Antique radios, Old Time Radios
HF-Relay
Country:
Great Britain (UK)
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Identical to |
HF-Relay
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First Source
(s) |
1925 : British Radio Valves - The Vintage Years: 1904-1925 p.4, 61 & 113
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Base |
SPECIAL TUBEBASE in general
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Was used by |
Radio/TV-reception etc. |
Filament |
Vf 3 Volts / If 0.06 Ampere / Direct / Battery = |
Description |
This tube was double ended with an interservice IS1 base at each end. The grid and anode are wire spirals, with a straight filament.
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Information source |
-- Collector info (Sammler)
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