Are 7189 compatable to replace EL84 tubes?

Discussion in 'Amps and Cabs' started by consoleb, Feb 3, 2008.


  1. consoleb

    consoleb Member

    Messages:
    27
    Joined:
    Jan 29, 2008
    I have some old Amperex 7189 tubes and somewhere I read they are compatable to use where a EL84 is used is that true?
     
  2. consoleb

    consoleb Member

    Messages:
    27
    Joined:
    Jan 29, 2008
    What about for use in a guitar amp. I just bought a GIbson Goldtone GA30rvs and am waiting it's arrival. and I may want to trade but I want to learn more first.
    Thanks
     
  3. slider313

    slider313 Silver Supporting Member

    Messages:
    7,230
    Joined:
    Jul 28, 2005
    Location:
    NC
    I'm using a set of RCA 7189's in my Goodsell Super 17 with great results.
     
  4. Lil'Strat

    Lil'Strat Member

    Messages:
    258
    Joined:
    Feb 26, 2006
    Real 7189s are the Holy Grail... do not part with them under any circumstances.
     
  5. consoleb

    consoleb Member

    Messages:
    27
    Joined:
    Jan 29, 2008
    Lil,Strat thank you for your advice.
     
  6. AdmiralB

    AdmiralB Silver Supporting Member

    Messages:
    3,071
    Joined:
    Aug 24, 2004
    Location:
    Central Indiana
    Any 6BQ5 from ~1980 up through the end of US production *is* a 7189. They simply made one tube to the higher specs and put both designations on it.
     
  7. zoooombiex

    zoooombiex Supporting Member

    Messages:
    2,548
    Joined:
    Apr 13, 2004
    Location:
    Columbus, OH
    I put a set of Bugle Boy 7189s in a Two-Rock Ruby and forgot to put back the original tubes when I sold it (or at least to charge a little something extra). Doh!
     
  8. Lil'Strat

    Lil'Strat Member

    Messages:
    258
    Joined:
    Feb 26, 2006
    If consoleb's 7189s are old Amperex, it is likely that they were made in Western Europe, probably Holland. They last a long time, holding their spec better than any current eastern republic '84s. It is possible to coax >20w from a pair with a plate supply @440-450v. A well-matched quad can be geeked up to 50w with a combined cathode resistance of 50 ohms and a cooling fan... but that would compromise the longevity a bit.
     
  9. consoleb

    consoleb Member

    Messages:
    27
    Joined:
    Jan 29, 2008
    I haven't bought tubes in about seven years (sold my amp) WOW have prices jumped for NOS tubes. You guys are great! keep up the good postings.
    Thanks
     

Share This Page