Davetbass Posted February 8, 2008 Share Posted February 8, 2008 Just finished doing up a bitsa jazz bass with active EMG`s and have a wierd problem with the tone control. The bass arrived with no tone cap so after a quick visit to the EMG site, I bought a 0.1 tone cap and soldered it in. Everything is working fine untill I turn the pot fully clockwise, then it cuts the signal. Help! Dave Quote Link to comment Share on other sites More sharing options...
BOD2 Posted February 8, 2008 Share Posted February 8, 2008 I don't suppose it's a "no load" pot with a break at the end of the carbon resistance track is it ? Failing that I'd give it a squirt of contact cleaner to make sure there's no dirt causing problems. Quote Link to comment Share on other sites More sharing options...
Davetbass Posted February 8, 2008 Author Share Posted February 8, 2008 (edited) [quote name='BOD2' post='136896' date='Feb 8 2008, 10:53 PM']I don't suppose it's a "no load" pot with a break at the end of the carbon resistance track is it ? Failing that I'd give it a squirt of contact cleaner to make sure there's no dirt causing problems.[/quote] It might be mate....to be honest I dont have a bloody clue! What`s the function of a no load pot? It`s the very last turn of the knob that causes the cut out. Does that sound like it? If it is that, would changing it out sort the prob? Sorry.... I`m new at electrics Dave Edited February 8, 2008 by Davetbass Quote Link to comment Share on other sites More sharing options...
BOD2 Posted February 8, 2008 Share Posted February 8, 2008 A "no load" pot has got a gap in the carbon track at one end that effeictively takes the resistance of the pot out of the circuit when you reach that point. I can't think straight enough right now to figure out what would happen if it was wired up the wrong way ! It's a non-standard part, though, and a little unusual. More likely to be dirt inside the pot, provided you've checked that all the connections to the pot are sound. Quote Link to comment Share on other sites More sharing options...
Davetbass Posted February 9, 2008 Author Share Posted February 9, 2008 [quote name='BOD2' post='136913' date='Feb 8 2008, 11:46 PM']A "no load" pot has got a gap in the carbon track at one end that effeictively takes the resistance of the pot out of the circuit when you reach that point. I can't think straight enough right now to figure out what would happen if it was wired up the wrong way ! It's a non-standard part, though, and a little unusual. More likely to be dirt inside the pot, provided you've checked that all the connections to the pot are sound.[/quote] Sounds like a wrong pot, in the wrong place, at the wrong time!! Thanks mate!! Dave Quote Link to comment Share on other sites More sharing options...
Hamster Posted February 9, 2008 Share Posted February 9, 2008 The EMG's require 25k audio taper pots. If it's a 'bitsa' bass then you might have the usual 250k or 500k pots which wont work properly. Hamster Quote Link to comment Share on other sites More sharing options...
Davetbass Posted February 9, 2008 Author Share Posted February 9, 2008 [quote name='Hamster' post='136929' date='Feb 9 2008, 12:06 AM']The EMG's require 25k audio taper pots. If it's a 'bitsa' bass then you might have the usual 250k or 500k pots which wont work properly. Hamster[/quote] Thanks for all your help chaps!! Quote Link to comment Share on other sites More sharing options...
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