I figured I'd start a know thread for this one because I'm totally flummoxed by this problem. I rewired all of the tube sockets and reflowed all of the components on the board and the crackle at the MV continued.
I set out to check my voltages and that's where all the weirdness begins.
No tubes installed.
Wall 124VAC
Indicator to Mains 124VAC
Power switch both lugs .415VAC
Power switch to fuse .415VAC
Fuse to AC mains .408VAC
Heaters at tagboard 3.5VAC
Rectifier:
Pin 1 320VAC
Pin 7 320VAC
Pin 5 3.7 VAC
Pin 4 8.08 VAC (should be 0)
B+ on cap can 11.5 VDC
I followed this layout
viewtopic.php?t=493This layout shows the black and white mains neutral from the transformer going to the pilot light.
For the rest of the amp I followed the layout from 12/3/05. This layout shows the black and white mains neutral from the transformer going to the bottom lug of the power switch.
Which way should it be wired and could this be part of the cause of the crackle problem? I'd like to get this sorted out cause I'm itchin to play.
Thanks,
Joe