Hello all, first post and begging for help. Not a good way to start! Anyway I have built 7 amps, mostly tweeds and a 18watt marshall without problems but this one has me stumped.
The #2 inputs work as supposed to, but I can get nothing out of the first set. I get a large thump when turning the loudness 1 pot that repeats itself around the 2-3 position every time, but nothing from guitar. I replaced the pot thinking it might have gotten hot when soldering the buss bar to the back, but the new one behaves exactly the same.
I have attached voltage charts with all voltages listed with power tubes out and with kt66 tubes in. I will gladly snap whatever pics you guys need.
This thing has me at wits end. Im sure its something stupid, but I have retraced everything and cant seem to find anything wrong, although there obviously is. Thinking I need to use a large hammer to find the problem!
Power tubes out
Power tubes in
help with new jtm45 build, #1 inputs not working
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