Found in an American publication from the 90s, this circuit allows the supply of 3, 6 and 9 V devices with currents up to 1.5 A in the car.
This circuit provides an accurate measure of the internal resistance of an analog instrument. Just...
This project came out in an article of mine (Newton C. Braga) in the Popular Electronics magazine of...
To obtain an AND gate we have the configuration shown in the figure. With the values indicated for the...