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RE: 6SN7GT Hey Amphead!

I believe Rick, who owns Allegro sound, rebranded tubes "Gold Aero".

He holds the trademark for "12ax7B".

I bought 10 of them years ago from him.

They are marked Gold Aero, 12ax7B, Allegro, W. Germany

They look like Mullards but who knows?

His website is linked below.

You should ask him about your 6sn7s.


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  • RE: 6SN7GT Hey Amphead! - Tre' 12:02:55 06/16/17 (0)


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