[Milsurplus] PP-4763 and dynamotors

[Robert Goff]

People smarter than me (just about all of you!):

Anyone who owns one of these power supplies (built for the GRC-106)
know that they do not handle inrush current well at all. Anything over
50A and the breaker trips. So, in an attempt to free up my big PP-1104
for 12 volt use, I built a "dynamotor starter" based on an ER article
a few years ago.

In the article they use 12 350F "super caps" across the power supply
with a large power resistor (1 ohm 250 or so watts) to limit the
inrush current.  A switch across the resistor is then used to short it
out when the caps are charged.

Since I didn't have a similar power resistor, my breadboard version
uses a 300W light bulb as a current limiter. It takes something like 5
minutes before the caps charge to the point that the lamp goes out, at
which point I short the bulb and BOOM the power supply still shuts
down.

I'm thinking the super caps are not reaching full charge and obviously
5 plus minutes is way too long to wait, but before I go and order an
expensive power resistor, I'm wondering will a lower series resistance
solve the problem? A 300W bulb at 120 works out to 48 ohms hot, cold
resistance measures 3.8 ohms.

Or is the PP-4763 just unsuitable for this application?  Anybody tried
something like this? I would welcome any input or suggestions.

Thanks,
de Robert W7MKA