Airy R. Bean wrote:
As time passes, valves of the sort and size that we use in our TX's
are becoming increasingly rare and expensive.

snipo
Armed with such a body of knowledge, could we Radio Hams, as a body
of
technically-motivated and technically-inspired aficionados, then
consider
manufacturing our own?


You really are a prize fool. The invention of the Thermionic Vacuum
Valve (tube) held up the development of transisters by around 20 years.
They were **** in the 30's and are still **** today. Just think what we
could be doing now, 20 years further down Moores Law curve.
You are living in the past Bean.
- a32ws