Blew HT fuse on 800 clone

[Turd Ferguson]

did some more testing and I hooked up the multi meter to V1 pin 3 and is was 17mv as I left it hooked up it got very erratic voltage reading all over the place up and down but not a steady increase or decrease very erratic!!

What the hell?

[Turd Ferguson]

did some more testing and I hooked up the multi meter to V1 pin 3 and is was 17mv as I left it hooked up it got very erratic voltage reading all over the place up and down but not a steady increase or decrease very erratic!!

What the hell?

[Turd Ferguson]

as I move the tube it makes a lot of noise hissing and popping I think I am going to replace the socket it looks kind of generic anyway but it still will not explain the low voltage on pin 3!!

[Littlewyan]

If its hissing and popping then it will be a bad socket.

[Turd Ferguson]

I replaced the socket no noise still didn't help the low voltage on V1 pin 3!! I did some more testing and I found the problem, on the bottom of the board something is touching the chassis!! put the multi-meter on continuity setting and on positive side of caps were conductive to chassis grounding it self somewhat! I lifted the board away from the chassis and low and behold all voltage is good and the amp sounds great again!!

Thanks everyone I greatly appreciate the help you rock!!

Turd

[Littlewyan]

Might be a stray wire, or even something as small as a strand of wire will do it. Glad you worked it out though. Issues like that are so annoying! Hope you've still got hair left!