Antique radios, Old Time Radios
4631
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Country:
Netherlands
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| Identical to |
4631
= CV1311
= CV1664
= 4020A
= R87
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| Similar
Tubes |
Other shape (e.g. bulb type):
3A/108A
Heater and shape different:
4607
|
| Base |
UV-Base (4 Pins+Bayonet, USA 1914 WE) (Codex=Bo)
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| Was used by |
Telephony |
| Filament |
Vf 2 Volts / If 0.25 Ampere / Direct |
Dimensions (WHD)
incl. pins / tip |
52 x 115 x mm / 2.05 x 4.53 x inch |
| Information source |
Babani, International Radio Tube Encyclopaedia p. 40 & 41
- - Manufacturers Literature
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49
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4631: ARRL Handbook 1972
Anonymous 10 Collector
More ...
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Just Qvigstad
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4631: Röhrenhandbuch Franzis Verlag
Heinz Höger
More ...
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