Members bengerm77 Posted February 5, 2011 Members Share Posted February 5, 2011 I was reading over at TGP and some guy made a claim that cold solder joints are a source of hum in guitar circuits. I want to believe him because most of my guitars that I solder inside tend to be hummy (if you catch my drift). I looked it up online and there is nowhere else that claims anything like that. Is there any truth to this claim? I know it wouldn't hurt to clean up my soldering skills and reflow the solder on said joints, either. Link to comment Share on other sites More sharing options...
Members sccanj Posted February 5, 2011 Members Share Posted February 5, 2011 I dont think so, solder joints are a mechanical union, either you will get sound or not. But i'm no expert by any means. Link to comment Share on other sites More sharing options...
Members mrbrown49 Posted February 5, 2011 Members Share Posted February 5, 2011 I dont think so, solder joints are a mechanical union, either you will get sound or not. But i'm no expert by any means. It's not quite that simple. A bad joint could actually have a measurable resistance, still I don't know if that would cause hum or not. Perhaps if you had some bad ground connections it would. Link to comment Share on other sites More sharing options...
Members Argh! Zombies! Posted February 5, 2011 Members Share Posted February 5, 2011 I have a good record of introducing this to my guitars. Didn't think it was disputed. It happens less now that I'm better at making shiny solders, too. Link to comment Share on other sites More sharing options...
Members 's mel gibson Posted February 5, 2011 Members Share Posted February 5, 2011 To me, a cold solder joint is when there's a bubble or a crack inside that solder bubble. You can't help it some times when it looks good going on.Making the soldering tip and area as hot as you can make them with out burning up the surrounding area and usingthe least amount of solder. Just enough to get the job done.And not have a BB sized bubble of solder on the connection.It ought to look like a Hershey's Kiss. Link to comment Share on other sites More sharing options...
Members scuzzo Posted February 5, 2011 Members Share Posted February 5, 2011 better to just re-pool the solder and get it nice and shiny.. thats what i was taught.. dull = cold.. cold = bad Link to comment Share on other sites More sharing options...
Members Belva Posted February 5, 2011 Members Share Posted February 5, 2011 If you have a cold solder joint at your bridge ground, it could introduce hum. Ot if you're introducing ground loops. I'd be willing to bet these loops are what's causing the hums in your case.. Link to comment Share on other sites More sharing options...
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