Tubes Asylum

Raytheon USA Black Plates? I have ... and they are superb rarely found in Baldwin organs~nT

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In Reply to: RE: Raytheon 12AX7A US vs Raytheon 12AX7A Japan posted by slovell1 on November 15, 2020 at 00:15:59

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RE: Raytheon USA Black Plates? I have ... and they are superb rarely found in Baldwin organs~nT - slovell1 13:09:50 11/21/20 (9)
I've collected several pairs of the 12AX7, 12AU7, and 12AT7 black plate Raytheon/Baldwin USA versions. I use them in my Jolida Fusion preamp, JD9 phono pre, and my JD100 cdp. They sound very good, better that anything else I've tried in them and I've tried a bunch. IMHO they're the best sounding tubes I've heard in my Jolidas and you can't beat the price. I've also got one pair of the 12AX7 short gray plates version but don't like them as much as the black plates. Highs are slightly rolled off, mids are more prominent, bass is also slightly rolled off. Still a nice sounding pair of tubes but not as good as the black plates.
- This is the one you want....... - Mendel 12:39:36 12/19/20 (8)
  Black plate, bent square getter.
  - RE: This is the one you want....... - slovell1 00:43:36 12/31/20 (6)
    What's the difference in sound between the bent square getters and the O getter version?
    - RE: This is the one you want....... - Mendel 10:07:26 01/02/21 (5)
      The o getter version came afterwards in the 1960s.
      Still a very good tube, much more available than the earlier version. Just not quite as good as the bent square getter version.
      All the Raytheon black plate 12ax7s and 5751s are good tubes.
      - RE: This is the one you want....... - slovell1 17:57:10 01/10/21 (3)
        
        In Reply to: RE: This is the one you want....... posted by Mendel on January 02, 2021 at 10:07:26
        
        I tried a pair in my headphone amp today and I'm impressed. They have a little bit more of everything vs the halo getters. It's not dramatic but I can definitely hear the improvements. The bass is fuller and tighter, mids are better, the highs are more distinct with a little more sparkle. Thanks for bringing them to my attention.
        
        Edits: 01/10/21
        
        RE: This is the one you want....... - Mendel 11:49:22 01/11/21 (2)
        
        In Reply to: RE: This is the one you want....... posted by slovell1 on January 10, 2021 at 17:57:10
        
        Glad they worked out for you.
        Have you tried any 5751 in your 12ax7 spots? A useable sub in nearly any circuit. The Raytheon black plate "windmill getter" 5751 is an even better tube IMO. Enjoy the roll!
        
        RE: This is the one you want....... - slovell1 16:28:58 01/11/21 (0)
        
        In Reply to: RE: This is the one you want....... posted by Mendel on January 11, 2021 at 11:49:22
        
        At $450 a matched pair I don't think I'll be trying any windmill getters unless I hit the lottery.lol
        
        RE: This is the one you want....... - slovell1 11:55:24 01/11/21 (0)
        
        In Reply to: RE: This is the one you want....... posted by Mendel on January 11, 2021 at 11:49:22
        
        I've tried some GE JAN 5751 triple mica black plates. They sounded decent but not on the same level with the Raytheons IMHO.
        
        Edits: 01/11/21 01/11/21
      - RE: This is the one you want....... - slovell1 17:32:29 01/04/21 (0)
        
        In Reply to: RE: This is the one you want....... posted by Mendel on January 02, 2021 at 10:07:26
        
        I've got four pairs of them, all long black plates with bent square getters, on the way. Ran across them on Ebay for $130 and jumped on them. Looking forward to hearing them vs the halos.
  - RE: This is the one you want....... - slovell1 12:59:03 12/19/20 (0)
    Thanks, I'll keep an eye out for a pair. I don't recall seeing any of them for sale.

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