Hot Iron archive

Some may like the archive of W4NPN to "Hot Iron",  which many builders will find very useful. Hot Iron is an online magazine for constructors. 

See https://www.w4npn.net/hot-iron-directory/

Hot Iron 110

Peter Thornton G6NGR has just sent me the latest PDF copy of "Hot Iron".  One topic (amongst many good ones) is receivers on a chip. Things have moved on quite a lot since we got excited by the ZN414 in the 1970s! The one linked below is an example. There must be many more.

See https://www.silabs.com/audio-and-radio/multiband-radios .