1. Telebluze

    Telebluze Gold Supporting Member

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    A few questions.....

    Which are better.....the SED's made in St Petersburg or NOS Siemens?

    .....and are the XF3 Mullards good?

    ....are the real Tesla's any good?

    ......and last, what about the XF4's?

    Thanks guys!!
    Ken
     
    Last edited: Feb 15, 2009
  2. Telebluze

    Telebluze Gold Supporting Member

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    C'mon........which are better quality tubes?

    Sonically and durability....

    Ken
     
  3. RussB

    RussB low rent hobbyist Silver Supporting Member

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    what's better, apples or oranges
     
  4. Burst59

    Burst59 Member

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    Depends on the plate voltage and application.
     
  5. hamfist

    hamfist Member

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    I have an ancient pair of XF4's which are simply awesome !
     
  6. Timbre Wolf

    Timbre Wolf GoldMember Supporter Gold Supporting Member

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    Hey all - Keep in mind that there are older, '50s Dutch Philips xf3 (Sittard-made), and later-production ('70s) Mullard (Blackburn-made) xf3. Same goes for xf4. My preference is for the Sittard versions...

    - T
     
  7. Telebluze

    Telebluze Gold Supporting Member

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    Man, it's sad when you can't just get a general answer to a simple question.

    Why does it seem like everything has to turn into a "speed vs feel" rant?

    Peace,
    Ken
     
  8. 7StringJazz

    7StringJazz Member

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    I'm liking the new Tung Sols EL34Bs at present. Very tight midrange and slightly higher frequency response in the highs. More sparkle and chime. Higher headroom for cleans as well. Using them in a CAA OD100 SE+ and a single one in a Carr Mercury. Has become my favorite new EL34s. They replaced ARS (JJs). They sound almost like 6l6s but have a more prominent midrange. I also like the Winged Cs over the JJs as well but the JJs are not bad. I have winged Cs in my Shiva and have used them in a XTC 101B as well to good effect. There is no best tube, only whats best for this amp/cab and your ear. But those are my impressions. YMMV.
     
  9. Timbre Wolf

    Timbre Wolf GoldMember Supporter Gold Supporting Member

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    I think that what Russ was getting at is that there are definite character differences, but only you would know which "flavor" you favor. In all honesty, there isn't a single, general "truth."

    - T
     
  10. BeachPirate

    BeachPirate Member

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    I nearly ordered SED's recently for a 100watt amp that was going to see 485vdc on G2 under load.

    SED was my top choice before purchasing the new Ruby EL34BHT. Yes let the China tube bashing begin but before you throw a rotten tomato at me check the max voltage rating for G2 on the SED, NOS Siemens, Mullard, Tesla, etc.

    Is it anywhere near 560vdc? I'll save you some time, SED is 500vdc max, JJ 450vdc. The Ruby tubes sound great and no pops, spits, or sputters like I was getting with JJ's.
     
  11. sickboy79

    sickboy79 Member

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    In my experience - both NOS Tesla and Seimens sound better (to my ears anyway) and have better tube life than new production SEDs. I don't have any experience with XF3s or XF4s - only XF2s!
     

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