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RE: Mazda Silver Anode 12AX7S/ECC83....

M, hi. The Mazda 12AX7S I have are made in France. I have not seen another 12AX7 with the "S" designator other than French Mazda. Excellent tubes. Are sonics better than any other 12AX7 types? That is a matter of opinion. I would say not necessarily. Tube rolling a Hovland HP200P? Hmmm. Only your ears can tell. There are so many other ways to improve a circuit other than rolling tubes. The only application I have seen of the 12AX7S Mazda has been in broadcast equipment. What sort of tests are you talking about? I used to get a kick out of showing tube audio afficianados the Mazda 12AX7S (rara avis) because of the bright silvery plates (not Ag metal, of course). Nickel most likely. Quite pretty and very striking. Happy Listening.


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