Lou,
Download the K2 A to B instructions and inspect your K2 to see which
mods have been installed.
Physical inspection is the only way I know to do it.
73,
Don W3FPR
On 5/10/2021 8:21 AM, Louandzip via Elecraft wrote:
One thing that's holding me up is doing the research to figure out which mods I've done
and which I should do. Mine is 1818 and I fervently kept up with all the mods, updates,
and tweaks for 3 or 4 years after I built it. You mention replacing the IF xtals. I know
I did that at some point because I have a little paper envelope with the set I pulled
out, and I remember doing the improved grounding mod of soldering the grounding wires to
the base of the xtal cans. IIRC, at the time some were adding additional SMT bypass caps
at the xtals but IDK where that went. There were many temp drift tweaks and mods going
on too and I have many pages in my notebook experimenting with those, especially with the
heat introduced by the KPA100. I have lot's of cryptic notes like: "Removed RF C180
to flatten 2nd IF filter. Added 10pF NPO in parallel with C72 to reduce VCO voltages.
Set L30 for 6V. Removed 1 PLL xtal X1 per Wayne." and it goes on.
Perhaps the main obstacle is it's still working FB for me. There's always that sage
piece of wisdom lurking in the back of my mind, "Don't fix it if it ain't
broke." HI HI
Lou W7HV
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [email protected]
