On Jun 8, 2006, at 1:55 AM, Glenn McNeil wrote:
> Hello Gang,
>
> I've just been given a pair of RCA 8122 Tubes...never used, still
> in the
> original boxes. Date code 69-04.
>
> What are the chances they are still OK for use ?
Very good if the Al-Ox ceramic has a purplish color from added
manganese. A high-potential tester will give the answer is
seconds. With 5kV between the anode and screen, there should be less
than 5uA of leakage. i would not uses these tubes in a unmodified
NCL-2000.
>
> Any ideas
>
> 73
>
> Glenn
> VK4TZL
>
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>
R L MEASURES, AG6K. 805-386-3734
r@somis.org
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