On 4/9/11 3:03 AM, jb-electronics wrote:
Hi again, and thanks a lot for the replies, but I still have some
questions.
I do not really understand how to use an AC voltage supply (the Neon
supply John pointed me to for example, or the inverter circuit David
mentioned) with a tube that has just one electrode. Obviously, I connect
one of the wires to the electrode, but what should I do with the second
wire? I guess one of the wires will be internally connected to GND, so
just leave this one disconnected?
The plasma exists between the two ends of the power supply, so you need
to get the other end of the power supply to the other end of the tube,
or it won't do anything useful.
This is done with plasma spheres by putting one end of the power supply
at the center of the sphere and the other end is "ground", the outside
of the sphere. But a long thin tube requires the volts to go from one
end to the other end.
A wire comes to mind.
--
David Forbes, Tucson AZ
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