audio - Electronic stethoscope / contact mic not quite working - Electrical Engineering Stack Exchange
Binoy's Tech Blog: Using a piezo-microphone
Collin's Lab: DIY Contact Mic - Make:
Contact Mic - CircuitLab
Guitar Contact Microphone Preamp : 7 Steps - Instructables
Piezo Preamps
Looking for piezo mic amplifier circuit - DIY STUFF - Look Mum No Computer Thingies
Several Piezo contact mics with Arduino - Arduino Stack Exchange
Guitar FX Layouts: Acoustic Piezo Preamp
Guitar Contact Microphone Preamp : 7 Steps - Instructables
DIY piezo preamp with hi-pass filter – breaks.berlin
Make this DIY Contact MIC Circuit | Homemade Circuit Projects
Alex Rice Piezo Preamplifier – Zach Poff
Building your own Piezo-Preamp – The Center for Haptic Audio Interaction Research
Piezo Preamp Experiment - Cigar Box Nation
A 5-channel mixer / preamplifier for piezo disks by Godfried-Willem Raes
Piezo Preamps
Piezo contact microphone hi-Z amplifier – low noise version – Richard Mudhar
The Mint-box Piezo Buffer
Microphones
Simple Surface Microphone
How to Build a Microphone Amplifier Circuit
How to Build a DIY Contact MIC Circuit
Piezo contact microphone hi-Z amplifier using a FET – Richard Mudhar
