This circuit for cars of the time was found in a Popular Electronics magazine from the 90s. The circuit is based on CMOS logic that is common even today.
The Micro-Lock line of Molex connectors can be obtained from Mouser Electronics. These connectors...
The signal from this circuit found in a 1968 Electronics World is sinusoidal and depends on the...
Advertised as the world's simplest circuit for a Z80, this one is from Radio Electronics magazine,...