The circuit is from the MC1539 manual, an operational one close to the 741. The transistor admits equivalent and must be mounted in a good heat sink.
This circuit detects light variations using two LDRs as sensors. Operational amplifiers and...
The integrated circuit used in this application is not currently common. The circuit is from an...
We found this motor control circuit that uses only transistors in a 2003 documentation. The H...