This circuit is from old documentation, using a component that cannot be found easily today. The indicator is a galvanometer, and the input voltage is in the order of 1 V.
This circuit was found in Philips documentation from 1967. The components are of the time, being...
This simple NPN and PNP transistor tester configuration can use the low current range of a common...
Designed for battery-powered applications with output voltages from 0.8 V to 1.2 V the regulator shown is...