[Amps] Vacuum

[Will Matney]

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 at verizon.net>
>>Reply-To: craxd1 at verizon.net
>>To: "S. J. Blackwell" <w5lu at hotmail.com>, amps at 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