High Quality wireless microphone Macsot MR-700

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. More info ...