This was written almost 50 years ago, and gives some food for thought even
today:
"Homebrew Kilowatt
Dear 73,
Did you ever write an article that you later wished
you had not written? I have written several. The latest
is the 6KG6 KW amplifier appearing in January 73.
The third paragraph states, "It is assumed that the
ham who starts out to home brew a kilowatt is not
embarking on his first construction project".
You wouldn't believe the letters I have received from
neophyte hams, who, by their very questions, reveal
that they have never built anything at all. So suddenly
they decide to build a KW with 2000 volts on it.
I sincerely hope nobody gets electrocuted as a result
of my article.
I belive you need a good article entitled, "If you
want to get your feet wet, start at the shallow end of
the pool". Then go on to describe a good linear (or
other amplifier) that has a supply of less than 500
volts. Go through it piece by piece and explain what
the parts are for and why they have to be within
a certain size range. The stock question about the
above amplifier was "What's the size of the capacitor
between the plate and the pi-network? This is noted
in at least ten places in every handbook in the land.
A ham who doesn't comprehend even vaguely, the pur-
pose and limitations of a dc blocking and rf by-pass
capacitor, has no business building anything as lethal
as a KW final,
R. D Baird W7CSD
Klamath Falls, Oregon"
73/
Karl-Arne
SM0AOM
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