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Double Bass How to make a piezo pickup

I was able to succesfully make one of these pick-ups with the preamp built onto it. I currently have it mounted under the bridge wing and it gets a decent sound. I'd like to try it under the bridge foot though. The element is a lot smaller than the bridge so I was wondering if someone could post a picture of how they had their pick-up mounted under the foot.
 
Thank you so much, this thread is awesome! O_O
I'm trying to figure what piezo tab are used on the guide; browsing mouser, digikey and meas-specs website I've found drawings of Invalid Link Removed that are quite similar, except their size: no one seems to be 3/8"x1"... any advice?
Also... are they equally good at bass, medium and treble range?
Thank you again! ^__^
 
I've figured out how to make a piezo that sounds great, doesn't buzz or hum, and costs under $5.00. A few people were asking about them, so I've put some details here:
Link Removed


I know this post is really old, but reported that the link is now broken and would really like to see the design. Can you help them?
 
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These MSI piezo foils need a very high input impedance, up to 22 MegOhms, depending on size and foil thickness. The thinner and smaller the foil/element the higher the impedance needed.
If they are still in business, download their application info and technical data.
And the higher the input impedance, the better you need to shield them to keep electric noise off the signal.