Comments on: A Tantalizing Look At The Electro Harmonix Hum Debugger

By: Larry C.

Larry C. — Fri, 03 Jun 2011 21:34:34 +0000

Mine eliminates at least 60% of the hum. The Hum DeBugger is the enemy of all dimmer switches, heh-heh. Now I can use my P-90 LP Special again at home.

By: Barton

Barton — Tue, 23 Dec 2008 13:38:27 +0000

Not a notchfilter as it removes hum and also any other noise such as lighting dimmer crackle. It is magic, however on Strat single coils when “Strong” is selected (some) sustained notes seem to pulsate. In “Normal” mode it is fine. Only had it for a few minutes and can say it certainly does what it claims with a slight colouration of sound. A great addition to in any effects chain.

It’s PATENT APPLIED FOR. Had a look for it on the web and not found the application – yet.

By: TB

TB — Wed, 20 Aug 2008 05:45:36 +0000

Not 100% sure but its most likely a 60 cycle notch filter: take the input and split it into 2 paths… track the hum and delay it a few ms to take one path out of phase… you can check out this web site for a basic design

http://www.national.com/ms/LB/LB-5.pdf#page=1

By: Brian

Brian — Wed, 14 Nov 2007 03:31:33 +0000

Hey, my Mother in law is letting me play her ES 125 also!

By: Dan

Dan — Tue, 13 Mar 2007 21:21:53 +0000

I’m definitely going to think about picking one of these up for an on old Gibson ES 125 that my Mother in law is letting me play. The hum is incredibly loud, I think the pots are bad on it though, but maybe not. Thanks for posting this.

By: Gordon

Gordon — Tue, 13 Mar 2007 12:35:21 +0000

I took a look on forums a while ago, and there were a lot of disappointed buyers. :(