When do you mean? There was no text in your post. Did you send in
HTML? If so, mailman would have stripped it out - you must use plain text.
The K2 was initially designed and released to Field Testing in 1998.
There have been several design improvements since then, and at the time
of SN3000, the boards were re-done to incorporated all the upgrades on
the board. The only change since SN3000 is the keying waveform upgrade
which is installed as part of the kit starting with SN 4660 if I recall.
The kits are still being shipped and the serial numbers are
approaching 8000.
I don't recall the years each of the upgrades were released.
Any early K2 can be upgraded to the current level with the kits and
instructions from Elecraft.
73,
Don W3FPR
On 4/20/2020 1:18 PM, Aaron wrote:
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