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.
With the presented circuit, random patterns are generated for the flashing of 8 LEDs, leading to a...
We found this circuit in a documentation from the 70s. The circuit uses amplifiers from the time,...
This circuit was found in a 90's espionage publication and serves for analog lines. The circuit is...