We found this multiple thermostat circuit in July 1980 Radio Electronics magazine. It uses opto-triacs for power control and operates on a 117 VAC mains.
This configuration, which appears in other projects in this section and on the website, shows how...
This circuit is from the 1992 Radio Electronics Handbook. The components used are from the period,...
This circuit was obtained from American documentation from the 1990s. The transformer can be a car...