The circuit shown, with the printed circuit board, was found in an article in the June 1990 issue of Radio Electronics magazine. Integrated circuits must be equipped with heat sinks.
We found this circuit in a 1966 documentation. The circuit is intended for a door opening system by the...
This circuit is from a April 1991 Popular Electronics. The magazine no longer exists, but the...
This oscillator with operational and CMOS buffers generates complementary signals. The circuit is...