"m II" wrote in message
news:VDu2d.18093$yW6.13283@clgrps12...
Idea #493

I figure if I can heat a filament inside a glass cylinder filled with
inert gas, I can get a thermionic action and get a process of
'amplification' via anodes and cathodes. I can call this a 'valve'.


This may or may not prove useful.

Now THERE'S a great idea....

Mark.