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1/2 Solid State Better
From: Scott Stephens[SMTP:stephens-at-enteract-dot-com]
Sent: Tuesday, November 25, 1997 9:02 AM
To: Tesla List
Subject: 1/2 Solid State Better
I've become quite bummed after reviewing the facts of ferrites and FET's,
and how cheap, tame, dull and deadly the low (frequency) life is below 100KHz.
My Digi-key catalog shows 50-70A Alternistors and SCR's for $5-$10 ea.
Those little beasts in a bridge driver can pound 10KW through a few pounds
of ferrite! In the same space as 1 neon transformer too!
Carefull insulation and oil might make >20KV output possible? Without a
zillion turns?
Spark sensing with solid state switching can inhibit core switching, quickly
quenching the gap.
After considering a switching supply to turn 120vac into bout 100KHz for the
2ndary, 1) to a link and 2) through ferrite step-up transformer and
end-feeder and 3)Slugged TC
Maybe 1/2 solid state with a spark gap is 1/2 the size a conventional TC, 2x
the size (due to the greasy capacitor) of a full solid state TC, but by far,
gives the most bang for the buck?!