This game for 4 competitors was found in a Popular Electronics from the 80's. The circuit has CMOS technology and can be powered by voltages from 6 to 12 V.
This circuit is from a Radio Electronics magazine from August 1990. The indicator module is of a...
This is one of the first transistorized receivers (2N107) published in the Radio Electronics...
This fader or fader was found in a 90s Popular Electronics. The circuit uses transistors that are...