[EyeballGrowth]

My Sovtek Big Muff Pi that I've had since 1994 has seemed to have broken in a good way. It still transmits the sound, just with a HUGE hum in the background. I tried turning the tone knob down from the bassier side, and the hum never stops but when it gets to the middle halfway inbetween treble and bass, it starts to make this crazy sound, the hum in the background starts to let just a little fuzz in for a tiny moment, and that moment seems to get bigger as it gets towards treble so you can set it how you want. The sound really " Bleeds in " is a good way to describe how it sounds.It sounds alot like something that SY would use or Ronald Jones if you know your Flaming Lips history.

Anyways, I can't get it to go back to how it used to sound originally. This would mean it's broken right?

One more question. I have a pedal that doesn't have a battery in it, but it just stopped working, and simply won't light up when stomped and it's only a 3 year old pedal. Does that mean it's just blown out? I think when I just hooked up my pedalboard, the adaptor powering the board may have blew out inside or overcharged and the pedalboard just stopped working, and when i plugged it back in, two pedals either didn't work or sounded fucked up. Could that maybe have caused burnouts or something?

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repair a big muff is quite easy because it hasnt any transistors and things like this, but you should be able to use a 'tester' to do that I think.Try to ask to someone into electronic things.

[unlurker]

humming is _usually_ an internal grounding problem.
try this:

first:
make sure that that the nuts on the input and output jacks are nice and tight.

test.

if that doesn't do it,
Second:
open up the case carefully....
once open, inspect.
poke around gently on the wires. see if any are disconnected from the circuit board, pots, input and output jacks.
take your time and look at EVERYTHING.
i've seen the inside of some eh stuff and it ain't pretty.
so more than likely, it's just a broken solder connection to one of these points.
of course, if you find a broken joint, yl need a soldering iron to repair it.

good luck

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good advice unlurker it could be even just a broken joint!

[SpectralJulianIsNotDead]

Originally Posted by unlurker

humming is _usually_ an internal grounding problem.
try this:

first:
make sure that that the nuts on the input and output jacks are nice and tight.

test.

if that doesn't do it,
Second:
open up the case carefully....
once open, inspect.
poke around gently on the wires. see if any are disconnected from the circuit board, pots, input and output jacks.
take your time and look at EVERYTHING.
i've seen the inside of some eh stuff and it ain't pretty.
so more than likely, it's just a broken solder connection to one of these points.
of course, if you find a broken joint, yl need a soldering iron to repair it.

good luck

sounds about right.

Also, usually in circuits near the input there is a cap to ground, maybe it blew?

[unlurker]

so,

did you try to fix it yet?

[CHOUT]

http://www.ronsound.com/
This guy does pedal repairs if you can't figure it out.

[EyeballGrowth]

Ha, it fixed itself somehow. Interesting

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very interesting! automatisms