This circuit was found in the February 1970 issue of Radio Electronics magazine. The integrated circuit is a type of the time. It consists of a high-gain differential amplifier.
This simple 10-position roulette circuit with the 4017 found a 1987 documentation. The circuit can...
This small auxiliary amplifier was found in a Radio Electronics from May 1958. Power is supplied with...
According to the article in Radio Electronics from April 1986, it would be possible to detect...