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RE: Try Amperex orange globe 6dj8 If your amp isn't too hard on them

Posted by steve.ott@kctcs.edu on January 8, 2017 at 16:27:25:
I believe the max plate voltage of a 6dj8 is about 130 V, while it is around 220 for a 6922, so if an amp has been designed around a 6922, it could be harder on a 6dj8, and so will not last as long as the 6922.

Check with your amp manufacturer.