Antique radios, Old Time Radios
CK5687
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Country:
United States of America (USA)
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| Identical to |
CK5687
= CV2578
= 5687
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| Similar
Tubes |
Other class quality (otherwise equal):
CK5687WA
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| Base |
Noval, 9 pin miniature (USA pico-9) B9A
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| Filament |
Vf 6.3 Volts / If 0.8 Ampere / Indirect |
| Description |
Dual triode for computer use. Heaters can be series connected, 12.6V, 0.4A.
Note the unusual base connections, with the heater center tap to pin 8 and the anode of second triode to pin 9.
Text in other
languages (may
differ)
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| Information source |
Universal Vade-Mecum, Electron Valves and Semiconductor Devices group 271
- - Manufacturers Literature
Tube Lore (I)
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CK5687: rtt
Anonymous 10 Collector
More ...
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Just Qvigstad
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CK5687: Manufacturer's Literature
Emilio Ciardiello
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