Don't pull them. The difference in the value is possibly why the voltages read so different.
Is the increase in current draw the same (500ma or whatever you used) when you read all of the different voltages?
Is the increase in current draw the same (500ma or whatever you used) when you read all of the different voltages?
I may not be understanding the second question, but when I checked the voltages, I had not touched the bias pots since each channel was set to 500 mA. When I checked the voltages the amp was idling at ~3.2 amps. 1.2 A + 4*500 mA.
It would be best if the two parallel FETs had the same current flow. If the resistors have a different resistance, they won't at idle.
You stated that you didn't change the bias settings but I think you said you increased to bias and got the clipped channel clean. Did I misread?
You stated that you didn't change the bias settings but I think you said you increased to bias and got the clipped channel clean. Did I misread?
That is true, I did adjust the pot on one channel to clean up the signal earlier. It was very slight, not much more than just putting the screwdriver in.
I should have said I had not touched them since that post.
I should have said I had not touched them since that post.
FWIW I have a GT-22 here that had an imbalance between R/L channels. Upon closer scrutiny of the PCB I discovered a trace was burned that connected to the RCA shields, like it either had a very bad ground loop or the power wire touched the RCA's or something like that. Anyhow the trace also ran directly under one of the front end OPAMPs which probably overheated it, replacing that chip solved the problem. They are nice sounding amps but a bear to work on.
I appreciate the info!
I hope I'm done with this one. I am going to bench/ burn-in test it in the next day or two then come back and finalize this thread.