Very much On Topic: Integrated Vacuum Tubes

[Pete Turnbull]

On Apr 21 2005,  9:06, Stan Barr wrote:

> There were some very small wire ended ones made for proximity fuzes
in
> anti-aircraft shells.  They are about the size of one of those small
> neons.  Someone in the USA has a stock of new ones and I wouldn't
mind
> getting a few to play with, but I've lost his address.
>
> Back in the '60s I had a little portable radio that used wire-ended
> valves/tubes about half an inch diameter and an inch long.

I had some of those.  They were wire-wrapped onto printed circuit
boards which were mounted in lightweight alloy chassis, all made at
Ferranti, supposedly for or from the TSR2.

-- 
Pete						Peter Turnbull
						Network Manager
						University of York