Antique radios, Old Time Radios
ACHL4DD
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Country:
Great Britain (UK)
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| Identical to |
ACHL4DD
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| Similar
Tubes |
Normally replaceable-slightly different:
TDD4
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| First Source
(s) |
22.Nov.1935 : Wireless World (The), London (WW, 79)
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| Base |
British-7-Pin, old (M7A) (Codex=Nb)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC |
| Information source |
History of the British Radio Valve to 1940 p. 151
Taschenbuch zum Röhren-Codex 1948/49
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ACHL4DD: Tabu Röhren-Codex, 1948
Anonymous 15 Collector
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Just Qvigstad
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ACHL4DD: Röhren-Vademekum 1947
Helmut Weigl
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Collection of
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