H. M. Motley Jr. wrote:
I have a chance to buy a rather early K2 in unbuilt kit form. It's
serial number 192. It has the SSB adaptor, Noise blanker, Audio
filter, a set of pre-wound toroids and the Revision B boards and
parts and updated manual. In doing some research on the WWW, I see
there have been a number of changes/modifications over the years by
the factory and others. I've run across alternate wiring for the AF
gain and mention of a cure for BFO drift. Does someone have a list
of the various changes that I should incorporate while building this
rather early K2 should I decide to take the plunge and buy it?
Hi Puck!
If it has the rev B boards, etc., then hopefully what it is is a basic
K2 plus the K2BCOMPKT kit and a couple of other things, which comprises
what you need to bring it up to the level equivalent to serial no. 3000.
For details, see <http://www.elecraft.com/order_form_parts.htm#K2BCOMPKT>
This includes upgrade instructions. This includes the AF gain
modification that you mentioned, and also a keying waveform improvement
mod which was incorporated after serial no. 3000. Check with the seller
(I think I have a suspicion about who it is!) and verify that it
includes the stuff described in the link above.
If so, you will probably not need to make any additonal modifications.
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
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