Jeffrey Herman wrote:
On 1 Jan 2006 16:52:58 -0800, wrote in
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]
It's so easy to look up facts nowadays, I'm surprised that you were
unable to find this: "A 17-year-old named Haddaway had built his
entire station from absolute scratch, including the making of his
own vacuum tubes...." QST February 1921.
See? Fact, not an opinion attempted to be passed as a fact. You should
try that sometime. But then that would be impossible for you, for
you'd have to list references.
did you check the date?
are you aware of the current date?
can you in fact read what lens writes?
you tnagental responses are looking like stevie of number of years
back, things have not turned out wel for him
He never said someone could not make a vacum tube, indeed I suspect
that some my own gear could the job fair well with some adaption (a
vacuam system able to do metal dosipiting on telscope mirror should be
ale to manage it)
you over look the point, which sesm to be your specail forte? the tech
is anceint obselte while not usless, but certainly not of generla
interest to all hams
Jeff KH6O
--
Chief Petty Officer, U.S. Coast Guard
Mathematics Lecturer, University of Hawaii System
again where was the motivation petty officer and lectureur?