We found this circuit in the November 1985 issue of Radio Electronics magazine. It uses TTL technology and has binary inputs. The circuit must be powered by 5 V.
This circuit is from Radio Electronics from March 1977. The integrated circuit is from that time...
This 1.2 to 32 V x 3 A regulator was found in an 80's EDN. The power components must be equipped...
This power control from Motorola's 1971 SCR Power Control Fudamentals can control full wave loads...