Howling LP Deluxe

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Howling LP Deluxe

Post by corvairdoug » Sat Nov 30, 2019 6:07 pm

I have a 1978 Gibson LP Deluxe, with the mini humbuckers. It's my "spare" at gigs currently. My main is an EPI LP Std, with stock pup in the neck, and a JB in the bridge, 50's wiring w Bumblebees, and CTS pots. The problem I'm having, is the EPI is fine on OD1/amber, but the Gibson howls and feeds back like crazy, to the point of uncontrollable. So bad that I have to go to green or Crunch to tame it.
Any ideas why such a big difference?
I'm not very familiar with the old 70's mini pups, but I'm betting that's the answer.
78 LP Deluxe Goldtop; 79 Strat; 98 Korina Epi Explorer; 11 EPi LP; late 80's Seagull 12; JVM 410H with Choke mod & Anti Stiffness mod; Home built cab w G12T-75s & Vintage 30s

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Re: Howling LP Deluxe

Post by okgb » Sat Nov 30, 2019 6:48 pm

Maybe they need to be " potted " ?
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Re: Howling LP Deluxe

Post by Greg_L » Sat Nov 30, 2019 7:00 pm

I'm betting those pickups are microphonic.
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Re: Howling LP Deluxe

Post by rockat » Mon Dec 02, 2019 1:13 pm

Yep get the pickups potted. Gibson in the past did not pot there pickups. Had one myself a Gibson logo PU from early 70’s which howled like a pig until I had it potted. Worked fine afterwards.

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