Madbean Zombii not oscillating

Started by Richard6, May 17, 2012, 02:20:54 PM

Previous topic - Next topic

Richard6

I can't seem to figure out why I can't get the Zombii to squeal. Q1 is a 2n3904. Q2 is a GE with 99 Hfe and Q3 is a GE with 160 Hfe. Is this too high for both spots? Also, will changing the 47k feedback resistor help any?

sgmezei

Are Q2 and Q3 Germanium PNP transistors?

Richard6

Yes, they are a matched Fuzz Face set from Smallbear.

sgmezei

are you able to post any pictures of your board? I know mine squeals like a banshee.

Richard6

I could....but I don't think it would help. It did the same thing when it was on the breadboard. I used pots out of my parts bin that were ripped out of an old stereo. I've got some new pots and Ge trannies on order. Funny thing...I hate it when my Dr Boogie squeals!