Antique radios, Old Time Radios
M104
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Country:
Netherlands
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| Identical to |
M104
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| Similar
Tubes |
Normally replaceable-slightly different:
B409
|
| First year |
1927
Tube leaflet collection E.Erb Analysis by original leaflets
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| First Source
(s) |
1927 : Radio-Expres, Netherlands
|
| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
|
| Filament |
Vf 4 Volts / If 0.35 Ampere / Direct / Battery = |
| Description |
Va=150, gm=2.
|
| Information source |
Taschenbuch zum Röhren-Codex 1948/49
Radio-Expres, Netherlands
- - Manufacturers Literature
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|
M104: Tabu Röhren-Codex, 1948
Anonymous 15 Collector
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Just Qvigstad
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M104: own collection
Peter den Boer
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