Found in an old Popular Electronics this circuit appears in other variations on this site and in this section. It uses a 7-segment common anode LED display as an indicator.
In the figure we have a configuration that allows to test NPN transistors and with the addition of a...
We found this circuit for 330 MHz using PIC in the magazine Electronics Now of December 1994. The...
We found this battery monitor in a 2005 Linear Technology application manual. The circuit uses...