Liquid Platinum Tube Rollers.
Jan 12, 2020 at 4:47 AM Post #571 of 1,686

ChaChaRealSmooth

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I'm looking for a pair of 6922 tubes that imparts a "classic tube sound" to the amp, with rolled off/subdued highs and warm sound,

Amperex Orange Globes (I think these may be slightly hard to find nowadays though).

You can also try some Tungsram 6DJ8. They're a little more subdued in the highs and have a more athletic character.
 
Jan 12, 2020 at 6:22 AM Post #572 of 1,686

Wes S

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Amperex Orange Globes (I think these may be slightly hard to find nowadays though).

You can also try some Tungsram 6DJ8. They're a little more subdued in the highs and have a more athletic character.
Out of curiosity, A frame or O getter, and 6dj8, 6922 or 7308, Amperex Orange globes?
 
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Jan 20, 2020 at 1:52 AM Post #574 of 1,686

PaganDL

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So Telefunken E88CC will work?


Hi @MisterMoJo,

E88CC is essentially the same as 6922, just different series number.

If unsure about this or any other tube, I suggest checking on the tubemusem.org

Hope you have a great day !
 
Jan 21, 2020 at 7:19 PM Post #576 of 1,686

MisterMoJo

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I bought this amp and have some tubes I am thinking about trying if I don't like the original ones after break in period. The only problem is I think that they are Amperex Orange Globes I bought for my original Lyr, but the writing is rubbed off mostly on them. I can make out Amperex, and I am using them in my Lyr right now. The writing is orange. I appeal to the tube experts out there! Any thoughts about putting these tubes in the LP?
 
Jan 21, 2020 at 10:50 PM Post #577 of 1,686

PaganDL

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I bought this amp and have some tubes I am thinking about trying if I don't like the original ones after break in period. The only problem is I think that they are Amperex Orange Globes I bought for my original Lyr, but the writing is rubbed off mostly on them. I can make out Amperex, and I am using them in my Lyr right now. The writing is orange. I appeal to the tube experts out there! Any thoughts about putting these tubes in the LP?


Hi @MisterMoJo,

I suggest checking at the radiomuseum.org, this is usually the best resource for checking tube equivalents &/or compatibility.

Hope you have a great day !
 
Jan 24, 2020 at 12:08 PM Post #580 of 1,686

cobrabucket

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Jan 24, 2020 at 1:22 PM Post #581 of 1,686

cobrabucket

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Are these any different than other Sylvania 6922? I'm certainly no tube expert. I bought these at the recommendation of a fellow head fier.
 
Mar 3, 2020 at 10:06 AM Post #582 of 1,686

WhiskeyJacks

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@sahmen

Here is a partial list of tubes that I use in my LP (w/o issue for me)

12AU7 variants

  1. Mullard Blackburn ECC82 long plate square getter UK B- factory code
  2. Mullard Blackburn goal post getter ECC82
  3. Brimar CV491/12AU7/ECC82 Long Plate Square Getter England 1958
  4. Valvo 12AU7 ECC82 Germany, Hamburg Made Tubes (GfO D9E), SlantedGetters
  5. Telefunken ECC82 Smooth Plates
  6. Siemens ECC82 Silver Chrome Plates 12AU7 [LP]
  7. Amperex Holland long plate foil D getter 7316 / 12au7 1958 (Beckman label)
  8. Amperex Holland long plate foil D getter 7316 / 12au7 (2 singles)
  9. Amperex PQ 7316 ECC186 12AU7 D Getter matching 461 codes
  10. Brimar ECC82 1970s HALO-DISC Getter Short Plate Mazda LABEL - Thorn-AEI - England
  11. Tesla (NOT JJ) 1975-82 Military Long PL. ECC802S prem. 12AU7
  12. RCA 12AU7 Black Plate Square getter 1957
  13. RCA 12AU7A Clear Tops Conn label
  14. CBS Hytron JHY 5814A/12au7 Black Plate, Bent rectangular Getter a8
  15. Sylvania JHS 5814WA/12AU7 Military Triple Mica Black plates code 5639B 312J
  16. Baldwin Raytheon 12AU7 long shiny black plates (6 pairs)
  17. Marconi MWT B329 ECC82 BRITISH MADE

