[ARC5] 6AG7 and 6AG7Y

[1oldlens1]

The Y means a low loss mica filled base.  Another letter I think a w was used for ceramic based tubes.Sent from my Samsung Galaxy smartphone.
-------- Original message --------From: "Fuqua, William L." <wlfuqu00 at uky.edu> Date: 7/18/21  5:19 PM  (GMT-08:00) To: arc5 at mailman.qth.net Subject: [ARC5] 6AG7 and 6AG7Y 

Does anyone know the difference between the 6AG7 and 6AG7Y tubes?

Can't find full spec on Y but I do know there is a big difference between the 4CX300A and 4CX300Y tubes.

Maybe the 6AG7Y is later more durable tube???




73

Bill wa4lav



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