[Elecraft] K2 circuit breaker

[charles]

On Friday 08 June 2007 01:18, Don Wilhelm wrote:
> If you are seeing erratic HI SWR on your antenna, consider that the
> KPA100 could be oscillating (especially if it happens on 40 meters) - if
> that is suspected, I recommend that you add the KPA100UPKT.  If your
> KPA100 kit was shipped after last December, it already has the upgrade,
> but if it is earlier, it is wise to add it.

Nr 5901 was shipped on 13th December 2006.
Would it contain the upgrade?

Charles - M0BIN