Tyne page 220
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| First Source
(s) |
1919 : British Radio Valves - The Vintage Years: 1904-1925 p.26,27
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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| Was used by |
Military and/or Government |
| Filament |
Vf 3.8 Volts / If 0.65 Ampere / Direct / Battery = |
| Description |
First made by Osram GEC in 1919. Tube was fitted with E12 Edison base and had wire leads from the top from the plate and grid connections. British Navy version NR4C
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Dimensions (WHD)
incl. pins / tip |
50 x 105 x mm / 1.97 x 4.13 x inch |
| Information source |
- - Manufacturers Literature Gec cat. about 1924
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R4C: Fin Stewart
Fin Stewart
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Just Qvigstad
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R4C: own collection
Peter den Boer
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Collection of
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