[sdiy] Humming noise in JH reverb circuit

[Paul Perry]

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...