This circuit is from an American publication of the 80's. It makes use of components of the time. However, the circuit is the basis for a modern shield application since the input is TTL.
This circuit uses incandescent lamps for the 110V or 220V grid. We found this configuration in a 1989...
January 2017 - Omron G7L-x relays for PCB mounting can now be purchased from Mouser Electronics. These...
By adding a transistor to the output and some polarization features we can obtain a higher output...