[Elecraft] K2/100 up-date

[Louandzip]

 Great.  Thanks for the tip.  Downloaded and added to my ham to-do list, which is rapidly getting lengthier. HI HI.
Lou W7HV

    On Monday, May 10, 2021, 8:35:36 AM MDT, Don Wilhelm <don at w3fpr.com> wrote:  
 
 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
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