Piezo Preamps
Alex Rice Piezo Preamplifier – Zach Poff
Contact Mic - CircuitLab
Simple Contact Microphone
Building your own Piezo-Preamp – The Center for Haptic Audio Interaction Research
How to Build a DIY Contact MIC Circuit
Collin's Lab: DIY Contact Mic - Make:
Alex Rice Piezo Preamplifier – Zach Poff
Designing a Tin Can Piezo Microphone – DIY Recording Equipment
Simple Contact Microphone
Binoy's Tech Blog: Using a piezo-microphone
building contact microphones - john grzinich
contact microphone preamp buffer - MOD WIGGLER
Microphones
audio - Electronic stethoscope / contact mic not quite working - Electrical Engineering Stack Exchange
DIY piezo preamp with hi-pass filter – breaks.berlin
Simple Surface Microphone
Several Piezo contact mics with Arduino - Arduino Stack Exchange
operational amplifier - What is a good circuit for recording a piezo contact microphone or an electric guitar pickup? - Electrical Engineering Stack Exchange
Guitar Contact Microphone Preamp : 7 Steps - Instructables
A 5-channel mixer / preamplifier for piezo disks by Godfried-Willem Raes
Make this DIY Contact MIC Circuit | Homemade Circuit Projects
Piezo contact microphone hi-Z amplifier – low noise version – Richard Mudhar
