Schiit Valhalla Tube Rolling thread.

[cebuboy]

hey folks! hope all is well! Happy Friday!



Hmmm, I think it might have been one of those "design flaws" that no one really spots until it was too late into production... hehe

Talking about 2C51... how does an adapter work? are the tubes only "physically" different and then the adapters "hook up" the right "pins" only? or do they have any components to "convert" voltage/current/capacitance/resistance or whatever is needed to make them compatible?

cheers!

The pin out is different, the adapter hooks up the right pins

 

[yangian]

Is there anyone has both Jotunheim and V2 and use them to drive HD6XX or 650 can give me some comments on the two amplifiers? Thanks

 

[cebuboy]

Is there anyone has both Jotunheim and V2 and use them to drive HD6XX or 650 can give me some comments on the two amplifiers? Thanks

I have both, too long to quantify the merits and shortcomings of both. In short, if you want a colder sound with more ooomph on both ends, the Jot it is, if you want warm mids then the Valhalla 2.

 

[yangian]

I have both, too long to quantify the merits and shortcomings of both. In short, if you want a colder sound with more ooomph on both ends, the Jot it is, if you want warm mids then the Valhalla 2.

Oh, thank you so much for these information. I like OTL since it can bring out the largest soundstage of 6xx series. How about the soundstage of Jot. compared to V2? Oh, BTW, hopefully your comparison is from the fully balanced mode from Jot. Thanks!

 

[cebuboy]

Oh, thank you so much for these information. I like OTL since it can bring out the largest soundstage of 6xx series. How about the soundstage of Jot. compared to V2? Oh, BTW, hopefully your comparison is from the fully balanced mode from Jot. Thanks!

Running it from the balanced out of the jot, although not fully balanced as it is fed from a modi mb. Soundstage from the jot is just so-so, nothing to note about. With the valhalla2 you can go crazy tube rolling. In my experience, if you want it more detailed, the jot can do that, if soundstage and intimacy of vocals, the vallhalla 2 with nos tung sol 2c51 and foton 6n6p is hard to beat, better if you have the we396a.

 

[yangian]

Running it from the balanced out of the jot, although not fully balanced as it is fed from a modi mb. Soundstage from the jot is just so-so, nothing to note about. With the valhalla2 you can go crazy tube rolling. In my experience, if you want it more detailed, the jot can do that, if soundstage and intimacy of vocals, the vallhalla 2 with nos tung sol 2c51 and foton 6n6p is hard to beat, better if you have the we396a.

I see. Thank you very much!

 

[cv4109]

Sorry, your right, those are for my LYR3. I copied the wrong picture. I believe this is what you need.
This is what I use in my MJ2 and will use in Valhalla 2, currently out of stock at Tubemonger but I contacted them yesterday and should be building them and back in stock early Feb

Plug Play NOVIB Socket Saver©-1960s NOS British McMurdo Phenolic socket on Top plus Vibration Reduction Base - 9-pin B9A NOVAL -( NOT MADE IN CHINA) - NEW VERSION

https://www.tubemonger.com/NOVIB_Socket_Saver_1960s_NOS_British_McMurdo_B9A_p/novib-mcmurdo.htm

I would double check with whoever you order from, these are lifters only not adapters which I also have on order for my Valhalla, gets confusing.

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Folks apologies for the hiccups in the availability of our most popular socket saver. It is back in stock now.

https://www.tubemonger.com/NOVIB_Socket_Saver_1960s_NOS_British_McMurdo_B9A_p/novib-mcmurdo.htm

 

[FLTWS]

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Folks apologies for the hiccups in the availability of our most popular socket saver. It is back in stock now.

https://www.tubemonger.com/NOVIB_Socket_Saver_1960s_NOS_British_McMurdo_B9A_p/novib-mcmurdo.htm

Yep, mine are ordered and shipped.

 

[Ripper2860]

Received my 2. Very high quality socket savers. Highly recommended.

 

[Ripper2860]

I'm hoping you fine folks can help me. I've got a line on a pair of well matched and seemingly good 12AU7 tubes. My research seems to indicate that the 12AU7 is the lowest gain of the 12A*7 family with a gain factor of 20. Seems the 6DJ8 and 6N1Ps have a gain factor of 33 and the diff really has me nervous. Anyone have any 1st hand experience with 12AU7 on the VH2? If so -- what are your thoughts, pros/cons?

BTW -- I do have the necessary adapters.

Thanks in advance!!!

 

[yangian]

I'm hoping you fine folks can help me. I've got a line on a pair of well matched and seemingly good 12AU7 tubes. My research seems to indicate that the 12AU7 is the lowest gain of the 12A*7 family with a gain factor of 20. Seems the 6DJ8 and 6N1Ps have a gain factor of 33 and the diff really has me nervous. Anyone have any 1st hand experience with 12AU7 on the VH2? If so -- what are your thoughts, pros/cons?

BTW -- I do have the necessary adapters.

Thanks in advance!!!

I don't think 12AU7 can be used on V2. 12AU7 ..is used for both channels and 6N1P for single channel alone.

 

[Ripper2860]

Hmmm. I do have a few folks I know running the 12AT7's (not AU7) on Lyr 2 with adapter instead of the stock 6N1P/6DJ8 driver tubes with no issues. As far as I know, the only difference between 12AT7 and 12AU7 is the gain factor with AT7 having a higher gain. I assume if 12AT7 tubes will work as driver tubes on Lyr 2, that they would also work on VH2. It may be that the adapters account for the fact that it is a dual triode vs single triode and makes the needed electrical compensation. My concern is will the lower gain of AU7 cause any issues with noise on VH2 (or Lyr 2).

Thanks.

 

[tricolor]

hey!
hope all is well!

I'm hoping you fine folks can help me. I've got a line on a pair of well matched and seemingly good 12AU7 tubes. My research seems to indicate that the 12AU7 is the lowest gain of the 12A*7 family with a gain factor of 20. Seems the 6DJ8 and 6N1Ps have a gain factor of 33 and the diff really has me nervous. Anyone have any 1st hand experience with 12AU7 on the VH2? If so -- what are your thoughts, pros/cons?

BTW -- I do have the necessary adapters.

Thanks in advance!!!

hmmm, i don’t have the adapter, but i do have a valhalla 2 along with an amp that uses 12at7 and also 12ax7’s
and i actually prefer using it with a lower gain.... no noises at all... (I don’t listen to loud music, usually.. if so, kudos to headphones!

 

[Ripper2860]

Well, I have my 12AU7 adapters in hand and a couple of CIFTE 12AU7WA triple mica solid plates on their way to me. Fingers-crossed that they will blow me away!!

 

[FLTWS]

Which adapters do you using with those 12AU7's and Valhalla 2? I have several, may already have a pair of adapters for it and I do have 8 or so matched pairs of 12AU7 I use in my Rogue RH-5 including Cifte's.