[Milsurplus] Making Tubes

[J Forster]

Yes and no. While the product is fairly complicated, the individual
steps are not really high tech. They are all essentially 1900 technology
and require far less precision than making a clock or watch. Even the
raw materials are pretty straight forward. Nothing like the technology
needed to produce intrinsic or extrinsic silicon or germanium, let alone
a junction or transistor.

-John




From:   "Albert LaFrance" <lafrance at att.net>

It's amazing to me that such intricate devices were produced in such
vast
quantities, at affordable
prices, in an era when manufacturing technology was far les
sophisticated that it is
today.

Albert LaFrance