Need to bring up a power supply - test-drb@ccmp.vtda.org

18 Sep 1998

At 04:51 PM 9/18/98 -0700, Sam wrote:
...

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?

Sam                                        Alternate e-mail: dastar(a)siconic.com
Connect a light bulb in series with the 120 volt line and power supply. Say
60 watts. The large caps you can estimate their capacity by seeing how long
they will light a small lamp after the supply is turned off. (12 Volts for
the +8Volt line, 24V for the +/-18 volt). Or you can time the discharge from
the bleeder resistors.
-Dave