From: Frank Gilliland on Sun, Jan 1 2006 5:27 pm

On 1 Jan 2006 16:52:58 -0800, wrote in


snip
Now, if you want to "build from scratch" totally, you
will have to learn to SUCK all the air out of the tubes
you build for yourself (honoring the "tradition").
That's rather difficult (truly, vacuum sucks)...but
much, much easier than first creating ultra-pure
silicon and then doping the microscopic areas on it to
become the solid-state device you need. [sorry you
can't build "spark" transmitters...those being forbidden
in these modern times unlike a hundred years ago]

Check this out:

http://home.earthlink.net/~lenyr/index.html

Heh heh...I saw that website about when it was begun...that
guy has been having fun with all sorts of projects in true
do-it-yourself spirit! :-)

The section on Tesla coils and stuff akin to that is not a
"clean" source of fun. Those things and their discharges
can do quite a bit of broadband RF pollution.