Antique radios, Old Time Radios
DP/Pen
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Country:
Great Britain (UK)
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| Identical to |
DP/Pen
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| First year |
1933
-- Original-techn. papers.
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| First Source
(s) |
1933 : History of the British Radio Valve to 1940 p.174 & 189
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| Base |
British-7-Pin, old (M7A) (Codex=Ndo)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 16 Volts / If 0.25 Ampere / Indirect / Specified current AC/DC ~ = (Series working) |
| Description |
This tube has the uncommon heater current rating of 0.25A at 16V. It had a production life of only one year, being obsolete in 1935.
|
Dimensions (WHD)
incl. pins / tip |
48 x 110 x mm / 1.89 x 4.33 x inch |
| Weight |
51 g / 1.80 oz |
| Information source |
Taschenbuch zum Röhren-Codex 1948/49
- - Manufacturers Literature
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DP/Pen: Telefunken Werkstattbuch
Wolfgang Bauer
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Just Qvigstad
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DP/Pen: COSSOR VALVE MANUAL 1935-6
Jose Casas-Avalos
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2
Collection of
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