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.
This preamplifier is intended for the use with magnetic pick-ups. Power supply must have voltages...
This circuit converts inductances on two scales into voltages. The circuit was obtained from a...
The circuit shown was found in a 1994 Linear Applications Handbook by National Semiconductor. The...