Antique radios, Old Time Radios
DD4
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Country:
Great Britain (UK)
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| Identical to |
DD4
|
| Similar
Tubes |
Normally replaceable-slightly different:
2D4A
; CV1170
|
| First Source
(s) |
1934 : History of the British Radio Valve to 1940 p.137 &177
|
| Base |
Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=N)
Top contact with a cap.
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 4 Volts / If 0.75 Ampere / Indirect / Specified voltage AC/DC |
| Description |
The Tungram version is listed as having a 0.65A heater current against the Cossor version with 0.75A.
|
Dimensions (WHD)
incl. pins / tip |
x 88 x 33 mm / x 3.46 x 1.30 inch |
| Weight |
30 g / 1.06 oz |
| Information source |
Babani, International Radio Tube Encyclopaedia p. 94 & 95
Universal Vade-Mecum, Electron Valves and Semiconductor Devices Section 73, p. 100
Taschenbuch zum Röhren-Codex 1948/49
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DD4: Telefunken Werkstattbuch
Wolfgang Bauer
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Just Qvigstad
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):7
Collection of
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