> On 6/19/2011 2:24 PM, Allan Taylor wrote:
>> I finally picked up a 2nd 50A Astron power supply to make a pair. Are
>> there any issues in paralleling these to run the Herc II? I am going
>> to verify that the terminal voltage is identical within .01V.
>
> I did that and it worked just fine. The Herc II power connector is
> wired so that you can easily have one of the supplies feed half of the
> amp and the other supply feed the other half. I DID strap the
> regulators together, using the banana connector. I ran two #12 reds and
> blacks from each supply to the amp to keep the IR drop low. I used two
> RS70s. One was NOT enough. :)
>
> Astron RS50 are not rated at 50 amperes continuous, but rather 50 amps
peak. Exactly what that means as I do not know. I suspect that two
Astron RS50 power supplies may work with a Hercules II in SSB service,
as long as there is not much compression used. Higher power density
resulting from an RF speech processor or other processing, or even the
dahs in low speed CW could be problematic. Please let us know how it
works out.
Two RS70, which claim 70 amps peak and 50 amps average, would be a
better choice.
DE N6KB
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