Re: Tube question

To: "tesla-at-pupman-dot-com" <tesla-at-pupman-dot-com>
Subject: Re: Tube question
From: Dick Gray <rjgray-at-rmii-dot-com>
Date: Mon, 10 Jun 96 11:08:23 -0600

On Sun, 9 Jun 1996 22:25:03 -0600, Tesla List wrote:

>>>From: Steve Roys <sroys-at-umabnet.ab.umd.edu>
>>>To: tesla-at-pupman-dot-com
>>>Subject: Tube question
>>>
>>>I saw some tubes today that were marked (I think) 676 Power tubes, and I 
>>>was wondering if anyone knew what they were and if they would be good to 
>>>build a tube TC.  They were power company surplus, were about 8" or so tall, 
>>>had 4 pins on the bottom, and a connector on the top of the tube.  A 
>>>paper in the box warned that xrays would be produced if the tubes were 
>>>used above 15kV.
Steve, According to Westinghouse data I have, the 676 is a mercury
vapor thyratron fil V.5.0-at-10a, Ia max=40a, Iave=6.4a, anode
volts=2500. The warning would be more apt to go with a 673(Hg rect)
or a 678(Hg thyratron) both have anode ratings of 15 kV.
--Dick--
rjgray-at-rmii-dot-com