Can a purely thermonic cathod work?

Andre Kesteloot andre.kesteloot at
Mon Sep 12 16:23:40 CDT 2005

hal wrote:

> The heater
> must, likewise, raise the temperature of the cathode to make this 
> possible since a cold
> cathode would never emit anything.
One does not necessarily need to heat up a cathode for it to emit 
electrons. Let's keep in mind cold-cathode tubes, such as the VR-75, etc.

André N4ICK

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