18 Sep
1998
18 Sep
'98
1:19 p.m.
I don't have a variac or anything and don't
have the time or money to get
one, but I need to bring up an IMSAI power supply that probably hasn't
been powered in over a decade perhaps. What can I do to warm up the caps
and transformer before bringing it fully online? Anything?
The "poor man's" substitute for a variac has always been a 120V light
bulb in series with the AC. For something like an unloaded IMSAI
power supply, a small (15W or so) bulb might be best for starters.
That said, the capacitors are standard off-the-shelf items, and if you
do blow 'em up, just put in some new ones.
--
Tim Shoppa Email: shoppa(a)trailing-edge.com
Trailing Edge Technology Voice: 301-767-5917
7328 Bradley Blvd Fax: 301-767-5927
Bethesda, MD, USA 20817