Antique radios, Old Time Radios
E157_Osram
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Country:
Great Britain (UK)
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| Identical to |
E157_Osram
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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| Was used by |
Technology / Measurement |
| Filament |
Vf 1 Volts / If 1 Ampere / Direct / Specified voltage AC/DC |
| Description |
Limited production experimental triode for use in early alternating current circuits. Developed at the Hirst Research Centre of GEC. One of these tubes was in the John Stokes collection in New Zealand.
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| Information source |
-- Collector info (Sammler)
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E157_Osram: Fin Stewart
Fin Stewart
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Just Qvigstad
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Collection of
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