Friday, January 11, 2013
This one is a simple crystal receiver with one stage of AF amplification. It covers the AM broadcast band, the HF bands, and (apparently) VHF using a switch and three different coil/capacitor combinations. You could make it a lot simpler by just building it for one band. Looks to me like a nice rig for an Altoid tin.
Our book: "SolderSmoke -- Global Adventures in Wireless Electronics" http://soldersmoke.com/book.htm Our coffee mugs, T-Shirts, bumper stickers: http://www.cafepress.com/SolderSmoke Our Book Store: http://astore.amazon.com/contracross-20