William,
That's the way I always heard it too!
*********** REPLY SEPARATOR ***********
On 10/1/05 at 8:46 AM Dr. William J. Schmidt, II wrote:
>You can't. A gettering "fixes" the gas molecules permanently to the
>gettering material, so the partial pressure in the tube drops. Arcing
>does
>nothing... the gas molecules are still present and the pressure stays the
>same.
>
>Sincerely,
>
>Dr. William J. Schmidt, II K9HZ
>Trustee of the North American QRO - Central Division Club - K9ZC
>
>Email: bill@wjschmidt.com
>WebPage: www.wjschmidt.com
>
>"If computers get too powerful, we can organize them into a committee;
>that
>will do them in." -- Bradley's Bromide
>
>
>----- Original Message -----
>From: "Will Matney" <craxd1@verizon.net>
>To: <amps@contesting.com>
>Sent: Saturday, October 01, 2005 7:59 AM
>Subject: [Amps] Question
>
>
>> How can you "getter" a tube by an arc over a bad vacuum? How can just an
>> arc cause the amount of gas in a gassy tube to drop? We're not talking
>> about using true getters here, just an arc happening in a tube either
>new
>> or old that is gassy. Every tube I've ever seen do this arcing would
>keep
>> doing it and a gassy tube is a bad tube or the way I was taught.
>>
>> Best,
>>
>> Will
>>
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>>
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