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Favorite EL 84's in an SWR IOD

Discussion in 'Amps and Cabs [BG]' started by Freuds_cat, Jul 2, 2008.

  1. I have an SWR IOD and it has the original Sovtek EL 84's (although they have just gone microphonic on me). Not keen on 'em anyway.


    So I need suggestions and descriptions of what Tubes you think I should buy. A description of why you feel that way would be good too.

    I play classic rock, some heavy some more bluesy but no Jazz or anything that requires a too clean or smooth sound.

    All opinions gleefully accepted :help:
  2. Bassmec


    May 9, 2008
    Ipswich UK
    Proprietor Springvale Studios
    Its a matter of taste but I have been messing around with vintage vortexion studio equipment for a while using this tube type.
    And having rolled quite a few tubes, it seems to me that Brimar tubes are a little fuller maybe richer in the low mid bass but overall I think
    the mullard wins for most circuits using this tube.
    You know the old saying "Don't be a dullard use a Mullard"
  3. JGR

    JGR The "G" is for Gustav Commercial User

    Jun 29, 2006
    President, CEO, CFO, CIO, Chief Engineer, Technician, Janitor - Reiner Amplification
    I use TAD (tune amp doctor) in mine which are very robust. Not sure how much of a difference they made over the ones that were in there previously. I think a larger effect is the bias - play around with it if you a comfortable - I wouldn't recommend that in a normal tube amp power section but it should be fine in this design. There is a trimmer pot inside the unit and it has a reasonable effect on how clean or nasty things get.

  4. i checked in with the folks at eurotubes and they hooked me up with some high gain JJs. great sound. awesome preamp. i've been using it exclusively for about 3 mos. now.