Simple Surface Microphone
Guitar Contact Microphone Preamp : 7 Steps - Instructables
Piezo Preamps
contact microphone preamp buffer - MOD WIGGLER
Designing a Tin Can Piezo Microphone – DIY Recording Equipment
Acoustic Guitar Pickup circuit & Wireless using TL071 | ElecCircuit.com
Building your own Piezo-Preamp – The Center for Haptic Audio Interaction Research
Simple Microphone to Speaker Amplifier Circuit
Alex Rice Piezo Preamplifier – Zach Poff
Looking for piezo mic amplifier circuit - DIY STUFF - Look Mum No Computer Thingies
A 5-channel mixer / preamplifier for piezo disks by Godfried-Willem Raes
Contact Mic - CircuitLab
building contact microphones - john grzinich
Piezo Preamps
Simple Contact Microphone
DIY piezo preamp with hi-pass filter – breaks.berlin
Guitar Contact Microphone Preamp : 7 Steps - Instructables
Guitar Contact Microphone Preamp : 7 Steps - Instructables
Make this DIY Contact MIC Circuit | Homemade Circuit Projects
Simple Contact Microphone
Simple Microphone to Speaker Amplifier Circuit Diagram
Piezo contact microphone hi-Z amplifier using a FET – Richard Mudhar
How to Build a DIY Contact MIC Circuit
Guitar FX Layouts: Acoustic Piezo Preamp
