I need another simple boost pedal, so I built a Lovepedal Deluxe Sixty and a EHX LPB-1 today. I'm having the same problem with both of them though. I hard to describe audio, so here's a clip:
Is it a power thing? I'm using a Visual Sound One Spot, if that's relevant (works perfectly fine with other pedals).
Hey! A very good method to find out if the noise is coming from your supply is to test them out with a battery. If you still have noise then, something else is wrong.
Also, are the circuits in enclosures or are you just bare-testing them?