Antique radios, Old Time Radios
W704
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Country:
Netherlands
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| Identical to |
W704
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| Similar
Tubes |
Normally replaceable-slightly different:
25/450
; F704
Other base:
F704_UX4
; UX250
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| Production stop |
Feb.1938 |
| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 7.5 Volts / If 1.25 Ampere / Direct / Specified voltage AC/DC |
| Description |
The "Röhren-codex" lists this tube as a Thermion tube, but the brand is Longlife.
|
| Information source |
L'ABCDaire des lampes de TSF des jeunes années p. 74
- - Manufacturers Literature Sept. 1935
Röhrencodex , Röhren-Taschenbuch 1950 23000 Röhren
Taschenbuch zum Röhren-Codex 1948/49
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W704: rtt
Anonymous 10 Collector
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Just Qvigstad
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