Makeshift Square Loop Antenna for a Crystal Radio - Printable Version +- ARCHIVE: Australian Ham Radio Discussion Forum ( AHRDF ) (https://www.ahrdf.net/forum) +-- Forum: GENERAL (https://www.ahrdf.net/forum/forum-29.html) +--- Forum: Homebrew (https://www.ahrdf.net/forum/forum-38.html) +--- Thread: Makeshift Square Loop Antenna for a Crystal Radio (/thread-887.html)

Makeshift Square Loop Antenna for a Crystal Radio - VU2NAN - 08-11-2019 A heavy 2 m x 2 m floor-standing wooden showcase in the shack appeared to be suitable as a frame for a crystal radio loop antenna. As luck would have it, the lone 20 km distant 612 kHz, 200 kW AM broadcast station being in the end-on position by default, there would be no need to move the unit. The counter top would make it quite convenient to sit down and carry out the testing. The 5 turn loop was easily wound using about 42 m of ordinary hook-up wire. The shack is relatively quite small to get a photo of the actual unit. Here's a representation of the same. It works quite well with my series/parallel-tuned crystal radios. Further details at https://nandustips.blogspot.com/2019/10/another-loop-antenna-crystal-radio.html 73, Nandu.