[Amps] Amps Digest, Vol 90, Issue 30

[Bill, W6WRT]

ORIGINAL MESSAGE:

On Fri, 25 Jun 2010 13:04:13 +0200, "BEHIELS JEAN-PIERRE"
<ON4AEF at base.be> wrote:

>I do not found real exact values,most guys are talking about 200mA for a 
>GS35b-tube ?
>Running more BIAS or anode currents will surely destroy the life time of the 
>tube ?

REPLY:

In theory, running the tube with higher idle current would reduce the
tube life, but in the real world where you are driving the tube with a
signal all the time, I doubt if you would ever notice any difference.
Only if the tube sits idle with no drive for hours on end would it
matter. 

Disclaimer:  This is just an opinion - I have not done any experiments
to prove it either way.

73, Bill W6WRT