All of the above are 12AU7 / variants that the Tubemonger adapters will work with in you LP

It depends on what type of sound signature you like but the Mullard Blackburn ECC82 long plate square getter UK B- factory code are phenomenal tubes however can be expensive. To help find the sound signature you like I would recommend trying:

1. Brimar ECC82 1970s HALO-DISC Getter Short Plate Mazda LABEL - Thorn-AEI - England
From Tubemonger as the are really good tubes for a reasonable price at $80 for a pair ($40 each tube)
https://www.tubemonger.com/MINT_NOS_BRIMAR_ECC82_12AU7_1970s_HALO_DISC_GT_p/1236.htm

And for a different sound signature try these

2. Tesla (NOT JJ) 1975-82 Military Long PL. ECC802S prem. 12AU7
https://www.tubemonger.com/Tesla_NOT_JJ_MINT_NOS_1975_82_ECC802S_Tall_PLCZ_p/1012.htm

Both of these tube are really good! As I have both and really like both for different reasons!

Hope this helps!

Hi I am newer to tube rolling, as in I have had a few tube amps in the past a couple hubrids and such as the alo pan am, little dot, Frontier, but I have never needed to or was open to trying out socket savers or adapters. I am going to be receiving the Liquid platinum in a couple days, and my headphone is the Hifiman Arya. I was wondering what is this warning about using the adapter with the 12axx variants with the 6922 socket? Also is there better tubes(at least in your experience) in that 12axx variant's ? for less money because I feel to get a good tube pairing with the 6922 such as Mullards(which I always liked with my pan am) I need to spend 200$. Sorry if this is a lot of questions Like I said I am interest in getting adapter eventually. I am thinking for my first tubes with the LP to get something Amperex orange globe, siemens, sylvania JAN( green print), and have you tried SERVICE MASTER IEC 6DJ8 ECC88 GERMANY it says IEC Mullards on it's boxes.
 
Mar 3, 2020 at 3:22 PM Post #583 of 1,686

WhiskeyJacks

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I bought this amp and have some tubes I am thinking about trying if I don't like the original ones after break in period. The only problem is I think that they are Amperex Orange Globes I bought for my original Lyr, but the writing is rubbed off mostly on them. I can make out Amperex, and I am using them in my Lyr right now. The writing is orange. I appeal to the tube experts out there! Any thoughts about putting these tubes in the LP?
From what I read and have seen and have talked about with a tube seller, if it is the so type ( which I believe shouldnt be a problem) and if you cannot find out if there Amperex 6922/ECC88 Orange Globes than perhaps invest in a socket saver and try them out in the LP. Amperex Orange Globes are suppose to be good tubes.
 
Mar 3, 2020 at 3:47 PM Post #584 of 1,686

TK16

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Hi I am newer to tube rolling, as in I have had a few tube amps in the past a couple hubrids and such as the alo pan am, little dot, Frontier, but I have never needed to or was open to trying out socket savers or adapters. I am going to be receiving the Liquid platinum in a couple days, and my headphone is the Hifiman Arya. I was wondering what is this warning about using the adapter with the 12axx variants with the 6922 socket? Also is there better tubes(at least in your experience) in that 12axx variant's ? for less money because I feel to get a good tube pairing with the 6922 such as Mullards(which I always liked with my pan am) I need to spend 200$. Sorry if this is a lot of questions Like I said I am interest in getting adapter eventually. I am thinking for my first tubes with the LP to get something Amperex orange globe, siemens, sylvania JAN( green print), and have you tried SERVICE MASTER IEC 6DJ8 ECC88 GERMANY it says IEC Mullards on it's boxes.
I have been using adapter tubes for years. For the LP I have been using a combination of PCC88 tubes that are not officially supported, ECC88, 6922, CCa, E188CC. These 4 are supported. Unsupported I have used for years are Western Electric 396 with adapters as well as 6N3P Reflektor and Foton both 50's tubes. These are not officially supported but have a high price/performance ratio. These tubes have a bit higher noise complaints in my experience with these 3 tubes I just mentioned in the LP. My favorite variant is the 12AU7, ECC82/7316 family that is not supported in the LP and requires an adapter. All the adapter tubes require a use of a pair of socket savers and a pair of the appropriate adapters. I have a top 17? I think list of my all time favorites. For the LP you can scratch off any ECC81, 12AT7, 6CC41, 6201 and GEC A2900. They are not officially recommended or unofficially recommended tubes for the LP.
 
