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
- Stock Electro Harmonix 6922 [LP]
- Stock 6BZ7 tubes for MJ2
- Matsushita / National PCC88/7DJ8 [LP]
- Tungsram PCC88/7DJ8 [LP]
- Telefunken PCC88/7DJ8 [LP]
- Amperex 7308 vintage gold pin (green label JAN’s) [LP]
- Brimar KB/AD CV2492 E88CC (2 pairs) [LP]
- Brimar E88CC Gold Pin UK Valve Tubes [LP]
- Amperex Bugle-Boy 6DJ8/ECC88 D getter, date codes: Delta 8K, Delta 8L
- 1950’s SYLVANIA - D getter 6922 gold pins (VERY RARE PER AC) [LP]
- 1950s LORENZ STUTTGART - PCC88 Grey shield, 2 mica [LP]
12AU7 variants
- Mullard Blackburn ECC82 long plate square getter UK B- factory code 56/57 [LP]
- Mullard Blackburn goal post getter ECC82
- Brimar CV491/12AU7/ECC82 Long Plate Square Getter England 1958 [LP]
- Valvo 12AU7 ECC82 Germany, Hamburg Made Tubes (GfO D9E), SlantedGetters (1 pair 1 single)[LP]
- Telefunken ECC82 Smooth Plates [LP]
- Siemens ECC82 Silver Chrome Plates 12AU7 [LP]
- Amperex Holland long plate foil D getter 7316 / 12au7 1958 (Beckman label)[LP]
- Amperex Holland long plate foil D getter 7316 / 12au7 (2 singles)
- Amperex PQ 7316 ECC186 12AU7 D Getter matching 461 codes [LP]
- Amperex Philips ECC82 long plate foil D Getter 57/58 Heerlen Holland (4 pairs) (low testing)
- Brimar ECC82 1970s HALO-DISC Getter Short Plate Mazda LABEL - Thorn-AEI - England [LP]
- Tesla (NOT JJ) 1975-82 Military Long PL. ECC802S prem. 12AU7 [LP]
- RCA 12AU7 Black Plate Square getter 1957 [LP]
- RCA 12AU7A Clear Tops Conn label [LP]
- CBS Hytron JHY 5814A/12au7 Black Plate, Bent rectangular Getter a8 [LP]
- Sylvania JHS 5814WA/12AU7 Military Triple Mica Black plates code 5639B 312J [LP]
- Baldwin Raytheon 12AU7 long shiny black plates (5 pairs)
- Marconi MWT B329 ECC82 BRITISH MADE
- BRIMAR CV4034 - 1970 Military Long Plate Prem. Grade Long Life Halo Getter STC Prod. ENGLAND
- Amperex 12AU7 BugleBoy
12AT7 variants
- Valvo Hamburg Pinched Waist 6201 double post O getter 1959
- Valvo Hamburg Pinched Waist 6201 double post O getter 1959 blue label
- GEC CV6091/A2900, 1964, Black Plates, D Getter 3x mica
- GEC A2900 2x mica
- Telefunken ECC801S
- Marconi B309 12AT7 ECC81 Black Plate Ring getter (2 pairs)
- Brimar 6060/12AT7 Yellow T Tube Made in Britain E81CC 6201 (2 pairs)
- Brimar CV4033 Military Black Plate Prem. Grade Long Life ECC81/CV4024/12AT7 Halo Getter STC Prod England 1960-62
- Brimar 6060 CV4024 12AT7WA TRIPLE MICA
- Mullard Blackburn ECC81 56/57 TK1 square getter
- Mullard Mitcham ECC81 1956 square getter
- Brimar ECC81 1954 square getter
- Heerlen E180CC/7062 1957 PW
- Siemens & Halske E81CC - 1960s 3-MICA 6201 Munich W. German Prem. ECC81 12AT7
- 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
- *Telefunken 6211 [LP] *(very close to specs of a 12AU7)*
- *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
- WE396A [LP]
- Foton 6N3P 58/59’s [LP]
- Foton 6N3P 59’s
- Reflektor 6N3P 50’s era (3 pairs)
- LM Ericsson 2C51 steel pin square getter
- Marconi 5670 2C51 Tubes Red label Square/Rectangular Getters (2 pairs)
- Marconi 5670 2C51 Tubes White label Square/Rectangular Getters (1 pair 1 single)
[LP] tubes that will work in the LP