Antique radios, Old Time Radios
W438
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Country:
Netherlands
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| Identical to |
W438
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| Similar
Tubes |
Normally replaceable-slightly different:
E438
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| Production stop |
Feb.1938 |
| Base |
Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=F)
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| Filament |
Vf 4 Volts / If 1 Ampere / Indirect |
| Description |
The "Röhren-codex" lists this tube as a Thermion tube, but the brand is Longlife.
LF amplification, resister coupling.
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| Information source |
Taschenbuch zum Röhren-Codex 1948/49
- - Manufacturers Literature 1-2-1935
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W438
Peter den Boer
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Just Qvigstad
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