Sunface Si nte123a Troubleshoot

[jrios001]

Hi guys, I breadbored the following schem http://2.bp.blogspot.com/-kPHpS1i9PYc/U0k1rEh5MzI/AAAAAAAAGrk/jvx6QTwKEsM/s1600/Analogman+Sunface+BC108.png,
the only substitution were the nte123 , a 10k "sundial",a electrolitic input cap and I didn't use the 50k trimmer.
Connections look good, wiring etc works as it should. I am testing my finished builds with a pc oscilloscope
and the pedal does the asymmetric squared thing on the signal. I then played a clean guitar sound file and the
pedal worked great, volume gain bias knobs all worked. When I went to play it with the strat the bypass works
but I get no sound when I turn on the pedal, just noise at different levels on the pots.

Q1
C: 1.38
B: 0.58
E: 0
Q2:
C: 4.54
B: 1.39
E: 0.78

Thanks for your help

[GibsonGM]

Hi buddy, welcome.  The link takes us to a Layout, not a schematic....that means we can't see how the circuit is supposed to work!  That's the trouble with many layout sites - they don't provide the real stuff we need.

Just offhand, it sounds like you think you have a working fuzz on the scope...so could the real problem be in the switch wiring??  That is VERY often the problem, so I'd go over it 25 times to make sure it is correct...some kind of offboard wiring may be creating the issue...

[jrios001]

Sorry bout that here's the schem: https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwi8--mX5JPTAhVETSYKHXLrB8kQjRwIBw&url=http%3A%2F%2Fwww.coda-effects.com%2Fp%2Fcircuit-analysis-fuzz-face.html&psig=AFQjCNF6NlIlqNQ8RHNuPCR5M1p6xWpUjQ&ust=1491703894996649

This enclosure had another fuzz face circuit on it and it was working fine, I just swapped the boards, so I really don't think wiring is the problem. Are the
voltages in the ballpark?

[jrios001]

Bump

[Outlaws]

I built a couple of these off this layout with BC108 and BC109.  It works flawlessly.  So this is a verified layout in my own experience.

I presume you moved the effect input wire up to the upper right hole for the trimmer you left off?  Otherwise the input signal isn't actually going into the effect.  The wire needs to be moved to meet the 1uF cap, or a jumper added.

Can we get pics of the front and back?

Also, if max fuzz makes noise, add a 150pF cap accross Q1 Collector and Base.

[jrios001]

https://soundcloud.com/jrios001/sunface-project/s-tjkzf
Signal: pc -> pedal -> yamaha thr10c (it gets very loud)

the solder connections are clean, heres the top of the board:
http://imgur.com/a/9MTkG

Umm are the 2 cuts by the trimmer necessary if i skip it?

Thank you for your help.

[thermionix]

The black wire is ground, right?

[Outlaws]

https://soundcloud.com/jrios001/sunface-project/s-tjkzf
Signal: pc -> pedal -> yamaha thr10c (it gets very loud)

the solder connections are clean, heres the top of the board:
http://imgur.com/a/9MTkG

Umm are the 2 cuts by the trimmer necessary if i skip it?

Thank you for your help.

Do you have the Collector and Base swapped correctly on Q2?

[Outlaws]

I would also run a continuity test from the input tip of the jack to the input lead of the 1uF cap.  Then from that lead to ground.

[jrios001]

I got the ECB pinout correct, had to flip the collector and base right?

[jrios001]

I would also run a continuity test from the input tip of the jack to the input lead of the 1uF cap.  Then from that lead to ground.

It seems I'm not getting continuity on either jack tip to the lead.

[Outlaws]

I would also run a continuity test from the input tip of the jack to the input lead of the 1uF cap.  Then from that lead to ground.

It seems I'm not getting continuity on either jack tip to the lead.

The input one counts. Start probing continuity every step of the way from the tip.  You won't get a beep from the input cap to the output jack.