On Tue, 05 Apr 2005 02:59:50 GMT, "KA6PNL"
wrote:

Hi I have a friend that son wants to build a crystal radio. I seam to
remember that we grew our own crystal back in the early 60 any help?? Also
where can I find a 1n34 quick have 2 weeks for his science fair.


ka6pnl

Ed
NAS Lemoore

I don't know about growing a crystal, but the most popular choice is
Galena. Iron pyrite and some other minerals also will work. Heck, an
old Gillete "Blue Blade" or other thin double edged blade will work to
some extent, ala the WWI foxhole radios.

One of the nurseries here in Atlanta sells minerals for decorative
purposes. You can order a Galena crystal already mounted, as well.

Acouple of web sites to check out are
The Crystal Set Society http://www.midnightscience.com/

Crystal Radio Resources http://www.thebest.net/wuggy/

Ted KX4OM