Help with op amp voltages

[caspercody]

I have been working on my Sansamp Classic to get it to work. And gone as far as removing all switches, and most of the input buffer. When this was all together, I had the controls cranked and barely got any noise. If I hit the strings hard I got the noise but sounded shorted, gated sounding. When I turned the volume control I get a crackle sound (crackle not okay). Now with switches removed, and input buffer still the same problems.
I am still getting almost 1 volt lower on my first stage of IC1 (see below). Does anyone have any voltage readings for this project? Should these pins all be close to the same voltage? What components affect the voltage for that first stage?



Q1
Drain 7.93v
Gate 4.183v
Source 0v

IC1
pin 1 4.381v
Pin 2 4.58v
Pin 3 3.67v
Pin 4 0v
pin 5 4.34v
Pin 6 4.38v
Pin 7 4.41v
Pin 8 7.93v

IC2
Pin 1 4.386v
Pin 2 4.386v
Pin 3 4.357v
Pin 4 7.91v
Pin 5 4.373v
Pin 6 4.383v
Pin 7 4.382v
Pin 8 4.36v
Pin 9 4.24v
Pin 10 4.25v
Pin 11 0v
Pin 12 4.354v
Pin 13 4.383v
Pin 14 4.359v

[caspercody]

MAKE SURE YOU HAVE YOUR JFETS IN THE RIGHT DIRECTION!!! This pedal calls for a 2SK117, and I can not get them. So I used a J201. Printed out the data sheets, and thought they just needed to be reversed. Nope, bend one leg to the side, and the middle out.

Never give up, I spent the last two nights trying to get this to work. Tonight using a audio probe (again) it just didn't seem right. Sound going into the gate but nothing out of the source. Than I looked at the data sheets (again). And finally saw it.

Now I need to solder all those switches back in. Think I will have a beer first...

[caspercody]

I did get this back all together, and now it works.

But I am still curious about the voltage on the first stage of IC1. Pin 3 is still less voltage than pin 2, or pin 1 and the distortion does not seem as much as in the demos I hear. I read in a article on Geofex that the voltages should be within mvolts of each pin. Right now I am reading:

Pin 1 4.2v
Pin 2 4.2v
Pin 3 3.8v