[ARC5] Building a power supply for an ARC setup

Fred Cousins fred_cousins at comcast.net
Sun Apr 21 22:37:41 EDT 2013


I have been hunting around for a HV transformer for a power
supply specifically for a BC-696 (and a future series modulator) - and last
year happened on what looks like a half finished power supply consisting of
a Freed RPG-26 at a local hamfest.

According to the specs this transformer can deliver 900v at 320 va. Yikes -
a bit TOO much voltage.

 However, this transformer has a nice feature in that the secondary is
actually TWO separate secondaries - each one (I'm guessing) delivering 450v
on an 16 ohm coil.

My question is:   Can I parallel the secondaries for 450V ac with more
current?

 According Duncan Amps PSU Designer- that would give me around 528 volts DC
 IF I  can find a 5hy Inductor that will withstand the current load.

Am I barking up the wrong tree?  I need an OT to straighten me out then....


Thanks for all your help in advance.


Fred Cousins

KD7EDW


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