operational amplifier - Can I use piezo plate instead of electret mic? - Electrical Engineering Stack Exchange
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A 5-channel mixer / preamplifier for piezo disks by Godfried-Willem Raes
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operational amplifier - What is a good circuit for recording a piezo contact microphone or an electric guitar pickup? - Electrical Engineering Stack Exchange
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Piezo Preamps
operational amplifier - Protect Op Amp input from piezo sensor overvoltage - Electrical Engineering Stack Exchange