Humming on newly installed pickups

alwyn42

New member
Heya, I recently acquired a used SD Custom Custom Bridge and a Gibson 490r neck.

After installing them on a Maison LP copy I have, I noticed that both of the pups have a really loud and annoying hum when I turn the dirt on. When I'm playing clean and on lower volumes, it's pretty quiet, but when I turn it up, the humming gets pretty loud on the clean channel.

Thing is, it didn't have that problem with the old pickups (stock covered and wax potted oned that came with the guitar) so it's either my soldering job is bad, or the pickups are just naturally like that.

My 2 other guitars which have ceramic pickups (and have an equally bad or even worse solder job lol) have a hum on high gain, but it's barely noticeable.

I'm planning to add covers and wax pot the newly acquired pups; would that help fix the hum? I also noticed that the pickups are more microphonic than the old ones.

Or did I just get bad pickups?
 
Re: Humming on newly installed pickups

Check all the grounding cables in the guitar if one is come loose or broke inside the cover plastic.

Had the same problem once.
 
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Re: Humming on newly installed pickups

I doubt both of your pickups are bad.
Check to see if the jack is wired backwards. Go over your soldering one at a time, and if these don't do it, post pics of your work. We'll get it sorted out.
 
Re: Humming on newly installed pickups

The coils are balanced, so I haven't noticed any more hum than any other humbucker. The Hybrid has a little hum, but I never notice it unless there is a lot of gain. I don't notice any hum from my CC.
 
Re: Humming on newly installed pickups

Thanks for the tips, I re-soldered everything, and it's all working pretty great. I must have missed a ground wire or maybe had a bad solder joint somewhere. It's even quieter than the old pickups I had. lol
 
Re: Humming on newly installed pickups

Great! I am happy it turned out well. How do you like the sound of them?
 
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