Antique radios, Old Time Radios
VT28_GPO
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Country:
Great Britain (UK)
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| Identical to |
VT28_GPO
= DE3
= B5
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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| Was used by |
Telephony |
| Filament |
Vf 2.8 Volts / If 0.06 Ampere / Direct |
| Description |
Small triode used by the British Post Office in radio applications as a detector and amplifier. First made in 1923 by MOV and 1050 tubes manufactured.
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| Information source |
British Radio Valves - The Vintage Years: 1904-1925 Pages 84 and 134
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VT28_GPO: Fin Stewart
Fin Stewart
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Just Qvigstad
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