Schiit Valhalla Tube Rolling thread.

[lekoross]

Does anyone know if the Valhalla 2 can take ecc189 tubes?

 

[feilb]

They look very comparable on paper. Pinout is the same, heater voltage is the same. Heater current is the same. I'd give it a shot if you have one. Not sure the differences other than basic stats.

 

[lekoross]

Checked with Nick at Schiit. Said they will technically work but won't sound as good because of the difference in mu.

 

[Rossliew]

Would someone be willing to try using 6SN7s as power tubes (with the appropriate adapter of course)? Schiit tech has confirmed this is OK with the V2 but may not be using the 6SN7 to their full potential.

 

[Rem0o]

  Would someone be willing to try using 6SN7s as power tubes (with the appropriate adapter of course)? Schiit tech has confirmed this is OK with the V2 but may not be using the 6SN7 to their full potential.

If you can get them to fit in there... Would look like a frankenstein amp with those on socket extenders + adapters!

 

 

[Rossliew]

  If you can get them to fit in there... Would look like a frankenstein amp with those on socket extenders + adapters!

Yeah, you're right. Might need some slim socket savers to support the adapters. Much easier with the Little Dot amps though. But it helps open up a whole new playground with the 6SN7 tubes

 

[Puma Cat]

So, after quite a bit of extended listening and comparisons, I've settled on Amperex 6922s (PQ orange label) as my tube of choice for my Valhalla 2. I also tried Amperex 7308 JAN white label and Amperex 7308 PQ orange label, but ended up preferring the 6922s overall. 
 
At some point in time, I may swap in my Ediswan 6922s, but I'm good to go at this point, as far as tube rolling goes. 

 

[kirayamato]

  what would be the best tubes to roll for hd 800  i have the valhalla 2 I listen to pop music usually the latest songs i do listen to alot of old songs but would prefer it to be the best on pop music and i prefer soundstage and wouldn't like it lowered by another tube for something else so basically if there is a clear cut upgrade thats what i would want

bump any help?

 

[lekoross]

Hey, you might want to check out the Lyr Tube Rolling thread. Much more information there and a lot of people have the 800's. I have the 650's. I have some tubes for sale, including rb2013's '74 Holy Grails. i don't believe you'll find a better tube for the money -except the '75's, but he doesn't have them now and who knows when he'll get them? I know he uses the HD800.

 

[feilb]

The siemens ecc85 was my favorite with the hd800. The Tele e88cc were fantastically detailed but the ecc85 had so much better low end. I've got a pair that I'm not using of the siemens if you are interested.

 

[rb2013]

Hi Guys - I'm pretty active over on the Lyr tube rolling thread -and have a large collection of 6n1p's, 6n5p's and 6n23p's.
 
I am thinking of getting a Val or Val 2 and doing  a big mod project on it.  Basically using a larger case and upgraded all the caps, especially replacing those Wima caps (little red boxes).
 
Has anyone tried the E99CC as a driver tube?  It looks like they are compatible.
 
I have 6n1p 72's(Novo), '74's (Voskhod), '75's (Voskhod), and the very rare triple mica '66 black anode Novo's available.  Also some of the '70s Voskhod Rocket 6n23p's.  These are all matched and test - PM if interested.
 
I'll be checking the classifieds for a used Val for purchase or trade.
 
Cheers!
Bob

 

[feilb]

Bob,
 
I've got a pair of Amperex PQ E182CCs. Problem is that the pinout is different. I've got some socket savers i intended to modify to match the pinout.
 
I dumped my Val 2 because i thought I was going to go ortho. Ended up not preferring LCD3s to HD800s, but now I've got a Burson soloist, which is nice in its own right. I don't have the cash to pick up a V2 right now.
 
Let me know if you ever get ahold of one. I'd be happy to modify a set of socket savers and send you my tubes for what i paid for them ($45)

 

[rb2013]

  Bob,
 
I've got a pair of Amperex PQ E182CCs. Problem is that the pinout is different. I've got some socket savers i intended to modify to match the pinout.
 
I dumped my Val 2 because i thought I was going to go ortho. Ended up not preferring LCD3s to HD800s, but now I've got a Burson soloist, which is nice in its own right. I don't have the cash to pick up a V2 right now.
 
Let me know if you ever get ahold of one. I'd be happy to modify a set of socket savers and send you my tubes for what i paid for them ($45)

Thanks for the reply.  So I guess the E99CC I believe has different pinouts to the E182CC (my APL DAC uses the ECC99's - and Alex gave me the pinout mods to use the E182CC).  I'll have to check to see if the 6N6P is the same as the ECC99.  I was able to swap in 12BH7's for the 99's.  I will check on that tube as well.
 
So you had the HD800 and the LCD3's and liked the HD800's better?  If you kept the HD800's try the Moon Black Dragon V2 cable - it made all the difference for me.  Cured the sibilance and filled out and deepened the Bass.
 
I decided to go for the Val2 - as to it greater grunt. 
 
I will take you up on the modded socket savers and E182CC's!  Were should I send the money?  I have some very nice Amperex 7119 equivalents.
 
Cheers!

 

[rb2013]

Oh found this:
 
http://www.diyaudio.com/forums/tubes-valves/185900-6n6p-ecc99-e182cc.html

 hey're all closely related, but not identical.

6N6P is a Russian-made twin triode (medium mu, 9 pin mini). Pin-out is same as ECC88, 6DJ8 and kin. 6.3V filament on pins 4 and 5.

ECC99 is a similar European tube, but slightly higher mu, slightly higher anode resistance, a little different electrically from 6N6P. Pin-out is same as 6N6P, 6.3 volt filament.

E182CC = 7119, which is similar to the ECC99 but with different 5687-style pin-out. Also, E182CC has a 12.6V filament that can also be wired to use 6.3V.

5687 is an American type, very similar to 6N6P electrically, but with a different pin-out (same pin-out as E182CC or 7119, also 12.6V/6.3V filament).

There are two basic pin-out configurations -- 5687 and E182CC have one type (12.6V/6.3V filament), ECC99 and 6N6P have more commonly encountered type (6.3V filament only).

 

[feilb]

Bob,
 
I'm about 99% sure that ECC99 does not have the same pinout as 6N6P. ECC99 and E182CC both have the dual voltage heater. The 6N6P only has 6.3V heater. 
 
Thus the ECC99 and E182CC have 3 heater pins, one for either end and a center tap. If wired in parallel, they are 6.3C, if series then 12. Please do not just plug in ECC99 to your Val!
 
The 6N6P tubes use that extra pin for a grounded screen between the two triodes.