Members JMS 2 Posted March 1, 2010 Members Share Posted March 1, 2010 I posted this on the DIY forum but I gather there's more traffic here Basically I'd like to add a volume control to an existing pedal. The whole post is here Thanks for any suggestion ! Link to comment Share on other sites More sharing options...
Members neoflox Posted March 1, 2010 Members Share Posted March 1, 2010 I am not an expert that much but wouldn't that work: take a pot then PCB OUT > lug 1, LUG 2 > Output (switch, output jack, wherever the pcb out would go), LUG 3 > Ground? Link to comment Share on other sites More sharing options...
Members hooya Posted March 1, 2010 Members Share Posted March 1, 2010 I am not an expert that much but wouldn't that work: take a pot then PCB OUT > lug 1, LUG 2 > Output (switch, output jack, wherever the pcb out would go), LUG 3 > Ground? This is true. Try a 10k log or 100k log for the value. Keep in mind this is only a passive trim setup. The volume knob setup this way will only be able to cut the volume, not boost, so unless the pedal is always too loud you will likely have it "turned up" all the way most of the time. Link to comment Share on other sites More sharing options...
Members neoflox Posted March 1, 2010 Members Share Posted March 1, 2010 This is true. Try a 10k log or 100k log for the value. Keep in mind this is only a passive trim setup. The volume knob setup this way will only be able to cut the volume, not boost, so unless the pedal is always too loud you will likely have it "turned up" all the way most of the time. Wait. I was right? That never happened before. Link to comment Share on other sites More sharing options...
Members youngpedals Posted March 1, 2010 Members Share Posted March 1, 2010 Almost, if you want the volume to increase as you turn the pot clockwise (the usual convention), you have to wire it as: lug 3 connects to PCB output, lug 2 is your new output to the switch, and lug 1 goes to ground. BTW, I'm counting lugs this way: Your popping problem when engaging the switch comes from DC offsets between the switch's terminals. I recommend the "input grounded" bypass wiring, you can find it here: http://www.generalguitargadgets.com/content/view/33/27/ Link to comment Share on other sites More sharing options...
Members hooya Posted March 1, 2010 Members Share Posted March 1, 2010 I count mine 1-3 left-right when I'm looking at the inside of the chasis. In my experience the numbering for the lugs isn't always consistent from schematic to schematic. Link to comment Share on other sites More sharing options...
Members JMS 2 Posted March 3, 2010 Author Members Share Posted March 3, 2010 Your popping problem when engaging the switch comes from DC offsets between the switch's terminals. I recommend the "input grounded" bypass wiring, you can find it here:http://www.generalguitargadgets.com/content/view/33/27/ That would be interesting, but the site seems down ? Link to comment Share on other sites More sharing options...
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