[Elecraft] New Crystals or Not

[Paul Jensen]

> Here is the breakdown of K2 filter crystal versions:
>
> 1)  4.91-20 used on early K2s
>
> 2)  4.91-0195 used on more recent K2s and SSB options sold -before-
> approximately s/n 2570, 3/19/2002.
>
> 3)  4.91-20 (sorted to tighter Lm criteria at manufacturer) used from about
> s/n 2570 (3/19/2002) and for a short time later until we received the
> remarked crystals.
>
> 4)  4.9136-S (remarked and sorted for Lm at the manufacturer) used on 2s
> after s/n 2570 after those in #3 above were used up. These are what we are
> shipping for all K2s and KSB2s today.

I purchased my K2 (#2592) on 4/1/2002 and the crystals are marked
4.91-0195, so maybe a few kits got out the door with these older crystals.

Thanks again for Wayne & Eric designing a great radio & having this forum.
I have learned a lot reading the postings and been impressed with the
level of technical talent and the years of experience here.

Paul Jensen
AD5IW