Danny Boy @dannyboy@qoto.org

@Electronics

I wanted to share a write up I did not to long ago explaining **circuit duals** with a specific focus on **magnetic circuits**. They behave the same as an electric circuit in the sense that anything you can do with an electric circuit there is an equivalent way to do it with a magnetic circuit. A magnetic circuit is a circuit that uses the magnetic fields propagating through "wires" rather than electric fields. It's a very cool idea and worth a read, though all the usual electric concepts are flipped, for example instead of talking about electromotive force (EMF/voltage) you would use magnetomotive force instead (MMF) as filling the same function as voltage in an electric circuit.

Let me know what you think, this tutorial was a week long effort to write.

https://jeffreyfreeman.me/an-indepth-look-at-duals-and-their-circuits/

#Electronics #RF #HamRadio #amateurradio #EE #Radio @General

The register

New lawsuit: Why do Android phones mysteriously exchange 260MB a month with Google via cellular data when they're not even in use?

https://www.theregister.com/2020/11/14/google_android_data_allowance/

#LoRa & LoRaWAN support in #ZephyrIoT

https://www.cnx-software.com/2020/11/15/lora-lorawan-support-in-zephyr-os/

I had forgotten about #somafm . I think I first found it back in high school (a charmed time for me). Looking at the site now, I think I even copied their CSS for my own silly #icecast music radio's tracklist back then.