[sdiy] isolating variac unit

KA4HJH ka4hjh at gte.net
Sat Nov 3 03:12:40 CET 2007


>Second update is an AC voltage meter. Does it really matter for Variac-type
>uses to have a true RMS meter or could I just rectify and filter it and show
>that voltage.

Meters are most useful if you're working on power supplies. As you dial it
up a sudden drop in voltage/increase in current means something just
shorted.  A set of loads is also good to have for PS work. Roy's ballast
bulb sounds like a good idea.

I've been trying to get one of these put together for myself but never
found the right enclosure.

-- 

Terry Bowman, KA4HJH
"The Mac Doctor"



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