We found this circuit in a 1971 documentation. The circuit can be assembled with more modern transistors such as BC548 for Q1, BC558 for Q2 and BD135 for Q3.
This circuit is intended to measure the Idss current of a junction FET under test. The limiting...
We have already explored this configuration in several articles on this site. This was found in an...
With this circuit you can control up to 3 A of LEDs in different sequences, using a PWM...