Simple Microphone to Speaker Amplifier Circuit Diagram
Make this DIY Contact MIC Circuit | Homemade Circuit Projects
Guitar Contact Microphone Preamp : 7 Steps - Instructables
Microphones
Building your own Piezo-Preamp – The Center for Haptic Audio Interaction Research
audio - Electronic stethoscope / contact mic not quite working - Electrical Engineering Stack Exchange
Contact Mic - CircuitLab
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
Alex Rice Piezo Preamplifier – Zach Poff
Several Piezo contact mics with Arduino - Arduino Stack Exchange
Piezo Preamps
The Mint-box Piezo Buffer
Guitar Contact Microphone Preamp : 7 Steps - Instructables
Looking for piezo mic amplifier circuit - DIY STUFF - Look Mum No Computer Thingies
Collin's Lab: DIY Contact Mic - Make:
Piezo contact microphone hi-Z amplifier – low noise version – Richard Mudhar
Alex Rice Piezo Preamplifier – Zach Poff
A 5-channel mixer / preamplifier for piezo disks by Godfried-Willem Raes
building contact microphones - john grzinich
How to Build a DIY Contact MIC Circuit
