[sdiy] Building the ASM-1 Noise Source

[mmanard at columbus.rr.com]

I breadboarded the ASM-1 Noise Source:
http://home.swipnet.se/cfmd/synths/friends/stopp/asm1ns.pdf

I built the White and pink noise portions so far.

It's the first time I've actually breadboarded a circuit (as opposed to using a premade PCB). The noise works (kinda) but there's 60cycle hum that's pretty loud. I'm running on a MOTM powersupply. I assume a groundloop but nothing I do changes it. Except one thing I notice is that if I remove the groundwire from the output jack the hum lessens about 50% but still pretty loud. Another thing of note I did was use fairite beads instead of the 22R resistors on the power input. When I use the 22R resistors it doesn't make noise but just makes an oscilalting squealing sound. I've tried 2 transistors so far.

Well, I'm a newb so hopefully I explained well enough my issue.
Any thoughts?

- Michael nil-x
- Pressure : Penetration