Tape Head Pre-Amplifier

  • Rajkumar Sharma
  • 13749
  • medium
  • Tested


This project is a tape head Pre-Amplifier circuit.


The circuit is built around a popular Sanyo’s stereo head preamp IC LA3161. Low electrical signals from the playback heads are fed to pins 1 and 8 of IC1 via DC decoupling capacitors, respectively. Components between pins 2 and 3 and pins 6 and 7 provide adequate equalization to the signals for a normal tape playback.


  • Power supply: 9 ~ 12 VDC @ 20 mA
  • Output power: upto 200 mW
  • Input Resistance – 100 KΩ (Typ), Load Resistance – 10 KΩ (Typ)
  • Low noise, good ripple rejection owing to the on-chip voltage regulator
  • Berg pins for connecting power supply, input and output
  • Power-On LED indicator
  • Four mounting holes of 3.2 mm each
  • PCB dimensions 49 mm x 38 mm



Parts List




  • JRex

    sir ! i want to make a lapel-like project. could you recommend something ?

    3 years ago
  • good day, is there any circuit for tape head for erasing tape?

    8 months ago
    • admin

      We are sorry, we don’t have such circuit for erasing tape.

      7 months ago
  • Luciano

    In the project for the stereo tape head preamp I can’t find the PCB diagram!

    4 months ago
    • I’ve uploaded PCB in PDF format in downloads above. Thanks

      3 months ago

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