Antique radios, Old Time Radios
KI25/5
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Country:
Netherlands
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| Identical to |
KI25/5
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| Similar
Tubes |
Multiple differences or of other kind:
F704
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| Production stop |
Feb.1938 |
| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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| Filament |
Vf 7.5 Volts / If 1.2 Ampere |
| Description |
They were supplied with a half indirect kathode and B4 base as plug-in replacement for the Philips F704 and with a indirect kathode, connected to the sidecontact, also with B4 base. See pin assignments.
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| Information source |
- - Manufacturers Literature 1933
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KI25/5
Peter den Boer
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Just Qvigstad
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