[Elecraft] ELPAC Power Supply

[Lyle Johnson]

Hello!

A couple years ago there was a lot of discussion on this reflector about a
surplus ELPAC power supply, suitable for operating the K2 and keeping the
optional KBT2 battery properly charged.  For under $20, it was a great deal.
I have had one for two years and have been very happy with it - until today
:-(

I ran into a problem when doing some testing of the KAT100.

The ELPAC was the culprit.

Details are at http://www.fidalgo.net/~wa7gxd/k2kpa100.html.

The short version is that the ELPAC seems fine for use with a K2, but not an
external device attached to the K2.  I mention this not because you might
want to run a KAT100 with one (although you might), but if Elecraft ever
comes out with any sort of other external accessories for the K2 system, you
might have difficulties if you don't understand your power supply's
characteristics.

I am sure ELPAC is not alone in their supply's reaction to idling with no
load, then suddenly having a load applied.

Caveat emptor.

72/73,

Lyle KK7P