This circuit is from a 1980s Signetics documentation. The circuit separates the modulation signal from a carrier. The used components are not common today.
This calibrated circuit was found in documentation from the 1980s. It makes use of an integrated circuit...
This triac synchronized circuit was found in the July 1995 issue of Electronics Now magazine. The...
This high input impedance circuit makes use of two operational ones that are still common. The...