On Sun, May 28, 2017 at 5:22 PM, Mattis Lind via cctalk <cctalk at classiccmp.org> wrote: EDAC 516 series. Still made, and available from companies like RS components. Be warned they are not cheap, but are very well made. You need to count up the number of pins, then order the correct 'plug' which is just the plastic moulding to hold the pins, the back shell, and the contacts. The same contacts are used in both plugs and sockets, they fit crosswise to each other. Interesting bit of trivia, the center screw, which is used to hold the plug into the socket (and to eject it when you want to separate them) has a 2-start thread. -tony