27 Oct
2009
27 Oct
'09
6:39 p.m.
Chuck Guzis wrote:
On 28 Oct 2009 at 0:44, Pete Turnbull wrote:
I thought that was Pre 1900's there. Tubes ( triodes )were mostly understood
by then. I am using 45 tubes and they came out 1929 or so.
Pentodes came out in the 1930's. Radar in 1940's
and Electronic Brains[1] 1950's.
Amazing what you (think you) can do when
you're bored.
There's a guy on the web who makes his own (cold cathode) CRTs.
We're basically talking 1920's technology here, aren't we? --Chuck
[1] Now back on topic.