We found this balanced modulator circuit for DSB and possibly SSB transmissions in US 1980s telecommunications documentation. The diodes can be replaced with equivalents.
This circuit is from a 1992 publication, but can be mounted very easily today. The circuit is...
Suggested by General Electric in a 1968 documentation this integrated amplifier uses a component of...
This configuration is from an old integrated circuit manual. The circuit can be applied to modern...