Help.

[murf214]

Just installed a SH-11 in my LP. Now I'm getting an awful squeal instead of nice controllable feedback. What did I do wrong?

[STRATDELUXER97]

Just installed a SH-11 in my LP. Now I'm getting an awful squeal instead of nice controllable feedback. What did I do wrong?

Tell us about the pickup height...Good solder connections/ground etc..Does the pickup have a cover and did you put a cover on it etc..

[murf214]

The height was a little more than 1/16" but I lowered it to even with the mount, and the pickup has the cover it came with. The solder joints may not be the best.

[murf214]

The squeal goes away when I lower the tone a little

[STRATDELUXER97]

If you tap on the pickup cover can you create the noise? Same thing with the pots for that pickup..Is the noise high pitched and just like a mic squeal?

[murf214]

It's similar to mic squeal. My amp is at my rehearsal space and I left for the night so I can't tap it. I'll try that tomorrow. If it squeals when I tap it, what is that a sign off.

Thanks

[astrozombie]

Microphonics. May need to be potted (or re-potted). The process itself isn't complicated, but I wouldn't recommend it to a novice.

[astrozombie]

Does it squeal when you raise the volume and face the amp?

does it squeal on the clean channel?

[murf214]

Does it squeal when you raise the volume and face the amp?

does it squeal on the clean channel?

At low volume it does not squeal but when turned up to band level (same level it's always on) it sqeals badly.

[murf214]

Microphonics. May need to be potted (or re-potted). The process itself isn't complicated, but I wouldn't recommend it to a novice.

I hope not. It's a brand new pickup.

[murf214]

So I re-wired it nice and neat. Black to hot, green and bare to ground and red and white together. Then I plugged it in to my little Marshall mg10, turned up the gain and it still did it.

[murf214]

If you tap on the pickup cover can you create the noise? Same thing with the pots for that pickup..Is the noise high pitched and just like a mic squeal?

Tapping the cover or the pots does not reproduce the squeal.

[Stef]

http://www.seymourduncan.com/forum/s...d.php?t=212768

[murf214]

http://www.seymourduncan.com/forum/s...d.php?t=212768

Is it common for brand new pickups to need potting?

[ehdwuld]

did you say it came with a cover?
have you manipulated the screws that come thru the cover?

1/16 of an inch is awful close

yea sounds like microphonics to me

[murf214]

did you say it came with a cover?
have you manipulated the screws that come thru the cover?

1/16 of an inch is awful close

yea sounds like microphonics to me

The screws are factory set and I have lowered the height to below the level of the plastic housing on the guitar.

It had an un-potted burstbucker 2 in it before and it didn't squeal.

[ehdwuld]

covered burstbucker?

is the cover factory or aftermarket

is it metal?

it should have a solder joint on either side on the bottom to keep it from vibrating
and to provide a ground connection

[murf214]

Yes the BB was covered and the SH-11 has the factory nickel cover. I'll check the solder joints on it now.

[murf214]

[ehdwuld]

hard for me to see
do you see any lines in the solder joints ? cracks?
can you tug out, not real hard but firmly, to see if the joints are solid?

if so touch em a bot with a iron to "reflow" the solder