Koi
New Member
Thank you all for your concern.
Normal voltage in my location is 114V, 107V after the evening.
After the boost winding the dc voltage from:
375V 370V 340V <-Dave standard
305V 304V 288V <-no boost winding
312V 310V 300V <-boost winding
The same result when replacing JJ 5ar4 rectifier.
It still can't adjust over 0.32Vdc,Is there any other way?I am not an electronics engineer,Can't fix it by myself.
Slightly asked, if I run 0.32Vdc BIAS, in addition to the power reduction, does it affect my vacuum tube?
Normal voltage in my location is 114V, 107V after the evening.
After the boost winding the dc voltage from:
375V 370V 340V <-Dave standard
305V 304V 288V <-no boost winding
312V 310V 300V <-boost winding
The same result when replacing JJ 5ar4 rectifier.
It still can't adjust over 0.32Vdc,Is there any other way?I am not an electronics engineer,Can't fix it by myself.
Slightly asked, if I run 0.32Vdc BIAS, in addition to the power reduction, does it affect my vacuum tube?
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