Guitar Piezo

What is the difference between the piezo's? (electric, intercom, pulse, etc)?
I have a project for science fair where I'm going to pick up a guitar with a piezo electric buzzer but I went to Radio Shack site and there are many different piezoelectric. Is there a difference between them? Can I use any of them to make a guitar pickup? Thank you.
The piezoelectric effect Where is the pressure or vibrations in crystals or materials ceramic to generate electricity or vice versa, when the electric charge induces changes in the way or alternating current generates vibrations. So yes, the effect is reversible, and may use a piezoelectric speaker back like a guitar pickup. If appropriate depends on physical restraint.
Simon McBride plays PRS Hollow Body Piezo at GJ’s Guitar Emporium
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4-Band EQ Pre-Amp Piezo plus Pickup for Acoustic Guitar $0.95 |
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Shadow Acoustic Guitar AC Jack PreAmp Piezo active $24.99 |
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Acoustic Guitar EQ 7545R Piezo Pickup Preamp System $0.99 |
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2002 IBANEZ RG2120X RG 2120X 2120 X PIEZO BLUE GUITAR $1,250.00 |
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25pc 20mm piezo disks – great for cigar box guitars! $12.99 |
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Acoustic Guitar Piezo Pickup & Passive Preamp System $0.99 |
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Acoustic Guitar Piezo Pickup & Passive Preamp System $0.99 |
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4-Band EQ Pre-Amp Piezo plus Pickup for Acoustic Guitar $0.95 |
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Acoustic Guitar Piezo Pickup & Passive Preamp System $0.99 |
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Acoustic Guitar Piezo Pickup & Passive Preamp System $0.99 |

