This car battery monitor was featured in the January 1988 issue of Radio Electronics magazine. The circuit uses common transistors and has 3 levels of indication made with common LEDs.
We found this circuit in the February 1983 issue of Radio Electronics magazine. The 4-digit...
We found this circuit in an old American documentation. It is an electronic rheostat with a...
With this circuit it is possible to trace the characteristic curve of a component using an...