Antique radios, Old Time Radios
Audion_Mullard
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| Tube type: |
TRIODE (Detail uncertain) |
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<1925 very rare. *** |
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| Identical to |
Audion_Mullard
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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| Filament |
Direct / Battery = |
| Description |
Looks to be a very early prototype of an Audion-like bulb on a 4-pin French base.
No info on data or production.
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| Information source |
-- Collector info (Sammler)
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Just Qvigstad
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Collection of
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