Antique radios, Old Time Radios
210VPT_4pin
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Country:
Great Britain (UK)
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| Identical to |
210VPT_4pin
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| Similar
Tubes |
Normally replaceable-slightly different:
W21
Other base:
210VPT
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| First Source
(s) |
1934 : History of the British Radio Valve to 1940 p.145 & 195
22.Nov.1935 : Wireless World (The), London (WW, 79)
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
Top contact screw type.
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 2 Volts / If 0.1 Ampere / Direct / Battery = |
| Description |
Grid g3 connected to filament pin. This tube is a variable mu type.
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| Information source |
-- Collector info (Sammler)
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210VPT_4pin: Telefunken Werkstattbuch
Wolfgang Bauer
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Just Qvigstad
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Collection of
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