[Milsurplus] Jones Plugs

[C.Whitaker]

de WB2CPN
The large ones were common when I began maintaining
USAF point-to-point equipment just after the war.  T-4/FRC
for one.  Some equipment with slide-in racks used them.
Jones may have named them, but Cinch and others made
them.   There were versions with a screw through the top
that held them in place.   Parallel rows were standard then.
Some of the early computer main frames used big ones.
73  Clete