Antique radios, Old Time Radios
AC/ZDD
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Country:
Great Britain (UK)
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| Identical to |
AC/ZDD
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| Base |
British-7-Pin, old (M7A) (Codex=Nh)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 4 Volts / If 2 Ampere / Indirect / Specified voltage AC/DC |
| Description |
Employs the Harries critically-spaced anode geometry.
3W audio output
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| Information source |
History of the British Radio Valve to 1940 p. 192
- - Manufacturers Literature Advt Nov 1936
Taschenbuch zum Röhren-Codex 1948/49
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AC/ZDD: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20
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Just Qvigstad
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