[KoshNaranek]

Ha, there you go. Sorry, had no idea the question was referring to a coke-bottle octal. Since question was about the Valhalla 2, just assumed the Russian noval that some of us have used.
Thanks for clarification. Yes, on the heater, 2.4 A for this octal.
If any do come across the Russian noval of the sixties, it is compatible with the VALH2.

Here's a datasheet: http://russiantubes.com/prop.php?t=12&p=202

Actually, I had no idea that this tube existed. The original question may have been about the nine pin tube.

Since I am old, I assumed it was about the octal power tube.

 

[yangian]

6N5P has heater current of 600mA, same as 6N1P. I would not use it as an output tube, it has half the output power of the 6N6P, 2.2W vs 4.8W, but as an input tube, replacement for 6N1P, yes, it's fine. No adapter required. I've used it in the Valhalla2 numerous times. Good tube, not great tube, depends what you're comparing it to.

Sorry, did you mean 6n5p can replace the 6n1p?! But the 6n5p is power tube and 6n1p is signal tube.

 

[Mike Thompson]

I hope this hasn't been asked before. Wondering if anyone is familiar with the Novosibirsk 6N6P tube and is it an improvement over the stock tube?

http://www.thetubestore.com/Tubes/Russian-Tubes/Russian-6N6p-6H6pi

Thanks.

 

[KoshNaranek]

I hope this hasn't been asked before. Wondering if anyone is familiar with the Novosibirsk 6N6P tube and is it an improvement over the stock tube?

http://www.thetubestore.com/Tubes/Russian-Tubes/Russian-6N6p-6H6pi

Thanks.

My original Tubes are Novosibirsk. They can be identified by a Pentagon symbol screened onto the tube. I am not even sure if anyone else even made the 6N6P

 

[rnros]

FOTON also made the 6N6P, I was able to find '65s and '66s, it is more expensive, IRC ~$25.
FOTON logo is a rhombus, not to be confused with the OTK rhombus. There have been eBay sellers promoting 6N6Ps with the pentagon logo as FOTON.

This is what the FOTON version looks like:
http://www.ebay.com/itm/NEW-RAREST-...055141?hash=item2a6ec55f25:g:RdYAAOSwMtxXtJQv

Remember that the 6N6P-I has a higher heater current than the 6N6P, so double check the designation. The 6N6P-I may be within the capabilities Valhalla2 but you would have chech with Schiit.

 

[rnros]

Sorry, did you mean 6n5p can replace the 6n1p?! But the 6n5p is power tube and 6n1p is signal tube.

We now know that the 6N5P designation is used for both an octal power tube and a noval signal tube.
The 6N5P noval signal tube has specs similar to the 6N1P and has been used in the Valhalla2.

 

[yangian]

We now know that the 6N5P designation is used for both an octal power tube and a noval signal tube.
The 6N5P noval signal tube has specs similar to the 6N1P and has been used in the Valhalla2.

That's really cool! Do you know what kind of adapter to use? An adapter is necessary. At least size is different.

 

[rnros]

That's really cool! Do you know what kind of adapter to use? An adapter is necessary. At least size is different.

Still a bit of confusion on these two tubes.

The 6N5P that has been used in the Valhalla2 is the Noval signal tube, same size and pinout as 6N1P. No adapter required.
Here is the the 6N5P I have used:




Late '50s to mid '60s triple mica box plate anode. This is a NEVZ tube.
Again this is a good tube, a very good tube, depends on what you want or what you compare it to. I like it enough to have bought a few pairs. Reasonable price: ~$25 per tube.

Two eBay links (I have purchased from the first link):

http://www.ebay.com/itm/RARE-TESTED...id=100005&rk=2&rkt=6&mehot=lo&sd=171584577628

http://www.ebay.com/itm/Audio-Tube-...495040?hash=item3ae6d002c0:g:cj0AAOSwuLZY51vt

 

[yangian]

Still a bit of confusion on these two tubes.

The 6N5P that has been used in the Valhalla2 is the Noval signal tube, same size and pinout as 6N1P. No adapter required.
Here is the the 6N5P I have used:




Late '50s to mid '60s triple mica box plate anode. This is a NEVZ tube.
Again this is a good tube, a very good tube, depends on what you want or what you compare it to. I like it enough to have bought a few pairs. Reasonable price: ~$25 per tube.

