Look at http://www.nd2x.net/base-1.html and scroll to the bottom and
hit the "tube prep" button.
Alternatively, just mount the tube socket in a box and poke a blower
in the side and mount the filament tranny in there. Plug in the tube
and let it run on filament and fan for a week and she'll be nicely
cooked. I've done GU84, GI7B, GS35B and FU728F tubes like this.
Currently I'm cooking a pair of GU74B's.
73, Alek.
VK6APK
At 05:51 AM 20/12/2010, Dennis Goebel wrote:
>I'm going to give a russian tube a try GU-43B.
>
>Anyone know how to condition a NOS tube like this that's been
>sitting around since 1985?
>
>
>
>
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