A 5-channel mixer / preamplifier for piezo disks by Godfried-Willem Raes
How to Build a DIY Contact MIC Circuit
The Piezoelectric/Crystal Microphone · Steele Vintage Broadcast Microphone Collection · UGA Special Collections Library Online Exhibitions
A 5-channel mixer / preamplifier for piezo disks by Godfried-Willem Raes
DIY piezo preamp with hi-pass filter – breaks.berlin
The Mint-box Piezo Buffer
Contact Mic - CircuitLab
Acoustic Guitar Pickup circuit & Wireless using TL071 | ElecCircuit.com
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
Simple Contact Microphone
Simple Microphone to Speaker Amplifier Circuit
audio - Electronic stethoscope / contact mic not quite working - Electrical Engineering Stack Exchange
Collin's Lab: DIY Contact Mic - Make:
Simple Contact Microphone
Make this DIY Contact MIC Circuit | Homemade Circuit Projects
Piezo Preamps
Piezo contact microphone hi-Z amplifier – low noise version – Richard Mudhar
Looking for piezo mic amplifier circuit - DIY STUFF - Look Mum No Computer Thingies
Guitar FX Layouts: Acoustic Piezo Preamp
Guitar Contact Microphone Preamp : 7 Steps - Instructables
Microphones
How to Build a Microphone Amplifier Circuit
building contact microphones - john grzinich
