Antique radios, Old Time Radios
DD4
|
Country:
Europe
|
|
| Identical to |
DD4
|
| Similar
Tubes |
Normally replaceable-slightly different:
2D4A
; CV1170
|
| First Source
(s) |
1934 : History of the British Radio Valve to 1940 p.177
|
| Base |
Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=N)
|
| 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.
|
| Information source |
Taschenbuch zum Röhren-Codex 1948/49
|
|
|
 |
|
DD4: own collection
John Koster
|
| |
|
DD4: Telefunken Werkstattbuch
Wolfgang Bauer
|
| |
from Just Qvigstad
|
|
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):6
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