Vali 2 tube rolling

Discussion in 'Headphone Amps (full-size)' started by capt369, Jan 8, 2016.
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  1. HOWIE13
    You may be able to use the 12AU7 with an adapter but the EL84 is a pentode with a heater current of 750mA and that won't be suitable.
     
    Last edited: Oct 29, 2017
  2. KoshNaranek
    Go to tubedepot.com and look around. If you want warm, try the 6cg7. If that is too warm, try the 6922 or ecc804(they are inexpensive)
     
  3. KoshNaranek
    The 12au7 is a twelve volt tube. You would need an adapter and a 12 volt power supply for the heater
     
  4. HOWIE13
    Last edited: Oct 29, 2017
    SyDroX likes this.
  5. KoshNaranek
  6. HOWIE13
    Totally agree with you about ECC804. It's a very good, under-appreciated tube.
     
    SyDroX and KoshNaranek like this.
  7. SyDroX
    Yeah it's a price for a lot of 3, so considering the fact one EH6922 costs about the same on amazon (plus shipping since I'm not from the states) I thought this might be a good deal. Even if I won't use the other two. I've tried searching on tubedepot. I managed to find the ECC804. However, I got multiple results for the 6922, some of which were rather expensive. Could you link me the exact one I should be looking for?
     
  8. RickB
    https://www.tubedepot.com/products?utf8=✓&keywords=6922+eh
     
    SyDroX likes this.
  9. Brad Riegler
    Tube Depot has some deals on some interesting tubes. https://tubedepot.com/t/tubedepot-sale

    Correct me if I'm wrong but won't a Western Electric 417A work with an adapter? I think I read somewhere someone really liked it in the Vali 2
     
  10. Vas19
    Save yourself some time and buy a 2C51/5670 adapter and start rolling those tubes. Vali 2 can hold its own with much more expensive amps. Don't underestimate it based on its price.
     
    Guidostrunk likes this.
  11. Yayoubetcha
    Try one of these - http://www.tubemonger.com/mobile/Product.aspx?id=1229

    Brand Spanking New, MINT NOS NIB 1970 Amperex/Philips PCC88 7DJ8 A-Frame Dimple Disc Getter Tubes with Dario Miniwatt Label. Identical DJH 40J2 Heerlen Holland Production Date Codes (first letter 4xxxx, 4=delta or left triangle for Heerlen Plant). Boxes are a bit fragile but the tubes are pristine. Very musical and desirable tube in the PCC88 family.

    I have one and they are awesome. 50 bucks but you won't have to buy an adapter or another tube. I have half a dozen 20 dollar tubes I'll sell for 50 bucks so I can buy another, lol.
     
    Last edited: Nov 13, 2017
  12. musicfan145
    I finally slogged my way through this thread, and I made quite a few notes along the way. I feel like I have an idea of which tubes are popular and generally highly regarded, but I’m left wondering a few things:

    Am I right in thinking that the higher-end Telefunken tubes are best for jazz and classical, while the higher end Mullard tubes are best for rock?

    Is there any one “no compromise” tube that excels at rock midrange/bass but also has the highs to expand the soundstage of my closed headphones without being analytical or fatiguing?

    People clearly love the Western Electric 396a, but how does it compare to the better brands/grades of NOS 6922-type tubes in terms of sound signature and sound quality?

    The WE396a also seems to be hard to find from any place that will sell a NOS single tube with any assurance of quality. At what price point is the 396a no longer worth purchasing, relative to the other options?
     
    Last edited: Nov 25, 2017
  13. Jacobal
    Has anyone tried $200-300+ upgrade tubes with this yet?
     
  14. winders
    I used to hoard Siemens CCa and Telefunken CCa tube pairs for my Mjolnir 2 because they were the best sounding tubes I had ever heard. Then I tried the Western Electric "JW" 2C51 tubes (5670/396A equivalent) and was blown away. They had all the detail and clarity of the CCa tubes but had warmth and incredible soundstage as well. I sold all the pairs of CCa tubes and now I don't own a single 6922 tube. That's not quite true. I do have the 6922 tubes that came with my Mjolnir 2 and Vali 2.

    The Western Electric "JW" 2C51 and 396A tubes are better than any 6922 tube I have ever heard and they cost quite a bit less. I spend no more than $100 per pair and often quite a bit less. I will never buy a high end 6922 tube again.
     
    musicfan145 likes this.
  15. IPA-60-IBU
    6dj8 family of tubes is very popular, therefore good tubes are way overpriced these days. If you know how to use a soldering iron, give subminiature tubes a chance. I'm currently using a soviet mini dual triode, 6N16G-VIR, a special purpose, heavier version of 6,16b. All aspects of sound are better in comparison to the 6dj8 tubes I have tried, for a fraction of the price.
     
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