[Elecraft] Ijterface between 30L1 and K3

[John]

Gentlemen,
While I am certain that this topic had its airing, I cannot find any 
reference in the accumulation of the '...Digest' I have at hand.  At the 
risk of resurrecting an old issue, I ask your indulgence and aid  in 
obtaining information concerning the requirements / indiosyncracies 
relating to conecting a K3 to a Collins 30L1 amplifier.
Thnk you in advance for your consideration in this matter.
John Kountz, KE6