SOLD - WANTED: Tubes needed for Fisher 600 restoration project
Item #649379028Info: Tubes needed for Fisher 600 restoration project
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Sep 14, 17 5:27pm (PST)
Edited: Oct 04, 17 10:17am
North York,Toronto, ON
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2 x 6HA5 / 6HM5 / EC900
2 x Nuvistor 6CW4 / 6DS4 tubes
(6CW4 = 6С52Н-В)
13CW4 ; 2CW4
First Source (s)
04.Jul.1960 : Electron Tube Registration List
Successor Tubes 6DS4
Filament Vf 6.3 Volts / If 0.135 Ampere / Indirect / Parallel, (AC/DC) /
Description The 8056 is NOT electrically the same as the 6CW4 - as one can read sometimes. It has a lower gain (12 vs 68 for 6CW4), and a higher plate current at a lower voltage (9.5mA @ 24V vs 7.2mA @ 70V for 6CW4). The plate characteristic curves are quite different.
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