This configuration with the LM111 was found in your factory manual. The circuit can be implemented with modern operational equivalents. The power supply must be symmetrical.
This circuit uses a 555 (according to the diagram) to generate 50 ms tone bursts at a frequency of 1.5...
August 2016 - It can be obtained from Mouser Electronics thenew broadband ADCs ADS127L01 from...
This is a dimmer version for incandescent lamps (do not use any other type) from an old...