This circuit is from an August 1984 Radio Electronics magazine. It monitors the state of a RAM backup battery. Resistor R1 determines the battery charge.
We found this circuit in an American documentation. The power of the load, in this case,...
This flip-flop circuit is from a September 1985 issue of Radio Electronics magazine. It generates...
The circuit is from an Electronics Hobbyst Handbook from the 90s, being valid for panels of the...