Antique radios, Old Time Radios
I1304
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Country:
Netherlands
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| Identical to |
I1304
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| Similar
Tubes |
Other shape (e.g. bulb type):
E428
; REN904
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| Production stop |
Feb.1938 |
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Successor Tubes
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5-428
|
| Base |
Europe 5-Pin , B5 (Eu O, F, O5A) 1928
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| Filament |
Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC |
| Description |
HF amplification, detector and LF amplification, resister coupling.
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 |
Universal Vade-Mecum, Electron Valves and Semiconductor Devices group 100
- - Manufacturers Literature 1933
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I1304
Peter den Boer
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Just Qvigstad
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I1304: own collection
Peter den Boer
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