Antique radios, Old Time Radios
R4C_E12
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Country:
Great Britain (UK)
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| Identical to |
R4C_E12
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| Similar
Tubes |
Other base:
R4C
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| Base |
Edison (candelabra) 12 mm
2 Top contacts.
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| Was used by |
Military and/or Government |
| Filament |
Vf 3.3 Volts / If 0.65 Ampere / Direct |
| Description |
Developed by Osram in conjunction with the British Navy, at the Hirst Research Centre of GEC. The anode and grid connections were made with wire leads from the top of the bulb.Tube also available with B4 base.
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| Information source |
Saga of the Vacuum Tube, Tyne p. 220
- - Manufacturers Literature Exhibition of MOV tubes January 1920
-- Collector info (Sammler)
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| Data Compliance |
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