[Elecraft] ELPAC Power Supply

[Ron D'Eau Claire]

I scanning the stuff on your web page, let me see if I got it straight
about the ELPAC power supply...

When faced with firing off all of those big relays in the KAT100, it
allows the voltage to droop about 4 volts below normal for about 1/2
second. That causes problems for the K2 controller. That right? 

It looks like the regulator wasn't designed to respond to such large
transients quickly enough for this application. That may well be a
problem with many supplies that do not have a large capacitor at the
output. Indeed, putting a BIG capacitor across the output may take care
of the problem, provided the regulator can supply the current to charge
it up when the supply is first turned on without damage. 

Ron AC7AC
K2 # 1289