There is no screen in a triode and running them with just the bias and HV is
fine but if you want to be uber safe do not connect the anodes.
Carl
KM1H
----- Original Message -----
From: "Jerry" <jsternmd@att.net>
To: <amps@contesting.com>
Cc: "john starr001" <jstarr001@hotmail.com>
Sent: Friday, March 29, 2013 11:43 AM
Subject: [Amps] Alpha 87A - Gettering NOS 3CX800A7's
I am sending this on behalf of John who has not been able to get permission
to post yet. Please reply either to the List or to him directly at
jstarr001@hotmail.com.
I have an Alpha 87a and would like to replace with 20 year old NOS
3CX800A7
pair. These have never been used. I would like to getter the tubes by
running them for 1-2 days but I have no setup other than the 87A. I
believe
the 87A applies HV and screen voltage after a 3 minute timer period. As
long as I don't apply any RF signal, would it be harmful to the tubes to
insert them into the 87A and let them cook for a day or so with HV
applied?
73
john
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