Recommended · for some experience
The Superheterodyne Radio: No really, that's its name
Why people recommend it
An explanation of heterodyning and intermediate frequencies in radio receivers, recommended as a clear introduction, with an audible demonstration of beat frequencies.
Watch for: The beat demo is ordinary acoustic beats, not binaural beats
In their words
For example, this mistake occurred in the video The Superheterodyne Radio by Technology Connections, which failed to explain source of non-linearity, the human ear acts like the the diode detector in a radio.
比尔盖子 on electronics.stackexchange.com, Apr 2024. CC BY-SA.
