This circuit is from a 1980s Signetics documentation. The circuit separates the modulation signal from a carrier. The used components are not common today.
September 2017 - Intersil's ISL850x Synchronized Buck Regulators can be ordered from Mouser...
This different power control circuit with SCR was obtained from a 1967 magazine. The SCR can be...
This low-frequency circuit for alternating signals is from an early American 1980s documentation. The...