This circuit is from 1995 documentation. Integrated circuits are used which can still be found with some ease. The 9 to 12 V power supply must be isolated. Never use power supply without transformer. Audio cables must be shielded.
This circuit is from 1995 documentation. Integrated circuits are used which can still be found with some ease. The 9 to 12 V power supply must be isolated. Never use power supply without transformer. Audio cables must be shielded.