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Any update on your progress? You get the LM13700 yet? About LED position, it was just 5mm perhaps, not in the cm range, so not too bad, but annoying when I have to "dismount" and "re-mount" it. In another thread I wrote about issues I have had with distortion. Seems I need to learn more how...

Findings: I put on headphones, and turned off the speaker. There is still that sort of oscillation. Like a tremolo on low depth and mid to slow rate. I flipped the speaker on and off but it had no impact as far as I can tell. I am quite untrained in compression though (still can't hear ATTACK...

Yes, the talk with Origin was around their Cali76 CD vs Stacked, and if distortion is inherit in compression when you dial in extremes (IMHO, it is)

Great, thanks. I got the idea from Jacob at Origin Effects where he mentioned that more headroom could alleviate one of the two main distortions: "Either you run out of headroom and you're causing a clipping style distortion, or you have really aggressive compression settings and the compressor...

What would be the negative impact of having R10 on 1k while trying 18V? And would say 2k cause provlems for 9V? Thinking of having some switch or similar or just setting it to either fixed value

Many thanks!

Many thanks. Yes, I saw that page. Couldn't figure out what the 3mm LEDs can take, but they seem to be where I am wild guessing, 18V wouldn't hit them too hard? Would you think engineer's thumb is a less distortion prone build? IMHO, they seem to be very similar in schematics though... Would...

It seems the electrolyte caps are 25V or more, The LM13700 can take 36V and the TL072 more. The film caps take 100. The diodes and 3mm LEDs and a 100pF ceramic I don’t know... Will await confirmation or educated guesses before trying to fry anything EDIT: And 2N3906 should manage 60V it seems...

Settings I moved around a bit with, but about: RATIO 1:30 THRESHOLD 2:00 ATTACK 10:00 RELEASE 2:30 VOLUME 2:00 Bright: On As I let a chord ring out, it is clearly suppressed at the beginning, but it gets more and more "released and increased". There is an oscillation in there and at the end...

Thanks a lot. Yes, I meant RATIO. My bad. Too many recent builds and this my first compressor. I tried to ask early on if low THRESHOLD and high RATIO were inherent (?) to cause distortion. Now I know. Thanks. Humbuckers pronounce the "problem" more, but with RATIO at 03:00 and THRESHOLD at...

Thanks a lot! New hope... I might have placed the green in the wrong spot (pin 1), it is more like pin 3, the plus going in to IC1. At 1 and 2 pins it is noisy. I will inspect as you suggested anyway. Is there a way to verify that ATTACK and RELEASE does something? If they do it is very subtle.

OK, I went through and re-heated and re-soldered as needed the sockets, including the 16-pin one for good measure. Q1 was a bit wobbly in its socket, so I soldered it to another socket and stacked them. I reheated and reflowed the Release and Attack. It still has that scraping noise. Right now...

Thanks One problem is that the audio is at one level coming in and until pin3 on IC1.1 TCL072 then on pin1 it gets amplified (of course) making it hard to distinguish between any scraping vs just very loud, it is not until Level knob I can get back to some more unity level, and then for sure the...

Thanks @JamieJ . It traces to the out. I did not unbox it just yet, so I couldn't verify each side of C4, but since the signal passes through all the way to the output, I take that as the red path checks out. I have been swapping the two TL072CPs with each other and at some point it felt as if...

Not sure if this means anything, but I probed to the green point which still sounds "clean". I assume this makes sense since this seams to be the clean signal route. The red junction is where it sounds sh*t. But this does not have to mean that this is the problem. There is signal, but much more...

Thanks, Well honestly I am just happy someone reacted to my post. Feels better :) I got it from Das Musikding, but not sure where they source from. I tried with (Trio +) looper and audio probe, but it gets very high pitchy noisy, so I went for guitar instead. Downside is that your hands are no...

Yes, I agree. As if something was loose, not any "normal distortion". It is most prominent with high Rate and low Threshold. The others don't affect it as far as I can make out.

Since pictures are always wanted, although I doubt it matter at this point for either of my questions above.

If and once you manage to find the fault and fix it, there is often a moment of elation, euphoria, ... . So I don't like troubleshooting either, but I like to tie it together with a "joyful" ending to make it feel better. And as you pick up new tricks, your confidence ought to grow a little...

Soundclip example (my first, hope it worked) And knob setting picture