Using a pair of period A/D converters, this 3-digit circuit was found in the 1992 Radio Electronics Experimenter magazine. The sensor is a thermistor.
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,...