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Topics - jwhk

#1
Hi madbean forumites!
    I've been a long time reader here on the forum, but this is my first post. Hopefully y'all can help me out.

I etched and populated a single sided Sunking V.3 board, wired it up for true bypass, and I'm getting squealing that gets louder as the gain knob is turned CCW and lower as it is turned CW. It eventually cuts completely in the fully clock-wise position. The tone is very distorted and sometimes goes into oscillation, and actually sounds kind of like a Fuzz Factory. I pulled out my DMM and here are the voltages. I can't make heads nor tails of the readings. lol. The charge pump I used is a LT1054CP. Thanks in advance guys!

IC1 (TL072CP)
1.) 9.24   
2.) 9.24   
3.) 6.32   
4.) 0.00
5.) 9.23 
6.)9.15
7.) 8.82
8.) 9.27

IC2 (TL072CP)
1.) 9.4
2.) 9.26
3.) 9.24
4.) -8.83
5.) 9.24
6.) 9.25
7.) 9.11
8.) 16.76

IC3 (LT1054CP)
1.) 9.27
2.) 4.93
3.) 0
4.) 4.1
5.) 8.85
6.) 2.54
7.) 1.36
8.) 9.27