power supply hum in orange squeezer

[rpjones]

Just built an Orange Squeezer clone on a GGG board. It sounds fabulous with a battery, but it hums like mad when using a 9v adapter. The wiring and solder joints look good, is this just a problem with using a wall wart? Maybe something that is better regulated like a Pedal Power2 is needed? Thanks.

[cmat]

What kind of adapter are you using?

[petemoore]

is this just a problem with using a wall wart?
 Could be, sounds like it. Try a big and really small filter cap arrangement with the 100ohm resistor filter trick on it. I've had that problem before and was hard to ditch it.
 Maybe something that is better regulated like a Pedal Power2 is needed?
 VS-1 Spot'd do it, but if you're running buncha pedals daisy chain like I was, a VDLPP2 [I got the 2+], cures all ground loops by floating the regulated outputs.
 Everything I could want in a [6 output +2 adjustable V outputs = 8 output]  PS, except maybe one more output, which it has except it's an 120VAC output, good for driving a 1-SPOT..lol.
 IEC input...very nice !
 Thanks.

[rpjones]

What kind of adapter are you using?

it is a DOD PS200R, 300 ma regulated. It works well with my other pedals but this Squeezer doesn't like it at all!