This sophisticated decade of benchtop resistors was found in the November 1989 issue of Radio Electronics magazine. The circuit is supposed to use precision resistors.
This circuit is from an Electronics World of 1968. The transistors are of the time and the power...
This circuit can be used in the car to convert the 12 V from the battery in 6 or 9 V up to 2 A....
This circuit, from the ON Semiconductor Thyristor Manual, controls both the speed and direction of...