Hum

Amplifiers, effects, pickups, electronic components, wiring, etc.

Moderator: Dave Mudgett

User avatar
Larry Allen
Posts: 1566
Joined: 5 Apr 2004 12:01 am
Location: Kapaa, Kauai,Hawaii

Hum

Post by Larry Allen »

S10 Excel guitar, NV112, Telonics 84PU & Vol pedal...Same kit for 20 years...very low hum developed; pedal on full, amp set for studio volume , as soon as I turn on the tone control (just on ) the hum is gone...?? Not audible when band is here...everything grounded .......Larry
Image :eek:
Excel steels & Peavey amps,Old Chevys & Motorcycles & Women on the Trashy Side
Top
User avatar
Lane Gray
Posts: 13561
Joined: 4 Aug 1998 11:00 pm
Location: Topeka, KS

Post by Lane Gray »

I'd check for chassis ground on the tone pot. Remove pot, look at the mating surfaces, clean and sand lightly.
The cap might be dying, as well. They're cheap.
2 pedal steels, a lapStrat, and an 8-string Dobro (and 3 ukes)
More amps than guitars, and not many effects
Top
User avatar
Larry Allen
Posts: 1566
Joined: 5 Apr 2004 12:01 am
Location: Kapaa, Kauai,Hawaii

Post by Larry Allen »

Lane..my next move is to replace the cap...grounds are clean....I’ve got to dig out my old Guitar Electronics book to see how to check the cap...thanks for your input...Larry
Excel steels & Peavey amps,Old Chevys & Motorcycles & Women on the Trashy Side
Top

Return to “Electronics”