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Darkvoice 336i & 336SE Tuberolling PartII

Discussion in 'Headphone Amps (full-size)' started by heatfan12, Jul 31, 2008.
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  1. maheeinfy
    you might be right. my new Russian Tung-sol 6SN7 hum a lot, but the GE doesn't. But it could also be because the TungSol needs some burn in to get rid of the hum
  2. MajorRocker
    Before I had the fitz mod done any tube I put in hummed like crazy. I think it took 2 days of it on for 24/7 before the hum stopped or at least I could listen and not be bothered. I found that really annoying so I got a family member to do the fitz mod for me. If you plan on changing out tubes often I would do this mod.
  3. Necron99
    Same here! None of my NOS tubes hum at all! I have RCA, Silvertone, and a Tung-Sol, but a US built version, and none hum. The newer Russian Tung-Sol hums. Hmmm, guess I have some burn in time to do!
    Last edited: Jun 19, 2018
  4. dobigstuff
    If you can get a NOS RCA 6AS7 you will enjoy. There should be no hum at all. I will post 4 combos I have used.
  5. dobigstuff
  6. dobigstuff
    Tung-Sol 7236.jpg
    NOS USA Tung-Sol 7236 Power w/ NOS USA Tung-Sol 6SN7Driver
  7. dobigstuff
    Darkvoice 2.jpg
    NOS RCA 6AS7 Power w/ NOS USA Tung-Sol 6SN7 Driver
  8. dobigstuff
    Western Electric 421 A.jpg

    This is the Best Combo for me:

    New Western Electric 421 A Power Tube w/ USA NOS Tung-Sol 6SN7 Driver

    Happy Tube Rolling!!
  9. ohsigmachi
    I have a vintage GE 6080 6AS7 power and a NOS Silvertone 6SN7GTB driver arriving soon.

    Super psyched for this combo!
  10. maheeinfy
    is the fitz mod easy to do? is there a guide
  11. MajorRocker
  12. maheeinfy
    I see two adapters for the 6SN7. Which one is the correct to use with DV ?

    6922 to 6SN7 adapter
    12AU7 to 6SN7 adapter
  13. rusnak666
    Hi, im new in tube rolling, do you any of you know JJ tubes? I found 2A3 - 40W and 300B tubes, charakteristics are:

    A. F. TRIODE
    Uf = 2,5 V
    If = 2,5 A

    Typical characteristic:
    Ua = 250 V
    Ug = -45 V
    Ia = 60 mA
    S = 5,25 mA/V
    m= 4,2
    Ri = 800 Ω

    do these tubes work in darkvoice 336se? Thanks
  14. ohsigmachi
    No the 300b tubes donçt have the right number of pins.

    The Darkvoice takes 6AS7G / 6520 / 6080 tubes.
  15. bluzeboy
    I, ve been using a GE 5998A power tube & suddenly it started un seating itself after I turn off the amp

    If re seat it works fine,what could be causing to lose it seat?
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