This circuit with the ULN3784B appeared in the October 1984 issue of Radio Electronics magazine. It can typically be powered from 9 to 24 V.
This circuit is from an American documentation from 1975. The single junction transistors can be...
This circuit was found in Raytheon's 1967 documentation. The circuit uses an operating of the era,...
This circuit provides a power of 12 W with 24 V of supply, consuming a current of 820 mA and...