On 11 Nov 2004 16:11:58 GMT, ohawker (Andy
Evans) wrote:

The thermionic valve is one hundred years old this week. Happy Birthday

Hello Don - very interesting! Can you elaborate on what exactly happened 100
years ago? Andy


The first diode valve happened. It was a development of the light
bulb.

d
Pearce Consulting
http://www.pearce.uk.com