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Re: Sylvania 5751 3 mica gray plate (different varieties?)

Hi Mechans,

Thanks for the response. I think they are real Sylvania 5751's. They are green label JHS Sylvania 5751W1 JAN (Joint Army Navy).
It is funny how initially when a tube provides something lacking (high end detail)in a different tube's pesentation, you think it sounds better. Then after a while the deficiencies are apparent.
Anyway, I am now going thru some of my favorite 12AX7's that I had long given up on since discovering the Sylvania 5751 blackplate triple mica square getter. So far the jury is still out. Give me a little more info on the Sylvania 5751's you have (grayplate) and their sonic characteristics. I understand now that the one Joe reviewed is probably the square getter triple mica grayplate you have described as lush. How is the detail on that tube? Particularly the high end detail? I am now auditioning the Raytheon 12AX7 blackplate square getter (very good tube). It is possibly just a bit strident (only shortcoming). Next up, Mazda 12AX7 silverplate 4 bar. These are all tubes I have not listened to in a while that are getting a listen after juggling my 12AU7 slot extensively. The E80CC is best here (Tungsram or pinched waist Philips/Holland). The 6922 pinched waist is top dog in that position (either the Holland or US version, Holland slightly better). That's enough to chew on for now. All relevant posts are welcomed. Bart


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