[Elecraft] KPA500 120/240

iain macdonnell - N6ML ar at dseven.org
Sun Aug 19 00:48:23 EDT 2012


On Sat, Aug 18, 2012 at 9:19 PM, Pete Lascell <plascell at verizon.net> wrote:
> How do you change the AC input power from 120 to 240 on the KPA500 ?

It's described right at the start of the Owner's Manual.


> I know the fuse values change and the fuse holder is turned to signify the
> operating voltage, but does the rotation of the fuse holder to display 240
> change connections inside for 240 volt operation?

Yes! If you look at the prongs on the back of the fuse-holder, you'll
see an asymmetric pattern. Presumably this selects whether two
windings in the transformer are connected in series or in parallel.


> If you wanted to switch from 240 back to 120 operation (for Field Day
> operation), will it take a power cord that has a standard prong plug and the
> larger fuses?  Is that all?

It would appear so ;)

73,

    ~iain / N6ML


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