How to trace Fix tube guitar amp noise Hiss Harmony 415 Part 2 D-Lab Tek Tip 

Part 2 complete. I spent the morning sifting thru the Harmony amp, seeking sources of noise. Found quite a few! Mainly, poor grounding and of course those corroded input jacks. Part 3 will show the MP3 input addition and hopefully the owner taking it for a spin. This has been a great project. Thank you all for your kind support. I'm doing my best with the time allowed. The donations have been a real blessing. Keeps the shelf's stocked and video rolling! More good stuff on the way..TD