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Ralph Mowery

In article ,
says...

That's probably wire wrap wire. It's all #30AWG tin plated solid
wire.
https://en.wikipedia.org/wiki/Wire_wrap
The technology is mostly obsolete today. There were huge piles of the
pre-cut wire lengths and spools scattered all over the local surplus
stores. I have a few large bundles left that I use for making
breadboards. Highly recommended.
https://www.ebay.com/sch/73139/i.html?_from=R40&_nkw=wire+wrap+wire

The only things I use magnet wire for is torroid inductors and
repairing motors.

At one time I was using some of the wire wrap wire to build things but
soldered it in instead of goig the wire wrap way.

I looked on ebay and seems to me that wire is still sort of high as I
would think like you said, almost no one would be using it now. Just
about all the new stuff is SMD.

With the new software one can draw up the circuit and have a PC board
made for almost nothing now.

A ham made a modification to the uBITX transceiver and would ship 2 PC
boards that were about an inch square and had 2 or 3 transistors,
resistors and capacitors for only $ 5 . Said that was about his cost.

Sure wish there were some local surplus stores close to me, but none
around.

de ku4pt