I get a flyer from the FAIR RADIO SALES Company in Lima,Ohio
and it is mostly full of old Army surplus radio stuff but the
latest ad sheet shows a pair of items that might be of interest
to crystal set builders or antique radio hobbyists. (1.) A kit
of parts to build a crystal set:10 sided loop antenna,germanium
detector diode,3 plate sliding capacitor,etc.: Selling for $27.95
and (2.)Crystal Receivers Book; 48 pages. Experimental crystal set info from 1911 and 1912, letters from builders and ideas on
how to build the things used in a crystal radio set.:$6.95 cool:
IF anyone is interested their website is :
www.fairradio.com