joegarcia Posted October 25, 2007 Share Posted October 25, 2007 Hi, I have built a small bypass looper for an fx unit that isn't designed to work with guitar/bass. The unit has a massive volume boost so I wired in a potentiometer on the return path in the loop. However, the pot I used doesn't make it quiet enough. I'd like it to be able to go from nothing to lots if thats possible. The one I tried was a 470k one. Would maybe a much higher one do? Like 1000 or something? Thanks, Joe Quote Link to comment Share on other sites More sharing options...
Alien Posted October 25, 2007 Share Posted October 25, 2007 Joe, have you grounded the unused end of the pot, or are you just sending the signal through two terminals? If you feed signal into one end of the track and ground the other, then the wiper will pick up a voltage between full signal level (flat out) and ground (no sound) or anything in between. If you just use one end of the track and the wiper then all you're doing is adding a bit of extra resistance to the output (effectively the input of the following effect/amp stage etc.) which won't do a lot. 470K should be plenty if you do it this way - you'll want a logarithmic (audio taper) pot though, otherwise all the volume change happens at one end of the rotation. Andy Quote Link to comment Share on other sites More sharing options...
joegarcia Posted October 26, 2007 Author Share Posted October 26, 2007 Awesome. No, I wasn't grounding the third taper. Will try that now. Thanks! Quote Link to comment Share on other sites More sharing options...
joegarcia Posted October 26, 2007 Author Share Posted October 26, 2007 Fantastic. Just did it and it works perfectly. Thankyou so much. Can't believe how easy that was. Quote Link to comment Share on other sites More sharing options...
Alien Posted October 26, 2007 Share Posted October 26, 2007 No worries amigo - glad to be of assistance Andy Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.