Over the years I have used several methods of connecting to these Circuitron devises. I have used the TRW connectors (kind of OK but not super), the two piece detachable connectors (no longer available) and soldered pigtails attached to terminal strips (little more work but fool proof) sample below.
Anyone know where the detachable connectors may still be available. These have an edge board 10 port slip and clamp on half and a quick disconnect portion where the wires are attached. a quick and clean swap out. Thank you.
This photo is the most secure IMO.