Antique radios, Old Time Radios
T5-447
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Country:
Netherlands
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| Identical to |
T5-447
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| Similar
Tubes |
Other shape (e.g. bulb type):
5-447
; E447
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| Production stop |
Feb.1938 |
| Base |
Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Fco)
Top contact screw type.
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| Filament |
Vf 4 Volts / If 1 Ampere |
| Description |
This is a Thermiode, a glass tube in a shielding of nickel-iron alloy to prevent electric or magnetic interference.
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| Information source |
Taschenbuch zum Röhren-Codex 1948/49
- - Manufacturers Literature 1933
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T5-447
Peter den Boer
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Just Qvigstad
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