[ARC5] OK Smart People - Mystery 211s

[Kenneth G. Gordon]

On 15 Jun 2012 at 19:35, J. Forster wrote:

> I you try to degas a tube in a hurry, ie with large currents, the
> positive ions poison the cathode and kill the Gm.

Ah! I had not thought of that. Hmmmm....OK. I think I would not use that 
method then. I got it off the website of some Dutch ham who has done a lot 
of research on amps. I have not used it myself... yet.

Thanks for the correction.

Ken W7EKB