Re: Biggie size that Capacitor.?

In large power supplies that use large caps,
you will often find a 0.1 Ohm (Large Wattage)
resistor between the Rectifier and Capacitor.
This helps limit the possible surge that dumps into
the cap, thus protecting the Rectifier Diodes.
Yet the value is not so large as to drop your final
supply voltage very much.
Good Diodes today often have several hundred amper
peak surge ratings.
I've also seen really large supplies use whats called
a zero crosspoint switch to limit surges. This circuit
switches (using scr's or triacs) when the line voltage
is crossing near the zero volt level, which happens 120
times a second. Ask your electrical supplier for
"Solid State Relays" with "Zero Crossing".
An additional advantage is these are relays, so
your power on/off switch can be quite small or even
computer controlled.

Tom M.