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.