https://makezine.com/article/technology/crystal-radios-round-up/
Crystal radios & round up - Make:
Apr 24, 2007 - Kevin Kelly has a great round up of crystal radio builds, free plans and kits (some I haven't seen either) - Link. Inspired related round up: HOW TO -
round upcrystalradiosmake
https://www.youtube.com/playlist?list=PL6W_lVCKeS04QSwkbsivwqsmZpk8OSM7y
Magnet-Field Antennas & Crystal-Radios - YouTube
Building AM-radios by yourself is a fascinating hobby. The most important part of any receiver is of course the antenna and for AM-reception you can make the...
magnet fieldantennascrystalradiosyoutube