Noise Problems with Clari(not) build

Started by Jamforthelamb, March 01, 2014, 10:36:49 AM

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Jamforthelamb

Hey Guys,
I built a Clari(not) using the vero layout over at tagboard effects http://tagboardeffects.blogspot.com/2012/02/mid-fi-electronics-clarinot.html, but I'm having some issues with noise. It kinda of works, but the tracking knob doesn't really seem to do much also. The noise varies between a lot of white noise, motor boating, and random clicks and pops (especially when I'm not playing anything), and when I use the fuzz lift switch the signal is not clean, and seems almost like it's clipping (in a bad way) I've built quite a few pedals, and really tried to take my time with this watching my soldering and component placement. Here are my voltages:

Supply Voltage: 8.93

PT2399
Pin 1: 4.92
Pin 2: 2.37
Pin 3: 0.01
Pin 4: 0.00
Pin 5: 2.59
Pin 6: 2.14
Pin 7: 4.49
Pin 8: 4.49
Pin 9: 4.74
Pin 10: 0.71
Pin 11: 0.64
Pin 12: 4.73
Pin 13: 2.43
Pin 14: 0.25
Pin 15: 4.86
Pin 16:-0.07

Lm386
Pin 1: 1.30
Pin 2: 0.01
Pin 3: 0.00
Pin 4: 0.00
Pin 5: 3.97
Pin 6: 8.21
Pin 7: 4.15
Pin 8: 1.30

Thanks!

anchovie

Pins 14-16 of the 2399 should have near to 2.5V on them, so check around that area.
Bringing you yesterday's technology tomorrow.

Jamforthelamb

Thanks so much Anchovie!
I found that I had mis-positioned one of the 22k resistors in that area by only one row.  :icon_redface:
Got it sorted and now I have crazy pitch bending delay madness as intended  ;D

Thanks again!

glops

It's one of the most fun effects I have built. I just built a pedal the has two of them that is switchable. Too bad only one side works!