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Permalink Reply by Jon Leslie/Runaway Veal Music on December 16, 2012 at 1:59pm

somehow the tin can guitar conducts some sort of grounding as opposed to the wooden cigar boxes? I've checked all three pickups several times. each piezo pickup works perfectly in the tin can cbg. Can anyone tell me or guide me in the right direction about why this is happening? if it was a cold solder the piezos would not work in the tin can perfectly i'd think. is there a wire i can add or use something other than my finger at the cord where it meets the 1/4 jack to make the hum stop. there's no hum at all when each piezo is in the tin can...thank you and sorry for so many replies here..im just stumped

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Permalink Reply by jim on December 16, 2012 at 3:19pm

Your cold solder connection is acting as an antenna, the tin is working as a shield. Work on your soldering.

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Permalink Reply by Jon Leslie/Runaway Veal Music on December 16, 2012 at 5:38pm

Yes, your are correct! The 1/4 jack soldering was a bit deceptive for me because of the prefabricated holes and easy wire wrapping ability on the actual jack .....seemingly easier but not. For anyone doing this for the first time...a very good tin of the wires while attaching the wires to the 1/4 inch jack paramount. .attention must be given to not only the piezo disc side connections as shown in videos. You might already know this as explained by others here. Thanks for bearing with my replies. Thanks to everyone.

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Permalink Reply by jim on December 16, 2012 at 7:17pm

Your still not getting it. Its your soldering job and your soldering only.

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Permalink Reply by Jon Leslie/Runaway Veal Music on December 16, 2012 at 7:57pm

Originally i thought I had tined the wires on the 1/4 jack side more thoughly when soldering but hadn't . I do think that was the problem. Seems way better now. Unfortunately the first few piezos I also applied hot glue in haste after soldering...not sure i can salvage.. Still learning. Sounds clean now. Do you tighten wires on the jack and also solder... both or just one? Thanks.

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Permalink Reply by Jon Leslie/Runaway Veal Music on December 16, 2012 at 7:59pm

Yes I agree it was the soldering..but do you wrap the wires also on the jack..through the holes?

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Permalink Reply by jim on December 16, 2012 at 8:29pm

Just tin the wires and hook them to stay put while soldering, its very important the wires do not move while cooling.

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Permalink Reply by Jon Leslie/Runaway Veal Music on December 16, 2012 at 8:39pm

Ok i will....and pretty sure that made all the difference this time. The glue threw me off and made it hard to troubleshoot after the fact. Won't be doing that again until I'm sure I got the soldering down. Thank you Jim ..very much appreciated!- Jon

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