SWM-25
field recording - DIY contact microphone - Sound Design Stack Exchange
Piezo contact microphone hi-Z amplifier using a FET – Richard Mudhar
Building your own Piezo-Preamp – The Center for Haptic Audio Interaction Research
Custom Contact Mic Preamps - Yann Seznec
Guitar Contact Microphone Preamp : 7 Steps - Instructables
Building (or Buying) Contact Mics – Zach Poff
Make this DIY Contact MIC Circuit | Homemade Circuit Projects
Piezo contact microphone hi-Z amplifier – low noise version – Richard Mudhar
Building your own Piezo-Preamp – The Center for Haptic Audio Interaction Research
LOM knowledge base: research:contact_mics
Amazon.com: Metal Marshmallow Piezo Contact Mic (White +14dB) : Musical Instruments
Alex Rice Piezo Preamplifier – Zach Poff
Cortado MkII Balanced Buffered Contact Mic DIY Kit - Zeppelin Design Labs
Guitar Contact Microphone Preamp : 7 Steps - Instructables
Building (or Buying) Contact Mics – Zach Poff
Metal Marshmallow II Piezo Disc Contact Mic and Preamp - Etsy
Simple Contact Microphone
contact microphone preamp buffer - MOD WIGGLER
Building (or Buying) Contact Mics – Zach Poff
Piezo Preamps
Piezo Preamps
building contact microphones - john grzinich
Piezo Preamps
Simple Contact Microphone
