Found in an Elektor from the 90s, this circuit simulates a rotary switch that provides a BCD output from a 1 pole x 10 common position switch. The circuit can be powered by voltages from 3 to 15 V.
daptation of a common multimeter for the measurement of high voltages with high input resistance,...
The sensor for this alarm is a thin wire that, when interrupted, triggers a buzzer and turns on a...
This 3 A adjustable source uses the LM350 integrated circuit, which must have a good heat...