This circuit was proposed by an old American documentation for listening to SSB stations. The circuit makes use of a small old radio 455 kHz IF transformer.
This circuit is from an old 80's linear circuit manual. The configuration can be implemented with modern...
This detector with ultra-low deviation was found in an American documentation from the 90s....
This circuit was found in a Signetics documentation from the 1980s. Next to the figure are the...