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In Reply to: RE: RCA 5691 Vacuum Tube posted by tlowe on July 24, 2021 at 22:43:05:
The 5691 draws twice the heater current as a 6sl7 and in some heater power supply designs this will cause major problems.
Were you taking that into account?
Tre'
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- RE: RCA 5691 Vacuum Tube - Tre' 07:34:50 07/27/21 (0)