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Architolk projects
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      Mikrophonie resources

      Power supply

      • USB to 12V project
      • PowerBRICKS USB to dual 12V
      • Instructables - dual power supply circuit
      • Power supplies intro
      • Mini PSU project
      • Circuits DIY - dual power supply circuit
      • Conrad 15V AC travos

      Mikrophonie

      • Mkrophonie circuit diagram (pdf)
      • Ears circuit diagram (pdf)
      • Piezo contact mics pre amp circuits
      • The first rule of CONTACT MIC club

      Pre amps with OpAmps

      • Designing with OpAmps
      • Piezo Pickup Amplifiers
      • High Quality Audio Preamp
      • OpAmp shootout
      • OpAmp info
      • Notes on audio OpAmps
      • Instructables OPA Alice (1)
      • Instructables OPA Alice (2)
      • Alex Rice Piezo preamplifier
      • Discussions about piezo pre amp building

      Charge amplifiers

      • Understanding and implementing charge amplifiers for piezo-electric sensors
      • Arx Piezo Preamp
      • TI Application Report Signal Conditioning Piezoelectric Sensors, both voltage amp and charge amp
      • GitHub
      • Feed
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