The integrated circuit used in this regulator is not common today. The circuit is from a technical documentation from the 80's and is only used as a reference for eventual repair.
This power control from Motorola's 1971 SCR Power Control Fudamentals can control full wave loads...
This circuit is from Popular Electronics from October 1981. The diode can also be 1N4004 and the...
This circuit, which was common at the time, was found in the February 1973 issue of Radio...