Using SCRs, this circuit from a 1967 General Electric manual allows full wave load control with SCRs. SCRs can be modern types depending on the load.
This circuit was found in a 1980s Intersil documentation. The integrated circuit used is not...
Although it is a common configuration today, these circuits were taken from an old publication. The...
This circuit, from an old publication, can also use modern transistors. Note that the unit is...