[Elecraft] K2 SN 192 ?

[Vic K2VCO]

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