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Which are you referring to?
Wichita Sam said:Not sure, but stuffing the box with balled up newspaper probably kills any acoustic volume... It's clear why it works, it insulates the open back of the piezo from ambient sound waves, which when they gain amplitude, causes feedback.
But, when it is so easy to limit feedback in ways that don't kill acoustic volume of the instrument, why not do it a better way?
Travis "SlackJack" Woodall said:Not sure if anyone suggested this, but one of my friendly CBNation pals suggested to me that I use a balled up page out of a newspaper inside the box. The last CBG I finished, my 23rd total, played great and sounded great but had enough feedback to shoot me to the moon. I tried it, balled it up loosely to where it just makes enough contact with the lid to stay in place...I can crank up the volume and NO FEEDBACK. That, along with my usual encasing the piezo in walnut,is now my standard for all of my build that have a piezo pickup in them. Hope that helps. Good luck!!
I was told and it worked to sandwich them in wood so I put it between the neck and the box top. You have to use just the disc no plastic cover. Shielded wire helps to
i have been putting the piezo between two pieces of thin wood and that has been working good for me, the first build i just used the piezo without a volume control and it worked great no feedback but the second build i wired in a volume pot with the piezo and i get i buzzing sound if i don't have the volume turned up to 9 or 10 on the cbg ,does anyone know why this is happening?