Sam,
Yes, I cured it, see other e-mail. It was a mis-quote. Earlier, I was thinking
of a vacuum that would equal 150 psi pressure squeezing the envelope. You are
correct, it can't be over 1 atm to be a vacuum. My fault.
Best,
Will
*********** REPLY SEPARATOR ***********
On 7/28/06 at 10:56 PM S. J. Blackwell wrote:
>>From: "Will Matney" <craxd1@verizon.net>
>>Reply-To: craxd1@verizon.net
>>To: "S. J. Blackwell" <w5lu@hotmail.com>, amps@contesting.com
>>Subject: Re: Vacuum
>>Date: Fri, 28 Jul 2006 23:37:44 -0400
>>
>>Sam,
>>
>>10 atmospheres is 146.9 PSI. I could actually see this on some large
>power
>>tubes. Especially tubes with fin cooling as the fins act as stiffners.
>>Since the area that would be under pressure isn't very large, probably as
>>tall as it is wide inside the anode, it would most likely hold it ok. One
>>would be suprised how much pressure things (according to the material)
>can
>>hold. That's my guess on it, but I will find it and post the results
>>tomorrow.
>>
>>Best,
>>
>>Will
>>
>>*********** REPLY SEPARATOR ***********
>No --see previous email. The most pressure on the surface of any vacuum
>tube is 1 atm, regardless of its size, shape or what it is made of as long
>as the ambient pressure what we all live in..
>
>Best,
>Sam
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