[Moon-net] how to prepare a GS35b

[Jerry Kleker]

My suggestion would be to run the rated heater voltage for
one week (7 days). Do this with the tube laying on the bench
(you are trying to "burn up" all of the oxygen in the tube).

You should also be cooling the tube with a "muffin fan" or
something similar. You should be able to "touch" the tube
without burning yourself.

GL es 73,

Jerry   W7QX



----- Original Message ----- 
From: "Erwin Witt" <erwin.witt at gmx.de>
To: "Moonnet" <moon-net at list-serv.davidv.net>
Sent: Tuesday, May 01, 2007 8:59 AM
Subject: [Moon-net] how to prepare a GS35b


> Hi all,
>
> my GS35b tube gave up and I have to build in a new one.
>
> Does anyone have much experience how to prepare the tube ?
>
> I read much of it but all are meanings:
>
> - temper the tube in a ofen at 60-70 degrees for some hours
> - make vakuum in a glass zylinder for some hours
> - burn it in the Amp with only heating up to a day
>
> I guess all of this procedure is to get the arc out of the ceramic.
>
> Please send me your comments.
>
> vy73's Erwin/DK5EW
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