This circuit is from a Motorola integrated circuit manual. The integrated used is no longer common in our market and the power transistor must be equipped with a heat sink.
When the sensor X1 is opened, the relay is energized. When waiting, the current drained is very...
Based on the LF256 operational amplifier, this circuit was found in the September 1989 issue of...
This circuit was found in a 1968’s Motorola documentation. The transistor is from that time. The...