Antique radios, Old Time Radios
Wecovalve_4pin
| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 0.85 Volts / If 0.25 Ampere / Direct / Battery = |
| Description |
Two sets of data are listed by Mullard. Type "A" for use as a detector with 15 -25V on the anode. Type "B" for use as an amplifier with 30-50V on the anode.
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Dimensions (WHD)
incl. pins / tip |
x 16 x 90 mm / x 0.63 x 3.54 inch |
| Information source |
Wireless World (The), London (WW, 79) September 30 1925
History of the British Radio Valve to 1940 Pages 44,55,56,60,88,92 & 118
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Wecovalve_4pin: Fin Stewart
Fin Stewart
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Just Qvigstad
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Wecovalve_4pin: Banneitz, TB der drahtl. Teleph. 1927
Anonymous 15 Collector
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Collection of
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