Lefty Posted February 9, 2008 Report Share Posted February 9, 2008 (edited) Well last spring I built a guitar. Everything's pretty cool except the humbucker screeches when the amp is turned loud enough for band practice. The pickup is close to the bridge. The guy at the shop I bought it from figured it was jap-made in the 80's. I don't know if it screeches because of its positioning, if it's just defective, or if it's the way I wired it. What do you guys think? If it's the position, I guess I'm screwed. If it's the wiring, guess I can fix that. If it's the pickup, I'll probably buy a new one. Edited February 9, 2008 by Lefty Quote Link to comment Share on other sites More sharing options...
Setain Posted February 9, 2008 Report Share Posted February 9, 2008 My guess would be that the pickup is microphonic. This means that the windings are loose. So, when your amp is up loud, the windings vibrate, causing feedback. Its a bit like holding a mic to close to the speaker. Check out http://www.guitarnuts.com/technical/electrical/index.php . It has information on potting your pickup, if you decide that's what you want to do. Quote Link to comment Share on other sites More sharing options...
killemall8 Posted February 10, 2008 Report Share Posted February 10, 2008 do you have a video on youtube of that guitar? i think i remember seeing a vid with that guitar. is it grounded to the bridge? are there any flouresent lights (spelling?) around you? those always make high output pickups go crazy at high volumes. Quote Link to comment Share on other sites More sharing options...
Lefty Posted February 10, 2008 Author Report Share Posted February 10, 2008 Well it sure sounds just like mic feedback. Yes, that was me on youtube. No, it's not grounded (as far as I know), and yes there are some fluorescent lights nearby. Guess I'll try playing it in a different room and see what happens. Thanks guys. Quote Link to comment Share on other sites More sharing options...
killemall8 Posted February 10, 2008 Report Share Posted February 10, 2008 well it not being grounded is probably the biggest problem. Quote Link to comment Share on other sites More sharing options...
bentwood999 Posted February 12, 2008 Report Share Posted February 12, 2008 see if it helps when taking foot off of kitty > sorry just a little fun hear thats all Quote Link to comment Share on other sites More sharing options...
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