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Looking for a 7984 valve

Started by Peter Percival July 17, 2019
I'm thinking of making 
http://www.arrl.org/files/file/QST/This%20Month%20in%20QST/August%202014/JULSTROM.pdf. 
  Any thoughts about where I can get the 7984 valve?
-- 
"He who will not reason is a bigot;
he who cannot is a fool;
he who dares not is a slave."
  - Sir William Drummond
In article <qgnvo7$u68$1@news.albasani.net>, peterxpercival@hotmail.com 
says...
> > I'm thinking of making > http://www.arrl.org/files/file/QST/This%20Month%20in%20QST/August%202014/JULSTROM.pdf. > Any thoughts about where I can get the 7984 valve? > -- > >
It may be easier to subistute in a TV sweep tube that has the plate cap at the top of the tube. Just find one that the plate dissapation is close to the 7984.
On Wed, 17 Jul 2019 21:17:12 +0100, Peter Percival
<peterxpercival@hotmail.com> wrote:

>I'm thinking of making >http://www.arrl.org/files/file/QST/This%20Month%20in%20QST/August%202014/JULSTROM.pdf. > Any thoughts about where I can get the 7984 valve?
I found one on ebay for about 4 bucks plus about the same for shipping. Then looking further found another 17 sellers of that tube on ebay. Eric