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Permalink Reply by Dan Sleep on October 30, 2011 at 9:03am

I know you said you checked the wiring, but a hum is almost always a grounding issue. Piezos don't usually care which wire is the ground. Are you sure you have the proper lug on the jack?

 

Can you post a picture of the wiring so we can have a look?

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Permalink Reply by Randy Howerter on October 31, 2011 at 11:13pm

i am trying to post a pic. but having some problems. however the rod pickup has only one wire and a braided cover alsoit came with aplug attached , i cliped the plug and solderd the braided side to the inner small pole and the wire to the other. I stoped at the store where i bought the amp with ny cbg they to try adding a ground from the pizo to the bridge (bolt) or the tail piece witch is a metal hinge , or possibly a (ground lift) what do you think??? thanks Randy

Dan Sleep said:

I know you said you checked the wiring, but a hum is almost always a grounding issue. Piezos don't usually care which wire is the ground. Are you sure you have the proper lug on the jack?

 

Can you post a picture of the wiring so we can have a look?

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Permalink Reply by Dan Sleep on November 1, 2011 at 1:46am

You may also find help in the Electronics group here. I don't think grounding the bridge will help.

 

http://www.cigarboxnation.com/group/cbgwiringelectronics

 

 

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Permalink Reply by Randy S. Bretz on November 1, 2011 at 3:22am

On the rod piezo there is no need to ground it...i use the rods alot in my custom bridges. When you cut the 1/8" plug off the braided steel is your ground wire...i go down about 1" and fish the hot wire out of the braided part. Twist the braided wire and lay some solder on it, clean the hot wire and lay some solder on that too....now their ready to connect to a standard 1/4" input jack. Also you can cut the length of the rod shorter if you need too...tip - when you can the rod [ i use a pair of sidecutters ] take a needlenose pliers and re-square the end. Inside the rod there is a tiny brass strip on the top and on the bottom...you don`t want them touching each other or the rod will not work.

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