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.
Indicated on an 80's Radio Electronics, this circuit provides at its output a voltage that is the...
This circuit was found in a Philips documentation from 1970. The components are of the time,...
The integrated circuit used in this application is not currently common and the sensor can be any...