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TOPIC: Troubleshooting distortion in Tube Amp

Troubleshooting distortion in Tube Amp 20 Dec 2017 20:47 #2589

  • Shawnturner
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Hello,
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.

Please help.
Thanks,
I didn't find the right solution from the Internet.
References:https://forum.allaboutcircuits.com/threads/troubleshooting-distortion-in-tube-amp.75369/

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