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Another Zombie Disaster

Started by flanagan0718, January 30, 2014, 09:20:28 PM

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flanagan0718

Hey Guys,
     Looking for some help/advice. So I decided to build a zombie chorus...against my better judgement. I'm having some issues getting it going. I'm getting dry on and off but there is barely any modulation coming through. When I turn the rate pot there is an effect but not when it is stationary. I've tried 5 different MN3007 chips and 3 different CD4046BE chips too. I also put a new set of TL072 s in there. I also tried cutting a new strip board too. This thing is starting to drive me nuts. I did order a Pork Barrel and started populating it but i still want to get this going to. Here are the voltages and a picture of the layout I used.

MN3007
pin 1-9.6
pin 2-4.5
pin 3-5.5
pin 4-0
pin 5-0
pin 6-4.5
pin 7-6.2
pin 8-6.2

CD4046BE
pin 1-0
pin 2-4.50
pin 3-4.60
pin 4-4.60
pin 5-0
pin 6-0.97
pin 7-0.97
pin 8-0
pin 9-4.16
pin 10-3
pin 11-2.93
pin 12-7.05
pin 13-0
pin 14-9.6
pin 15-0.5
pin 16-9.6

TL072 (bottom one)
pin 1-1.8
pin 2-3.6
pin 3-0.46
pin 4-0
pin 5-5.5
pin 6-6.3
pin 7-6.3
pin 8-9.6

TL072 (top one)
pin 1 4.4
pin 2 4.3
pin 3 4.4
pin 4 0
pin 5 4.3
pin 6 4.5
pin 7 4.2
pin 8 9.6

flanagan0718

I tried a different layout and it worked the first time. All set


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