"Wally" wrote in message
...

I see no reason to be confused by referring to it as current. If one
connects an ammeter between the anode and the +HT supply, or between the
cathode and ground, one will read a current. If there is current at one
side
of the valve, and current at the other, then surely there is current
within
it? If the flow of electrons from cathode to anode is not current, then
what
is it?


--
Wally
www.artbywally.com
www.wally.myby.co.uk



I certainly agree. It is current. Same as in a vacuum sputter system,
although the current is supported by an ionized gas or plasma.

Which brings up another question. If a cathode is typically negative and an
anode is typically positive, and current flows from the cathode to anode in
a DC circuit, then who the heck upset my understanding half way through my
career and changed current flow from positive to negative?

Eisboch