[Elecraft] KXPD3 connection converter

[Howard Hoyt]

Hi Paul,

Pro Audio Engineering purchased the idea from W6IPA and are now selling 
the KX Keyport as an improved version here 
<https://proaudioeng.com/kx-keyport/>.  We did announce it on the 
Elecraft-KX at groups.io list, perhaps you would like to join the 6200 of 
us KX owners there as well?

Cheers & 73,
Howie / WA4PSC