[Elecraft] RFI: KI6WX K2 XTAL filter mod

[Ron D'Eau Claire]

> I can't seem to find this on the Elecraft site lately. Has it fallen
> from grace?
>
> 73, Rod N0RC

You can find the mod on the Elecraft WEB site under Builder's Resources,
Modifications, "2nd Stage Xfil Mod for a Flatter SSB Response."

As for its value, I questioned Wayne about  that recently and here's what he
replied:

"Let me be unequivocal on this, as I always have: the 2nd XFIL mod makes
a HUGE improvement in USB/LSB matching, and simultaneously allows L34 to
be set close to its optimal CW setting.

"I strongly recommend that everyone make the mod. It is so important that
I will be adding it to the K2 RF board the next time it is revised.."

Ron AC7AC
K2 # 1289