Mar 3, 2020 at 7:06 PM Post #585 of 1,686

jb77

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Hi I am newer to tube rolling, as in I have had a few tube amps in the past a couple hubrids and such as the alo pan am, little dot, Frontier, but I have never needed to or was open to trying out socket savers or adapters. I am going to be receiving the Liquid platinum in a couple days, and my headphone is the Hifiman Arya. I was wondering what is this warning about using the adapter with the 12axx variants with the 6922 socket? Also is there better tubes(at least in your experience) in that 12axx variant's ? for less money because I feel to get a good tube pairing with the 6922 such as Mullards(which I always liked with my pan am) I need to spend 200$. Sorry if this is a lot of questions Like I said I am interest in getting adapter eventually. I am thinking for my first tubes with the LP to get something Amperex orange globe, siemens, sylvania JAN( green print), and have you tried SERVICE MASTER IEC 6DJ8 ECC88 GERMANY it says IEC Mullards on it's boxes.


Hi @WhiskeyJacks,

Welcome to the tube rolling club!

The Arya are great headphones, I currently have the Ananda’s and really enjoy them.

For the “warning” of using adapter tubes. Anytime you use a tube that has different operating parameters from what the amp was designed for you run the risk of having the amp fail prematurely. This is not to say it’s a guarantee the amp will fail but a “slight” possibility. I have been running adapter tubes in my LP from the beginning with out issue and know of several other that do the same with out issue.

For My recommendations I would pick up a pair of socket savers first from Tubemonger these specifically https://www.tubemonger.com/NOVIB_Socket_Saver_1960s_NOS_British_McMurdo_B9A_p/novib-mcmurdo.htm
Though it looks like he just sold through, he should have more back in soon.

The reason for the socket savers especially for the Liquid Platinum, is the Liquid Platinum has an absolute “death grip” on the tubes, when I first received my Liquid Platinum (before I had Socket Savers) I installed the stock tubes listened and decided I wanted to tube roll. In the process of removing the stock tubes, I seriously thought I was going to break the Liquid Platinum. As the “death grip” is that strong, ever since then I use Socket Savers.

Recommendations on tubes is actually a very easy one for me now. I would get a pair of these tubes once he gets more in (2-3 weeks)
https://www.tubemonger.com/Mullard_CV3986_6021_1975_Mitcham_E88CC_SUB_NOS_p/ex-6021m.htm
I was the beta tester for these tubes and they are easily my favorite tube of all my tubes not just the ones I use in my Liquid Platinum. I also have the Schiit Mjolnir 2 hybrid tube amp.

I’ll post my impressions of the tube here, in the mean time here is a link to my review
https://www.head-fi.org/threads/schiit-lyr-tube-rollers.673709/post-15490804

Hope this information helps!

Also so you have as a reference point I’ll post all of my tubes below

Tube list:

6922 variants

  1. Stock Electro Harmonix 6922 [LP]
  2. Stock 6BZ7 tubes for MJ2
  3. Matsushita / National PCC88/7DJ8 [LP]
  4. Tungsram PCC88/7DJ8 [LP]
  5. Telefunken PCC88/7DJ8 [LP]
  6. Amperex 7308 vintage gold pin (green label JAN’s) [LP]
  7. Brimar KB/AD CV2492 E88CC (2 pairs) [LP]
  8. Brimar E88CC Gold Pin UK Valve Tubes [LP]
  9. Amperex Bugle-Boy 6DJ8/ECC88 D getter, date codes: Delta 8K, Delta 8L
  10. 1950’s SYLVANIA - D getter 6922 gold pins (VERY RARE PER AC) [LP]
  11. 1950s LORENZ STUTTGART - PCC88 Grey shield, 2 mica [LP]


