[sdiy] Reverb picking up power supply hum

[Paul Perry]

"I know building a little case for my power supply and leaving it external 
would work, but that is definitely the last thing I will do."

I think it is the FIRST thing that I would do, because I am almost certain 
that the reverb coil is picking up magnetic hum radiated from the power 
supply. No amount of dicking around with grounding will help, if that is the 
case.
It may bepossible to find an orientation of the PSU and reverb to each other 
that will null the hum - but it is unlikely to be a convenient orientation!

paul perry Melbourne Australia