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Permalink Reply by Sounds of the Nation on June 1, 2009 at 5:08am

did you take the piezo element out of the plastic housing?

do your amps work with a 'regular' electric guitar?

are you using a 1/4" jack on your cbg. make sure that is a mono jack and not a stereo one. if it is stereo you may be connected to the wrong lugs on the jack.

can you post some pics of the inside?

cheers
ets

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Permalink Reply by Big Steve on June 1, 2009 at 5:53am

Did you strum the strings? Just having a little fun ....

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Permalink Reply by Paul Doug on June 1, 2009 at 6:20am

"Strum the strings" darn forgot to add that in my original post! Yes. I looked at the cable I have, don't know how to tell if it is mono or stero. I ordered it as a guitar amp cable, looking at it it says on the cable "Super colour tv cable 5c-2v 75 ohm" could that be a problem? Don't have a "regular" guitar amp to try, can get a picture of the inside later today. Tried another cable, just says "guitar Cable" on it still no sound.

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Permalink Reply by Doc Oakroot on June 1, 2009 at 6:56am

How many ohms? A piezo is 1-2 MOhms. If you're getting less than that you have a short.

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Permalink Reply by Sounds of the Nation on June 1, 2009 at 1:13pm

pctures will help. as far as the stereo jack, i was refering to the jack you 'hopefully' have mounted and connected in your cbg. the guitar cable plugs into the amp and the cbg.

ets

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Permalink Reply by William H Bonney on June 1, 2009 at 1:41pm

I don't know. Did you try a mick in the amp or another instrument etc to see if any sound comes out?Did you see resistance on your meter?I am 62 years old and not sure what a piezo is. Does it require a Battery,a phantom power source or what?Chek restance at the jack end.Good luck!

Terry

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Permalink Reply by William H Bonney on June 1, 2009 at 1:45pm

Yea I'm thinking a short and a TV cable isn't going to work!It has to be a guitar cable shieided etc.

Terry

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Permalink Reply by Paul Doug on June 1, 2009 at 3:33pm

This is what it looks like inside. This cable says "Guitar Cable" on it.

Attachments:

• IMG_0776.JPG, 127 KB
• IMG_0778.JPG, 141 KB
• IMG_0779.JPG, 130 KB

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Permalink Reply by Jkevn on June 1, 2009 at 4:55pm

That looks to be a stereo type jack installed in the guitar, kinda hard to tell from the pics. The black wire appears to be connected correctly. My guess is the red wire is connected to the unused portion of the jack. If there is another lug to solder to, try switching the red to another post. The black will always be connected to the lug that contacts the center ring of the jack. The red should always go to the lug that contacts the tip of the cable plug when its plugged in.
On a stereo type jack, there is an extra contact point on the plug (not the tip) that is not used on a mono (guitar) type set up. A piezo will work backwards, so my bet is the red wire is connected to the "Phantom" lug. Good luck

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Permalink Reply by bairfoot cajun on June 1, 2009 at 8:37pm

yep it looks like a stereo jack inside the guitar body. so i have to say jkevn has a accurate call.also there is no guarantee that a brand new chord/cable of that type doesnt have a short in it. but i still think you soldered to the lug that would contact the stereo part of the cord/cable. you will get it figured out cause you are persistent.good luck paul.

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Permalink Reply by Sounds of the Nation on June 2, 2009 at 2:01am

i don't think it's a stereo jack but perhaps one that has a "switch lug'. a few photos w/o the cable plugged in. trace the parts of the jack to the solder tabs. you want to connect to the lug that goes to the threaded body of the jack, and the lug that goes to the 'springy' part of the jack that contacts the tip of the plug when you insert the cord.the 3rd lug (it seems like you have one) should go to a shorter straight piece that is in contact with the longer 'springy' part. when you plug the cable in the longer one pushes away to open the 'switch'
the tan coulored wafers serve to insulate the parts of the jack from each other.

hope this helps
ets

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Permalink Reply by paul @ huckleberry guitar on June 2, 2009 at 2:45am

Could be a bum piezo also and the crystal could have been damaged during soldering. Can't tell cuz there are no pics of the piezo. Generally i test the piezo and my connections up prior to soldering - run a cord from your amp to jack, twist one wire through the one connector on the jack and then hold the other wire to the other terminal, tap or scratch the piezo and you'll know if you have things right.

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