In Reply to: RE: Pre-Amp Kit 2.0. DC in Output, Help posted by Vincin on January 14, 2014 at 01:36:26:
Thank you very much Vincin,
I do not know too much about these things.
The Line Stage Board is quite simple, it has several resistors, the two ECC82 valves and three capacitors per channel:
1- 0.47 uF - 400V MKT big golden AN Copper Foil paper in oil and connected directly to the valve's plate.
2- 470 uF - 16V Electrolytic connected directly to the valve's cathode.
3- 100 uF - 450 V Electrolytic connected to ground.
I guess the bad ones are the No. 1 ???
One channel has ~2 DCV output the other one ~10 DCV output!!!.
I measured the capacitors with my capacitor tester and seems okey. Are these DC leakings detectable with these tester ?
Thank you again.
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- RE: Pre-Amp Kit 2.0. DC in Output, Help - J Corner 06:56:28 01/14/14 (0)