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Original Message
RE: What does "aged" mean ?
Posted by megasat16 on January 10, 2017 at 11:34:24:
Means they are burned in and ready to be installed. Some new tubes may have excess gases or gassy from factory. Power was applied to the heater to absorb excess gasses and the tube was retested to make sure no shorts and leakages out of ordinary and everything is according to their (HP) design spec. "Aged" tubes are QA'd by HP and repacked so they are ready to be used off the shelf by the field service technician or the repair centers. HP made very sensitive tube based electronics measuring equipment and quality of tubes is very important to them.