[Amps] Conditioning certain tubes

[GGLL <nagato@arnet.com.ar>]

        I have  two NOS 8122 RCA tubes, these have been stored many years, and 
my
question is if these tubes also need conditioning as the other "glass" tubes
before use, and if so, may I have to follow  any procedure?.  Does it applies
to the other similar ceramic tetrodes (4cx250b, etc.).

Thanks in advance
Best regards
Guillermo - LU8EYW.
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