We found this light relay circuit in year 2000 documentation. The relay is 6 V and the circuit includes a power supply. It can be used to control various devices from the incident light in the LDR.
This circuit is from the Audio Handbook of the National Semiconductor of 1977. Its purpose is to...
This circuit is both a signal injector and a signal follower. A key selects the operating mode. The...
The operating frequency of this circuit is 465 Hz and the input voltage is 12 VAC. The circuit is...