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RE- KV's and multimeters
From: Robert Michaels[SMTP:robert.michaels-at-online.sme-dot-org]
Sent: Saturday, November 22, 1997 5:13 AM
To: tesla-at-pupman-dot-com
Subject: RE- KV's and multimeters
Have you been a bad little boy? Not playing the way
you were told? No wonder you are losing your toys --
that's what happens when you don't play nicely:
-- If you absolutely must use solid-state circuitry for
Tesla work, then stick with =high voltage=
discrete semiconductors.
-- 5-volt and 12-volt TTL and CMOS (especially CMOS!)
integrated circuits cannot be relied-upon to
stand the gaff of Tesla voltages, harmonics,
transients, reverse-polarity spikes, etc.
- - - - - -
If reason will not persuade you ...
-- Protect everything with reverse-biased snubber diodes.
Twice. (and don't stint on those diode ratings!)
-- Be double-damn dead-dog certain -- that the power supply
for the semiconductors is as isolated as it
possible can be from the power supply which
feeds the coil primary.
-- And be just as sure that your grounds are as reliable
as gravity -- rf ground and dc ground, both.
- - - - - -
Now, be a good boy -- go to your room -- and make a =nice=
Tesla coil.
Still preferring vacuum
tubes, in -- Detroit, USA
Robert Michaels
TL>From: MATTHEW A PRICE[SMTP:ch038map-at-mode.lanl.k12.nm.us]
TL>Subject: RE: KV's and multimeters
TL>Help!!!! The driver that I was talking about is now giving me seriuos
TL>problems. I replaced the TV transistor with a 3055 and the voltage was, as
TL>you said, increased, but the thing quit working. After trying a few things
TL>I decided to try a new 555, and it worked again, but quit again. I decided
TL>not to fry anymore 555 (thats what I was doing, and the things don't grow
TL>on trees!) so I wanted to ask you guys what I am doing wrong. Part of the
TL>problem may be that I need a higher voltage rated wire, but I don't know.
TL>The second time it only ran for a few seconds, and I didn't touch
TL>anything... Please tell me what I am doing wrong
TL>Thanks
TL>Matthew