Turns out that twinax is the IBM token ring cable and connector that screws in.
But the hint led to twin BNC as Amphenol 31-224 and Pomona. The Pomona description is a PDF at the link below: http://www.tequipment.net/pdf/Pomona/4957.pdf Many thanks for your help. Bill Hawkins _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
