Marshall EL34M tubes

Discussion in 'Marshall Amps' started by StingRay85, Nov 16, 2019.

  1. StingRay85

    StingRay85 Active Member

    Joined:
    Aug 18, 2019
    Messages:
    159
    Likes Received:
    78
    I have an early 70s Carlsbro PA100 amp with these tubes inside. Can't seem to find good info on them. Anyone has seen them before? Would they be any good for a Super Lead?

    1573920929947-1113x835.jpg
     
  2. Dogs of Doom

    Dogs of Doom Moderator Staff Member

    Joined:
    Aug 2, 2012
    Messages:
    19,816
    Likes Received:
    20,003
    Location:
    Los Angeles
    are there any #'s on them?

    There's a sticky, in the tube section, giving the codes...
     
  3. StingRay85

    StingRay85 Active Member

    Joined:
    Aug 18, 2019
    Messages:
    159
    Likes Received:
    78
    No codes whatsoever
     
  4. Dogs of Doom

    Dogs of Doom Moderator Staff Member

    Joined:
    Aug 2, 2012
    Messages:
    19,816
    Likes Received:
    20,003
    Location:
    Los Angeles
    I forget, who made the dual square getter tubes.

    If they are in good shape, they should be good in any amp that is set up for EL34. If you have a tester, that would be optimal. Do they seem to work properly, in the amp you pulled them from?
     
  5. EADGBE

    EADGBE Well-Known Member

    Joined:
    Dec 13, 2009
    Messages:
    450
    Likes Received:
    311
  6. pedecamp

    pedecamp Well-Known Member

    Joined:
    Dec 7, 2009
    Messages:
    13,629
    Likes Received:
    9,928
    EL34M thats what I run in my 2204, mine are from Groove Tube, my favorite power tubes in that amp. :yesway:
     
    Last edited: Nov 16, 2019
  7. ampmadscientist

    ampmadscientist Well-Known Member

    Joined:
    Jun 26, 2014
    Messages:
    14,863
    Likes Received:
    8,724
    Location:
    Start the reactor... Free Mars!
    Watch out.
    The keyway is broken off of one of the tubes.

    keywaybusted.png This will allow the tube to be inserted incorrectly into the socket.
    This could cause major problems...
     
  8. StingRay85

    StingRay85 Active Member

    Joined:
    Aug 18, 2019
    Messages:
    159
    Likes Received:
    78
    I know. I can still see how to plug it in correctly. Thanks for the heads up though
     
  9. RickyLee

    RickyLee Well-Known Member VIP Member

    Joined:
    May 22, 2010
    Messages:
    9,631
    Likes Received:
    3,113
    Location:
    Riverside CA U.S.A.
  10. Dogs of Doom

    Dogs of Doom Moderator Staff Member

    Joined:
    Aug 2, 2012
    Messages:
    19,816
    Likes Received:
    20,003
    Location:
    Los Angeles
    MonstersOfTheMidway likes this.
  11. Dogs of Doom

    Dogs of Doom Moderator Staff Member

    Joined:
    Aug 2, 2012
    Messages:
    19,816
    Likes Received:
    20,003
    Location:
    Los Angeles
    these are Philips Holland: (DD getter)

    [​IMG]
     
    Last edited: Nov 16, 2019
    MonstersOfTheMidway likes this.
  12. Dogs of Doom

    Dogs of Doom Moderator Staff Member

    Joined:
    Aug 2, 2012
    Messages:
    19,816
    Likes Received:
    20,003
    Location:
    Los Angeles
    another RFT: (dual halo)

    [​IMG]
     
    MonstersOfTheMidway likes this.
  13. Dogs of Doom

    Dogs of Doom Moderator Staff Member

    Joined:
    Aug 2, 2012
    Messages:
    19,816
    Likes Received:
    20,003
    Location:
    Los Angeles
    Mullard: (single halo)

    [​IMG]
     
  14. Dogs of Doom

    Dogs of Doom Moderator Staff Member

    Joined:
    Aug 2, 2012
    Messages:
    19,816
    Likes Received:
    20,003
    Location:
    Los Angeles
    You'll have to find images of those horizontal flat square getters
     
  15. RickyLee

    RickyLee Well-Known Member VIP Member

    Joined:
    May 22, 2010
    Messages:
    9,631
    Likes Received:
    3,113
    Location:
    Riverside CA U.S.A.
    Old China 12AX7 had square getters. Maybe they are Chinese built?
     

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice