R1 may be 10k and R2 100k. The transistor can be the BC548 and instead of the small lamp we can use a series LED with a 1k resistor. D1 is germanium and C1 is 10 nF. C2 can be 47 nF.
January 2017 - Mouser Electronics already has to supply the INA240 evaluation modules for current...
We have several circuits like this in this section and on the website. This is from a magazine 73...
This power supply is protected from shorts in the load. The BD135 must be mounted on a heatsink...