Macsot MR-700 High Quality wireless microphone

This is collected by the Macsot MR-700 wireless microphone system launch of the circuit for maintenance reference. High Quality Audio on receiver output.

Active components:
  • Microphone or Audio Preamplifier with IC MC4458
  • Dynamic Audio processed with one NE571 From Philips
  • Frequency Oscillator generated by one crystal 20.05 MHz and Varactor diode 2CB11A. No drift frequency is guaranted.
  • 9V DC power supply or battery. Source: High Quality wireless microphone