Antique radios, Old Time Radios
42PTB
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Country:
Great Britain (UK)
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| Identical to |
42PTB
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| First Source
(s) |
1938 : History of the British Radio Valve to 1940 p.195
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| Base |
British-7-Pin, old (M7A) (Codex=Nf)
Top contact with a cap.
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 4 Volts / If 2 Ampere / Indirect / Specified voltage AC/DC |
| Information source |
Taschenbuch zum Röhren-Codex 1948/49
Babani, International Radio Tube Encyclopaedia p. 24 & 25
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42PTB: Telefunken Werkstattbuch
Wolfgang Bauer
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Just Qvigstad
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