Troubleshooting distortion in Tube Amp
20 Dec 2017 20:47 #2589
I'm restoring a tube amp/preamp from an old stereo console. Vintage and model completely unknown. I've replaced all of the electrolytic caps but left the ceramic caps and resistors untouched. I have replaced all tubes with verified tubes. The problem is that I'm getting distortion in one channel. Swapping tubes around has no impact. I realize this is a broad/vague question but any suggestions on how to troubleshoot? I have a quality multi-meter but no capacitor checker, tube bias tester etc. and no schematic to test specific voltages. Any suggestions appreciated.
I didn't find the right solution from the Internet.