I have looked all over this site and can't find an answer.... I bought a bunch of pre-amps with a rod piezo and started to convert them to disk piezos because I use a bolt for my bridges. I thought this was dumb since they have a rod piezo attached. Can I treat the rod piezo like the disks and hot glue them to the inside of the box cover or neck.
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it worked post cut, but then shorted out when I had it mounted... Figured next time I just cover up the ends with hot glue
piezo crystals create a charge difference between the top surface and the bottom surface. rod piezos have a brass bar at the bottom to collect the bottom charge and a thin copper ribbon across the top of the 6 "bumps" to collect the top charge for the other wire.
If that thin copper ribbon across the tops of the crystals touches the brass bass, you get a short.
trim off as much of the 'space between bumps' as you can, so that the ribbon across the tops isn't long enough to touch the bottom, and it should be back in business.
I have had some luck with this set up. It's easier than routing a channel in the bridge.
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