I have seen these very piezo elements that Owl and i have mentioned used for many purposes. The banjo pick up that Owl describes here was used by a fellow under the banjo bridge and afixed to the back of the top with a thin layer of GE Silicone II. Liam, the double sided tape does seem thick until you remember the DumDum like putty that Barfus Barry uses to hold there pick ups in place. I have a piezo pick up on my Dusty Strings Apprentice Hammered Dulcimer that is held in place by a piece of Army Ordinance Tape (one each, OD). Another daring soul glued a small piece of maple veneer to the banjo bridge and affixed the piezo element to the veneer.

Experimentation in this manner is dirt cheap. Try it. At least you will improve the electronic tuner access to the banjo.

Desert Pete is, in the end, very correct. Nothing sounds accoustic but accoustic.

Don