Many of our old radios were built by women. Look at the photos
of assembly lines in old radio magazines.

And these are radios with miswiring, poor solder joints, etc.

I think the reason women do this sort of work is that they have a patience
for it that men lack. And it's being highly skilled labor, so women -- who
have traditionally been paid less -- are hired to do it.

When I worked for Bendix Field Engineering, there was a group of women who
assembled electronic equipment for NASA STDN. They had to take a course in
reliable soldering. I wish I had taken it, but I don't think it was offered
to engineers.