We've had a few requests for a reversed K4 rear panel drawing. This is a handy aid for finding cables and connectors without having to look directly at the rear panel. This drawing is now available on our K4 manuals page. Here's the direct link: https://ftp.elecraft.com/K4/Manuals%20Downloads/K4%20Rear%20Panel,%20Reversed.pdf 73, Wayne N6KR