Piezo contact microphone hi-Z amplifier – low noise version – Richard Mudhar
Guitar FX Layouts: Acoustic Piezo Preamp
Make this DIY Contact MIC Circuit | Homemade Circuit Projects
Collin's Lab: DIY Contact Mic - Make:
Make this DIY Contact MIC Circuit | Homemade Circuit Projects
How to Build a Microphone Amplifier Circuit
contact microphone preamp buffer - MOD WIGGLER
Piezo Preamps
DIY piezo preamp with hi-pass filter – breaks.berlin
Simple Surface Microphone
Piezo Preamps
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
Increase piezoelectric transducer acoustic output with a simple circuit - EDN
Microphones
Piezo Preamps
Designing a Tin Can Piezo Microphone – DIY Recording Equipment
Simple Contact Microphone
Simple Microphone to Speaker Amplifier Circuit Diagram
Piezo Preamp Experiment - Cigar Box Nation
Building your own Piezo-Preamp – The Center for Haptic Audio Interaction Research
Piezo contact microphone hi-Z amplifier using a FET – Richard Mudhar
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
