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Guitar Amp
#13

I pronounce it fixed. I replaced the rest of the e caps, put back together and found some of the cracking static came back until it warmed up. I pulled both boards and resoldered a bunch of suspicious looking connections. I put back together kinda loose to be able to flex things and pull again and had no sound at all! Huh ... so after some messing around I found flexing the board made the sound (and static) come and go and could see the output tubes flash inside (not sparking, you know -the look inside when the tubes are handling current). Well, I discovered the outputs were grounded through the screws and stand-offs that hold the octal tube sockets to the metal chassis! So, I went back and cleaned and tightened those screws very tight - quiet as a church mouse! So, if anyone has one of these amps with static/cracking noises and cleaning controls and replacing tubes doesnt completely quiet it, clean those studs or solder a ground to those to chassis ground. I still have a very light, low level hum, but I think it is the nature of the beast for the most part. It's not really HiFi, so it may not be completely quiet like a Fisher or Dyna.

If I could find the place called "Somewhere", I could find "Anything" Icon_confused

Tim

Jesus cried out and said, "Whoever believes in me , believes not in me but in him who sent me" John 12:44


Messages In This Thread
Guitar Amp - by TV MAN - 10-03-2019, 12:07 PM
RE: Guitar Amp - by morzh - 10-03-2019, 12:15 PM
RE: Guitar Amp - by TV MAN - 10-03-2019, 12:30 PM
RE: Guitar Amp - by mikethedruid - 10-03-2019, 12:41 PM
RE: Guitar Amp - by Eliot Ness - 10-03-2019, 01:31 PM
RE: Guitar Amp - by Ron Ramirez - 10-03-2019, 02:25 PM
RE: Guitar Amp - by TV MAN - 10-03-2019, 09:37 PM
RE: Guitar Amp - by Ron Ramirez - 10-03-2019, 09:39 PM
RE: Guitar Amp - by morzh - 10-04-2019, 08:48 AM
RE: Guitar Amp - by TV MAN - 11-23-2019, 11:36 AM
RE: Guitar Amp - by morzh - 11-24-2019, 03:09 PM
RE: Guitar Amp - by TV MAN - 11-28-2019, 11:05 AM
RE: Guitar Amp - by TV MAN - 12-15-2019, 07:07 PM
RE: Guitar Amp - by Ron Ramirez - 12-15-2019, 10:14 PM



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