This circuit was found in the January 1980 issue of Radio Electronics magazine. It is a digital slot machine using common logic circuits. It can still be easily assembled today.
This circuit is from a 1975 publication. The components are from the time, and modern equivalents can be...
This battery-powered emergency light circuit was published in an April 1962 Radio Electronics...
This circuit was found in a 1970s documentation. The integrated circuit used is uncommon today....