This circuit was obtained from 1967 documentation. It uses a sensor to determine the trigger point. The components are of the time, difficulty to obtain these days.
This light-activated switch triggers a 6 V relay. The circuit can operate with 12 V and relays for...
Mouser Electronics is supplying the SMi (Silicon Microestructures) uncompensated low pressure...
This small two-transistor amplifier was found in the April 1994 issue of Electronics Now magazine. This...