I just finished building the classic compressor kit with the vintage upgrade. It's important that I first mention that I am somewhat unsure as to what compression pedals do exactly. Anyways, in my build, the level knob seems to work as it should and the bypass works, but the sustain knob doesn't seem to do all that much except make the signal louder without turning the level knob. However, when the sustain knob is engaged about 80% or more, I do notice that it seems to have more attack (or punch), but its only when I play spaced out notes. Overall, its a very subtle change, I feel like it should be more compressed or something. When Also there could be two potential problems with my build. The first is that I installed both IC sockets because I did not see until later that only one could be used (so I only have the vintage IC installed, but there's an empty socket still soldered in place for the other IC). The other potential problem is a solder pad that is slightly damaged. I originally thought the pad had fully fallen off the board, but it seems that only a bit of it has come off. It happened while my solder was not melting and I guess the pad got too hot or something and lifted off slightly. I will add a picture of the solder pad if anyone is interested/if someone thinks there is an actual problem with the pedal. Here's a link for a small demo of the pedal being used, I made comments that detail what wiper position each pot was at during each riff. Let me know if it sounds like it should, I would greatly appreciate anyone's help.
Compressor Demo:
https://soundcloud.com/user-895252217/c ... hort-demo3