Tom Rauch wrote:
> Which is why gettering agents intentionally added to a tube must
> be operated in specified temperature ranges. The same material
> will give up certain gasses at some temperatures while absorbing
> others, and can re-absorb the gas it gave up when operated at a
> different temperature.
>
> That's why 3-500Z's and similar tubes actually gas up and fail when
> operated too "cold" for extended periods.
Tom, in the SB 220, how would you suggest warming up the 3-500s, don't
have a 1500 Watt load and the max PEP allowed is 400 Watts. Do they have
to get "cherry red"?
Ian ZS6BTE
--
FAQ on WWW: http://www.contesting.com/ampsfaq.html
Submissions: amps@contesting.com
Administrative requests: amps-REQUEST@contesting.com
Problems: owner-amps@contesting.com
Search: http://www.contesting.com/km9p/search.htm
|