Two eBay links (I have purchased from the first link):

http://www.ebay.com/itm/RARE-TESTED-PAIR-6N5P-BLACK-BOXED-ANODE-3xMICA-CCa-6N1P-E88CC-Tube-date-1961/171836351712?_trksid=p2047675.c100005.m1851&_trkparms=aid=222007&algo=SIM.MBE&ao=2&asc=41376&meid=87e22c0c1ebf42ceb306059b7f374884&pid=100005&rk=2&rkt=6&mehot=lo&sd=171584577628

http://www.ebay.com/itm/Audio-Tube-...495040?hash=item3ae6d002c0:g:cj0AAOSwuLZY51vt

Oh, no. I mean this:
http://www.ebay.com/itm/1x-NOS-Shug...727370?hash=item440392c88a:g:zOsAAOSw5cRZGQvF
It's actually equivalent to 6080, 6AS7 etc.

Sorry for the confusion! That's really confusing

 

[rnros]

Your question concerning that tube was already answered by KoshKaranek.

 

[yangian]

Your question concerning that tube was already answered by KoshKaranek.

That's why I feel very confused at first. Anyway, now it's clear.

 

[NBrock]

Good evening,

Does anyone have opinions on Amperex 6922 from 1951 or New Genalex Gold Lion with gold pins? I am looking for some new tubes to try. I am also open to suggestions.
I currently have a matched pair of the OTK 6n23p/E88CC from the early 80s.
My setup goes PC>Bifrost 4490>Valhalla 2 with the OTK 6n23p> Beyerdynamic DT 1990 Pro
My music types are instrumental (piano and violin), classical, classic rock, rock, metal, edm, trap...

Thanks!

 

[ZenGentleman]

Good evening,

Does anyone have opinions on Amperex 6922 from 1951 or New Genalex Gold Lion with gold pins? I am looking for some new tubes to try. I am also open to suggestions.
I currently have a matched pair of the OTK 6n23p/E88CC from the early 80s.
My setup goes PC>Bifrost 4490>Valhalla 2 with the OTK 6n23p> Beyerdynamic DT 1990 Pro
My music types are instrumental (piano and violin), classical, classic rock, rock, metal, edm, trap...

Thanks!

I have the Valhalla 2/Bifrost Multibit combo w/Senn HD 700. I’ve rolled a matched pair of late 1950s MELZ 6N1P tubes I got from a seller on Etsy for $50 and a matched pair of JJ ECC88 Gold Pins from The Tube Store for around $50. I thought both pairs were a good upgrade from the stock tubes. At this point, I’m preferring the JJ Gold pins between the two. However, the biggest improvement in sound was when I added the $99 Schiit Audio Wyrd USB Decrapifier into the mix. That said, Schiit just announced a USB GEN5 upgrade for all their DACs which, among other things, eliminates the need for the Wyrd, as the power to the DAC chip no longer comes from the USB output from the computer and there is new shielding for the power. To upgrade the DAC is only $150. I’ve already paid for my upgrade and I’m #22 in the queue for upgrade.

 

[KoshNaranek]

Good evening,

Does anyone have opinions on Amperex 6922 from 1951 or New Genalex Gold Lion with gold pins? I am looking for some new tubes to try. I am also open to suggestions.
I currently have a matched pair of the OTK 6n23p/E88CC from the early 80s.
My setup goes PC>Bifrost 4490>Valhalla 2 with the OTK 6n23p> Beyerdynamic DT 1990 Pro
My music types are instrumental (piano and violin), classical, classic rock, rock, metal, edm, trap...

Thanks!

I second the above regarding the JJ Gold pins. They are my favorite tube in the Valhalla 2. I tried the Gold lions in the Valhalla and found the frequency response to be bit uneven. This manifests itself as a change of pacing in complex passages, making them dissonant. The gold lions did much better in the Lyr2. I have no experience with vintage Amperex. The Valhalla 2 is a fussy amp when it comes to the input tubes, but it is sublime when setup to your satisfaction.

My Valhalla setup: HiFiBerry digi via coax to Bifrost Multibit to Valhalla 2 to HD800

 

[NBrock]

Thanks so much for the responses. I'll pick up some of the JJ ECC88 Gold pins since they aren't too much money and give them a go.

Thanks ZenGentleman for the info on the DAC upgrade.

I do have one more question since you both use the Multibit Bifrost. Is it a big step up from the regular 4490 Bifrost?