Enzo - Removing Peavey Pots

[nosaj]

If I have a reasonably large lead free solder removal task, I usually flow some lead solder into the joints first to ease the removal.

Back on the road (1960s) I recall a couple times I had to replace a Celestion in a Marshal 4x12 cab on a set break. We had no such thing as battery drills then. I took all 150 screws out of the cab back with a worn phillips screwdriver. Then put then back in to close. Would have killed for a cordless drill with a screwdriver bit.

Bet you had some pretty good forearms.

nosaj

[olddawg]

It shouldn't be a big ordeal and you shouldn't be lifting traces. If you are the iron is either too cold and you are taking too long or too hot and you are delaminating the traces. Wedge tip, liquid flux, solder braid, ChipQuick at the end if necessary.

[Randall]

I just pulled the trigger on the Aoyue 701++ all digital system for $185 shipped. If I get 10 years out of occasional use I'll be happy. Sure beats $500 - 600.

[lowell]

Cool! Let us know its keeping up in 6 mos.

[Jazz P Bass]

Keep the desolder tube clean.

And the filter pads must be moistened daily.

[Tone Meister]

Back to the job at hand, I'd like to hear the process that led to determining that all 18 pots needed changing? I'm just a hack and the most I've ever changed on any unit at once was three, and that amp had been exposed to salt air for many years.

I can spell "Enzo" though.

[lowell]

I believe I stated in my OP that I spray cleaned em all twice with about 50 or more turns a piece after each spraying. They were still so bad that signal wasn't passing. And most of them were causing problems so i went ahead and did all 18 to mitigate it coming back in 6 mos for the remaining ones. I'm in Pensacola and this is a trend in the area with the humidity and salt.

[Randall]

I'm on the Gulf Coast about 300 miles south of lowell, and it's by far the biggest and most common problem with gear here. The humid coastal air just eats everything.

[Tone Meister]

Makes sense now. I was just wondering if there was something I was missing.

[Tone Meister]

I just repaired a Fender Princeton Chorus that had lived 15 years near Galveston, Texas. I had to replace every jack on the PCB and two pots because of salt-air corrosion. Now I fully understand.

[TimmyP1955]

In my hi-fi days, PCBs that came back from Puerto Rico would have traces corroded completely through, in spite of having a protective coating. I didn't see that on PCBs from anyplace else.

[1ampman]

Some pots are plain garbage. Should have never been used. Some young dudes place the amp in the car face down, putting pressure on the knobs/pots.....

[The Dude]

And, some will spend 2 grand on an amp, but won't put up a few hundy for a road case.