We found this circuit in the May 1996 Electronics Now magazine. The relay must have a voltage according to the circuit power supply and a trigger current of no more than 50 mA.
This is a circuit suggested by Linear Technology in a 1980s documentation. The integrated circuit is from...
This circuit is from a 1967 RCA documentation. Components can be replaced with modern equivalents. The...
June 2017 - Mouser Electronics already has the new Vishay DG series analog switches in stock. The...