This photoelectric sensor that triggers a relay was found in an English book from 1989. The transistor is a general-purpose type, and the integrated circuit consists of an operational amplifier.
In the figure we show a monostable that uses two of the four ports available on 4001. The duration of...
August 2017 - The new IXYS solid state relay CPC2907B from IXYS is currently in stock at Mouser...
This circuit was found in a 1990 Electronics World magazine. The circuit can be mounted today by...