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 field effect transistor amplifier circuit in common gate or common port configuration is from an old...
This circuit was obtained in an old American documentation. The integrated circuit used is...
This zero crossing detector is of the 1993 Motorola Linear Interface ICs. The source is...