Recommended · for beginners
Amplitude Modulation tutorial and AM radio transmitter circuit
Why people recommend it
Explains amplitude modulation and builds a simple op-amp AM transmitter; the circuit is widely copied, and people often ask how its mixer stage really works.
Watch for: the high-pass filter at 5:48 confuses some viewers
In their words
I found a very basic AM transmitter circuit on the youtube video here.
superkittens on electronics.stackexchange.com, Jun 2013. CC BY-SA.
I have found this circuit diagram for amplitude modulation here.
Israr on electronics.stackexchange.com, Jun 2021. CC BY-SA.
I stumbled upon this nice video and thought I'd try to reproduce the experiment.
mickkk on electronics.stackexchange.com, Aug 2016. CC BY-SA.
