[kbr2000]

There's another guide [0] for wire wrap technique (solderless, cold welded connections to square posts [1]). Used extensively in telephony switching/patching in the past, as well as digital circuit construction like computers. Quite nice for prototyping, although qualitative sockets/posts can be hard to acquire at a reasonable price nowadays.

[0] https://workmanship.nasa.gov/lib/insp/2%20books/links/sectio... [1] https://en.wikipedia.org/wiki/Wire_wrap

[CobaltFire]

Rebuilt a unit with over 7,000 wire wraps in it back in 2009 for F/A-18 flight computer testing. An electrical short had caused several runs to melt and basically run a hot knife through the internal wiring.

Had to rebuild it from original hand written point to point wrap instructions (of which there was only the original) coupled with all the changes in the 30 years since original build.

That was a hell of a project.