mackeSID Posted January 31, 2015 Report Share Posted January 31, 2015 (edited) Hello! I attempted to make a feedback loop plug for my Sammich, where the output is split between a female jack and a male TRS connector. The image corresponds to the wiring, where the square oscillator (output of Sammich) is wired in parallel to the female output connector and pin 3 of a potentiometer. Pin 1 of the pot is set to ground and the washer pin is wired to the male TRS connector that goes to the Input of the Sammich. The wiring shows a mono connection but I've made it with a stereo pot so leftOut->leftIn and rightOut->rightIn and the 10k resistor just symbolises the input of the Sammich (no 10k on actual wiring, only for simulation purposes). However, I cannot hear any difference with the pot turned each way, not even when activating the filter in on the patch loaded. What am I doing wrong? Cheers /Macke Edited January 31, 2015 by mackeSID Quote Link to comment Share on other sites More sharing options...
eptheca Posted January 31, 2015 Report Share Posted January 31, 2015 I am not quite sure what you have done, I don't get the illustration, but here is the info http://www.bigmech.com/misc/c64mods/feedbackloop.html like here, I use a 500K, Quote Link to comment Share on other sites More sharing options...
mackeSID Posted January 31, 2015 Author Report Share Posted January 31, 2015 Yeah, i've seen it. I don't understand why he's chosen to wire pin 2 & 3 together like that. I've used a 200k pot, doesn't seem like the value of the pot should matter very much since it's just voltage division. What is it that you don't understand? Quote Link to comment Share on other sites More sharing options...
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