what kind of strange 12AX7 is this ???

Discussion in 'Amps/Cabs Tech Corner: Amplifier, Cab & Speakers' started by foxyguitars, May 15, 2015.

  1. foxyguitars

    foxyguitars Supporting Member

    Messages:
    226
    Joined:
    Mar 23, 2008
    It came inside a Sterling Hiwatt amp from the early 80s, no markings other than the red 12AX7 marking, it's fatter than a traditional 12ax7, and has this weird additional top mica layer, like a table top ! has high output , bass, treble, very little mids.

    anyone know what brand / model / who made it ?

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]
     
  2. Blue Strat

    Blue Strat Member

    Messages:
    30,033
    Joined:
    Aug 2, 2002
    Location:
    Sterling, VA (not far from Washington DC)
    Chinese, probably Shuguang.
     
  3. RussB

    RussB low rent hobbyist Silver Supporting Member

    Messages:
    11,071
    Joined:
    Jul 3, 2004
    Location:
    CT
    Yep, your basic Chinese 12AX7. They haven't visually changed much over the last few decades. I'm very surprised you've never seen one before, as they come in the vast majority of tube amps made today
     
  4. foxyguitars

    foxyguitars Supporting Member

    Messages:
    226
    Joined:
    Mar 23, 2008
    thanks !
    I'm used to see more boutique and vintage gear, so I guess yep, never seen those chinese tubes before :p sorry and THANK YOU !
     
  5. Doug's Tubes

    Doug's Tubes Member

    Messages:
    9,726
    Joined:
    Oct 12, 2004
    Location:
    NY
    Let's see a pic of the getter, I'm wondering if it's a square foil one.
     

Share This Page