[Milsurplus] Fwd: Re: Analysis of RAK/RAL Power Supply CND-20131

[Richard]

Addendum #2.

Just got done testing with choke input filter with interesting results:

110 vac    150.9 vdc

115           157.1

120           162.6

125           170.6

130           171.2

Ripple voltage is a few milivolts - hard to measure.

Looks useful to me; 163-171 volts is close enough to 180, and works very 
well.  Varying voltage has little effect on output.  I cut back the 
current through the VR tube to 10 ma. so now the load isn't enough to 
get under Ballast tube regulation, but who needs it?  The capacitors 
test very good, so the original arrangement is also perfectly viable.  I 
had a hard time sorting out the capacitor leads. Yes, I know they're 
color coded, but after 70 years they all look alike.

Richard, AA1P

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