[BC] Kevlar cored wire?

[PeterH5322]

At Amdahl Corp, we had our coax made to our spec by W.L. Gore Company 
(Gor-Tex?).

For these one-time super computers, Gor-Tex coaxial interconnections was 
the only way to interconnect the ninety-six multichip carriers within the 
S/I/E Units (Storage/Instruction Fetch/Instruction Execution; 96 MCCs) 
and the C Unit (Channel; 47 MCCs).

This was the world's first all-LSI mainframe, and all signal paths, 
except for the S/370 OEMI interfaces, which were external interfaces, 
anyway, were MECL 10K, over doubly terminated coaxes.

Even the "rework" was by coax, affixed the the solder side of an MCC 
using a laser bonder of our own design.

We were using 24-layer boards when most of the rest of the industry was 
just making the transition from double-sided boards to 4-layer boards.

And, 0.025" design rules, when most of the rest of the industry was using 
0.100" design rules.

Gor-Tex coax ... the mind boggles.