Antique radios, Old Time Radios
W406_Marathon
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Country:
Netherlands
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| Identical to |
W406_Marathon
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| Similar
Tubes |
Normally replaceable-slightly different:
B400
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| Base |
Europe 5-Pin , B5 (Eu O, F, O5A) 1928
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| Filament |
Vf 4 Volts / If 1 Ampere / Direct |
| Description |
LF amplification and power/output in Class A and Class B (2 W406 in push-pull) amplification. See datasheet.
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| Information source |
- - Manufacturers Literature 1935
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Just Qvigstad
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W406_Marathon: own collection
Peter den Boer
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