I have purchased several NIB Electroharmonix tubes. These are the new variety and not NOS. Does anyone know what the anticipated shelf life is on these newer tubes or any reason to believe that they will degass or otherwise degrade faster than NOS from 20 or more years ago?
Getter material doesnt' need to be hot to do its' job.
Old tubes can work a long time. In my main rig, the preamp is using tubes from the 1920s, and the ones in the amps are from the late 20s through 1940s.
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