12AU7 variants

  1. Mullard Blackburn ECC82 long plate square getter UK B- factory code 56/57 [LP]
  2. Mullard Blackburn goal post getter ECC82
  3. Brimar CV491/12AU7/ECC82 Long Plate Square Getter England 1958 [LP]
  4. Valvo 12AU7 ECC82 Germany, Hamburg Made Tubes (GfO D9E), SlantedGetters (1 pair 1 single)[LP]
  5. Telefunken ECC82 Smooth Plates [LP]
  6. Siemens ECC82 Silver Chrome Plates 12AU7 [LP]
  7. Amperex Holland long plate foil D getter 7316 / 12au7 1958 (Beckman label)[LP]
  8. Amperex Holland long plate foil D getter 7316 / 12au7 (2 singles)
  9. Amperex PQ 7316 ECC186 12AU7 D Getter matching 461 codes [LP]
  10. Amperex Philips ECC82 long plate foil D Getter 57/58 Heerlen Holland (4 pairs) (low testing)
  11. Brimar ECC82 1970s HALO-DISC Getter Short Plate Mazda LABEL - Thorn-AEI - England [LP]
  12. Tesla (NOT JJ) 1975-82 Military Long PL. ECC802S prem. 12AU7 [LP]
  13. RCA 12AU7 Black Plate Square getter 1957 [LP]
  14. RCA 12AU7A Clear Tops Conn label [LP]
  15. CBS Hytron JHY 5814A/12au7 Black Plate, Bent rectangular Getter a8 [LP]
  16. Sylvania JHS 5814WA/12AU7 Military Triple Mica Black plates code 5639B 312J [LP]
  17. Baldwin Raytheon 12AU7 long shiny black plates (5 pairs)
  18. Marconi MWT B329 ECC82 BRITISH MADE
  19. BRIMAR CV4034 - 1970 Military Long Plate Prem. Grade Long Life Halo Getter STC Prod. ENGLAND
  20. Amperex 12AU7 BugleBoy
12AT7 variants

  1. Valvo Hamburg Pinched Waist 6201 double post O getter 1959
  2. Valvo Hamburg Pinched Waist 6201 double post O getter 1959 blue label
  3. GEC CV6091/A2900, 1964, Black Plates, D Getter 3x mica
  4. GEC A2900 2x mica
  5. Telefunken ECC801S
  6. Marconi B309 12AT7 ECC81 Black Plate Ring getter (2 pairs)
  7. Brimar 6060/12AT7 Yellow T Tube Made in Britain E81CC 6201 (2 pairs)
  8. Brimar CV4033 Military Black Plate Prem. Grade Long Life ECC81/CV4024/12AT7 Halo Getter STC Prod England 1960-62
  9. Brimar 6060 CV4024 12AT7WA TRIPLE MICA
  10. Mullard Blackburn ECC81 56/57 TK1 square getter
  11. Mullard Mitcham ECC81 1956 square getter
  12. Brimar ECC81 1954 square getter
  13. Heerlen E180CC/7062 1957 PW
  14. Siemens & Halske E81CC - 1960s 3-MICA 6201 Munich W. German Prem. ECC81 12AT7
  15. Valvo 1967 E81CC 6201 12AT7WA Gold Pin ADZAM SQ SPECIAL QUALITY Label - Hamburg Germany

12AX7 variants

1. RFT ECC83/12AX7
2.Tungsram ECC83 12AX7 - MINT NOS NIB RARE Sept 1962 Welded Plate Tubes - Hungary


Other variants
  1. *Telefunken 6211 [LP] *(very close to specs of a 12AU7)*
  2. *TESLA 6CC41 (6N2P ~ECC83) 1958 Silver Plate lk. Mazda/Cifte,D Getter* *(6922 pin layout, however specs close to that of a 12AX7)*


Sub-Mini variants

1. Mullard CV3986/6021[LP] ***(favorite tube)***

WE396A/6N3P/2C51 etc. variants
  1. WE396A [LP]
  2. Foton 6N3P 58/59’s [LP]
  3. Foton 6N3P 59’s
  4. Reflektor 6N3P 50’s era (3 pairs)
  5. LM Ericsson 2C51 steel pin square getter
  6. Marconi 5670 2C51 Tubes Red label Square/Rectangular Getters (2 pairs)
  7. Marconi 5670 2C51 Tubes White label Square/Rectangular Getters (1 pair 1 single)

[LP] tubes that will work in the LP
 

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