Antique radios, Old Time Radios
P425_B4
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Country:
Austria
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| Identical to |
P425_B4
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| Similar
Tubes |
Other base:
P425_Triotron
Other base and data slightly different:
M43
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
Sidecontact.
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 4 Volts / If 0.25 Ampere / Direct / Battery = |
| Information source |
- - Manufacturers Literature 1935
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P425_B4: Triotron Röhrenkatalog von 1942
Wolfgang Bauer
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Just Qvigstad
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P425_B4: Triotron Röhrenkatalog von 1942
Wolfgang Bauer
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