Antique radios, Old Time Radios
15-400
Country:
Netherlands
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Identical to |
15-400
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Similar
Tubes |
Normally replaceable-slightly different:
E408N
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Production stop |
Feb.1938 |
Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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Filament |
Vf 4 Volts / If 1 Ampere / Direct |
Description |
This is a tube from the Thermion Technica series of power amplifiers and power rectifiers.
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Information source |
- - Manufacturers Literature 1-9-1935
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15-400: Telefunken Werkstattbuch
Wolfgang Bauer
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Just Qvigstad
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15-400: own collection
Peter den Boer
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