This circuit is from a 1980's documentation for telecommunications. The circuit is used in SSB and the diodes must be suitable types for the application. The audio input is low impedance.
This circuit was obtained from an Electronics World magazine from 1992. The circuit provides an...
This circuit is from 1989 documentation. It uses the TDA2002 as a modulator and the unusual power...
This circuit is from the 1990 Motorola Linear Databook. The integrated circuit used is the LF355,...