Building (or Buying) Contact Mics – Zach Poff
LOM knowledge base: research:contact_mics
contact microphone preamp buffer - MOD WIGGLER
SWM-25
Guitar Contact Microphone Preamp : 7 Steps - Instructables
Piezo contact microphone hi-Z amplifier using a FET – Richard Mudhar
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Building (or Buying) Contact Mics – Zach Poff
Building your own Piezo-Preamp – The Center for Haptic Audio Interaction Research
Simple Contact Microphone
field recording - DIY contact microphone - Sound Design Stack Exchange
Metal Marshmallow II Piezo Disc Contact Mic and Preamp - Etsy
Building (or Buying) Contact Mics – Zach Poff
Piezo Preamps
Cortado MkII Balanced Buffered Contact Mic DIY Kit - Zeppelin Design Labs
Simple Contact Microphone
operational amplifier - What is a good circuit for recording a piezo contact microphone or an electric guitar pickup? - Electrical Engineering Stack Exchange
A 5-channel mixer / preamplifier for piezo disks by Godfried-Willem Raes
F999B Sensitive Listen Through Wall Contact & Probe Microphone Amplifier System | eBay
Alex Rice Piezo Preamplifier – Zach Poff
Guitar Contact Microphone Preamp : 7 Steps - Instructables
Piezo Preamps
Make this DIY Contact MIC Circuit | Homemade Circuit Projects
