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

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









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