[sdiy] Humming noise in JH reverb circuit

Paul Perry pfperry at melbpc.org.au
Wed Oct 3 09:07:06 CEST 2012

If there is a transformer nearby (within 50cm or so) you could be picking up 
a magnetic field, and it takes a thick layer of iron to sheild that (more 
practical is to change the orientation of the tank, if possible.)

paul perry Melboune Australia

----- Original Message ----- 
From: "Ullrich Peter" Subject: Re: [sdiy] Humming noise in JH reverb circuit

>You should also ground the metal housing of the reverb tank...

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