Normally AA uses Jan Philips 6021W. What cryo tube is used in SE upgrade (Philips, Sylvania) ? I have emailed Globe Marketing recently they do not respond.
I think the cryo 6021W they use is Sylvania. I think Globe is out of business. I think there is supposed to be a new Audio Aero distributor announced soon. I would wait for a distributor to be named and contact them for cryo 6021W tubes, I can't find them either.
I have contacted France Audio Aero too, but they did not bother to respond. I'm out of luck trying to find Sylwania 6021W, But I have found Raytheon 6021W. Have anybody compared different brands of 6021W, is really Sylvania's the best one ?
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