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Old 20th May 2008, 07:10 PM   #1
nhuwar is offline nhuwar  United States
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Default data sheets for 7239 and 8068

Hi all

Can someone point me in the direction of the data sheets for 7239 and a 8068 tube?


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Old 20th May 2008, 07:36 PM   #2
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No idea on the 7239...
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Old 20th May 2008, 08:04 PM   #3
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Hi Nick,

You might look around at the link below. Both numbers are GE tubes. The files are big and I've got dial-up.

Also, the two numbers above are usually used as series pass tubes. The error amp rarely sees more then a reduced level sample of the output when used in a feedback regulator scheme. The gain of the stage makes up for that reduced level to provide good control.

Ah-ha, I found these:



Also 6842:


If the links won't work directly, go to www.rell.com >industrial>vacuum tubes>search online catalog

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Old 20th May 2008, 09:05 PM   #4
nhuwar is offline nhuwar  United States
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Tom, Victor

thanks for the help.

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