>
>Rich, are you of the opinion that gettering is a false concept?
I have seen getters in Rx tubes. I have seen no evidence of gettering
in 3-500Zs. Mr. Rauch is trying to explain the lack of gas evidence in
amplifiers that sustain a big bang.
>In any case, 1400 deg C seems be to mighty hot (white hot?)
>
Indeed.
cheers, Ian
>
>measures wrote:
>>
>> >
>> >> >The 3-500Z getters itself through a Zirconium coating on the anode. This
>> >> >is the coating that gives the anode a dull powdery gray color. Zirconium
>> >> >absorbs different gases at different temperatures, with optimum
gettering
>> >> >for most gases occurring around 1400 degrees C. Optimum absorbing of
>> >> >hydrogen occurs at 350 degrees C.
>> >> ______________________________________________________________
>> >>
>> >> Very interesting. Is there a similar effect with the graphite-anode
>> >> versions?
>> >>
>> >> 73, Bill W7TI
>> >
>> >The effect is the same. The same materials are used.
>> >
>> Taurine feculence.
>>
>>
>> >Graphite tends to release more gas and other impurities more than
>> >hard metals, but otherwise gettering operation is about the same.
>>
>> Graphite anodes contain only graphite. Graphite has the ability store
>> gas, however, it does not getter. // To feed their egos, some people
>> fabricate.
>>
>> end
- Rich..., 805.386.3734, www.vcnet.com/measures.
end
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