Antique radios, Old Time Radios
W428
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Country:
Netherlands
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| Identical to |
W428
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| Similar
Tubes |
Normally replaceable-slightly different:
E428
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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 0.9 Ampere / Indirect |
| Description |
The "Röhren-codex" lists this tube as a Thermion tube, but the brand is Longlife.
this tube can have a B5 base or B4 with sidecontact.
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Dimensions (WHD)
incl. pins / tip |
48 x 112 x 35 mm / 1.89 x 4.41 x 1.38 inch |
| Weight |
50 g / 1.76 oz |
| Information source |
Taschenbuch zum Röhren-Codex 1948/49
- - Manufacturers Literature 1-2-1935
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W428
Peter den Boer
More ...
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Just Qvigstad
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Collection of
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