Antique radios, Old Time Radios
E425_Triotron
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Country:
Austria
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| Identical to |
E425_Triotron
= C405
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| Similar
Tubes |
Normally replaceable-slightly different:
LK430
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| First year |
1930
Tube leaflet collection E.Erb Analysis by original leaflets
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=F)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 4 Volts / If 0.3 Ampere / Direct / Specified voltage AC/DC |
| Information source |
Taschenbuch zum Röhren-Codex 1948/49
- - Manufacturers Literature 1935
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E425_Triotron: rtt
Anonymous 10 Collector
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Just Qvigstad
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E425_Triotron: own collection
Peter den Boer
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