[ARC5] "Quiet" ARC-5 Keying

[David Stinson]

If you really want to keep the keying "quiet," key all the B+
(meaning just the 550 volt line into the "correct" voltage divider
 per the manual and a past post)   as Mike suggests,
but do it with a Hi-Voltage MOSFET.
Here's a new one that can handle 900 volts at 20 amps!
http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=497-8772-5-ND
FETs for switching high voltages and currents are common now.
I invite The Smart People here, who have helped me many times,
to tell you all about it.

73 Dave S.

P.S. Ian; was I supposed to send you some information?
Please forgive as I tend to forget things lately... very 
troublesome...