Antique radios, Old Time Radios
4K170
Country:
Germany
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Identical to |
4K170
= 73402
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Similar
Tubes |
Normally replaceable-slightly different:
KL73404
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First year |
1929
Tube leaflet collection E.Erb Analysis by original leaflets
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First Source
(s) |
Mar.1929 : Funk Bastler Heft 11, 1929
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Base |
4-socket Germany (Codex=Eo)
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Filament |
Vf 4 Volts / If 1.7 Ampere / Direct / Specified voltage AC/DC |
Tube prices |
4 Tube prices (visible for members
only)
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Information source |
Taschenbuch zum Röhren-Codex 1948/49
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4K170: 25 Jahre Telefunken
Wolfgang Eckardt
More ...
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Just Qvigstad
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4K170: Röhren-Handbuch 1995 Franzis-Verlag
Heinz Höger
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Collection of
Collection of a member from D
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