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Vali 2 tube rolling

Discussion in 'Headphone Amps (full-size)' started by capt369, Jan 8, 2016.
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  1. DeeKay10
    Fair enough, thanks. The 6CG7 does run warmer.
    I actually don't mind about tube life, these are cheap enough to refresh once a few years.
  2. KoshNaranek

    I did. Sorry
  3. HOWIE13
    My understanding is that the visible glow in the tube is entirely due to the heater wire getting hot and how much of this glow you can see depends on the position of the heater wire in the tube, thickness and colour of the glass etc, ie. the physical construction of the tube, and has nothing to do with the sonic gain the tube is creating. All assuming, of course, that the amp is delivering its intended 6.3V to the heater.
  4. Hofy
    I hope you have better luck with your 6922 Gold EH than I did.  I am on my second one and both have a noticeable hum in high gain.  It is still there in low but you really have to listen for it.  I have some RCA 6BZ7 (1964 NOS) and Tung-Sol 6BK7B (1962 NOS) and Raytheon 6SN7 (1960's used) along with the stock Canada 6BZ7.  All of them are dead silent in high or low gain.
  5. DomieMic65
    And the winner is...

    By far! I didn't have any hum or other noise problems with the 6922 but for me the 6CG7 sounds better!
    Very neutral and detailed without loosing in warmth!
    Yes it runs hotter too as mentioned above.
  6. winders
    Have you tried a quality tube from the 60's?
  7. Faber65

    Glad you like it. Enjoy the music
  8. DomieMic65
    Of course not... :)
    I am as new to the "rolling" as my Vali!
  9. winders

    I've had mine 10 days now. I bought a bunch of tubes...some purchased from the U.S., where I am from, and some from Europe. They have finally started to arrive.
    I'll try to remember to post my impressions here. Most of the tube rolling discussion for this tube style happen in the "Schiit Lyr Tube Rollers" thread.
  10. DomieMic65
    For now I am done... Time for music!
    After some (months) time may be I will try something else!

    Sent from my Nexus 5X
  11. OSNPA
    This thread has been enormously helpful in learning this topic, so thank you everyone!
    And thanks to @RickB in particular for steering me in this direction to begin with.
    I just pulled the trigger on the Vali 2 and ordered a Tesla E88CC Gold Pin NOS:
    RickB likes this.
  12. TK16
    Do you have that HD700 in your avatar? Those Tesla`s are hot tubes and with that can it might give you a headache. The Tesla`s gave me a headache with HE-560`s so I sold the tubes. 
  13. OSNPA
    No, I never set the avatar, it was defaulted to that, I'll be using Beyerdynamic DT 990 Pro 250 ohm with them for the most part.
  14. TK16
    Ah looked like the HD700 on my phone.
  15. stasick
    I am new to tube rolling.  I just acquired Vali 2 and loving it!  However, I can't help but notice that some individuals utilize adapters that make use of two tubes.  Does it make a difference to use two 6922 type tubes in Vali 2?  If so, where can I get such an adapter?
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