I am embarrassed to say I spoke too soon. *sigh*
After I finished the soldering job I had a problem with the overdrive channel cutting out. I could tap on the amp and the sound would return, but as soon as I hit a note on the guitar it would disappear. I thought the problem was unrelated, so I declared victory. Prematurely.
So I went in and touched up the relevant solder joints. This fixed the cutting out problem, but my crosstalk was back. It seems that V2A is inducing signal further down the signal chain, because I wasn’t getting the crosstalk when there was no signal on its grid. But why is it happening?
I broke out my scope, but I haven’t figured out much yet. The signal bleed seems to appear at the plate of V1B, but I don’t know why. There appears to be no signal at its grid or cathode. Granted I’m not an expert with the scope; I’m totally self-taught.
Anyway, the saga continues...
After I finished the soldering job I had a problem with the overdrive channel cutting out. I could tap on the amp and the sound would return, but as soon as I hit a note on the guitar it would disappear. I thought the problem was unrelated, so I declared victory. Prematurely.
So I went in and touched up the relevant solder joints. This fixed the cutting out problem, but my crosstalk was back. It seems that V2A is inducing signal further down the signal chain, because I wasn’t getting the crosstalk when there was no signal on its grid. But why is it happening?
I broke out my scope, but I haven’t figured out much yet. The signal bleed seems to appear at the plate of V1B, but I don’t know why. There appears to be no signal at its grid or cathode. Granted I’m not an expert with the scope; I’m totally self-taught.
Anyway, the saga continues...
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