[Milsurplus] How Much Vacuum in "Vacuum Tubes?"

[Jim Whartenby]

Making a transistor should be much easier then making a vacuum tube.
No vacuum pump or flames, just a steady hand, a microscope, a jig to
hold everything and couple 1N34 diodes for parts should produce a point
contact transistor.

There was an article in the October, 1948 issue of "Radio and
Television News" which gave step by step instructions.
Point contact, anyone?
Regards,
Jim

> Making tubes is certainly practical in a small facility. Not so for
> transistors or ICs.
> 
> -John