[Elecraft] K3 BUFFER MOD?

[Bill Maddock]

Guys,

  Later today I will start building my LP-PAN kit - I was wondering
if the K3 Buffer mod that is recommended will void the warranty
on my radio? Is it really worth the effort? Where is best place to
attain parts? I have the K3 Audio line out mod kit to do figured
I should probably do it all at the same time? My S/N is 1059

Thanks and 73,

Bill N4ZI