[Frihed89]

Blueshound, this is a Single-ended design with an output transformer and the output tubes, 6SN7, are paralelled to increase the power out. The output tubes will have the biggest impact. The driver tube is the 12AX7, and I suspect it is in an SRP or casacde ciruit of some kind, so it should also have some sonic effect, but not nearly as great as the output tubes. I can't say much more.

 

[Blueshound24]

Blueshound, this is a Single-ended design with an output transformer and the output tubes, 6SN7, are paralelled to increase the power out. The output tubes will have the biggest impact. The driver tube is the 12AX7, and I suspect it is in an SRP or casacde ciruit of some kind, so it should also have some sonic effect, but not nearly as great as the output tubes. I can't say much more.

Thank you for all that, (not that I understand much of it , I was always curious which tubes I might be better off improving.

So, any recommendations for an upgraded pair of 6SN7 to replace my CBS JAN-CHY-5692 brown base?

 

[attmci]

Thank you for all that, (not that I understand much of it , I was always curious which tubes I might be better off improving.

So, any recommendations for an upgraded pair of 6SN7 to replace my CBS JAN-CHY-5692 brown base?

CBS JAN-CHY-5692 are nice tubes.

Have you consult the manufacture for recommendations?

I do believe the driver tube, your 12AX7, also plays a important role in the amp (a SET?).

 

[Blueshound24]

CBS JAN-CHY-5692 are nice tubes.

Have you consult the manufacture for recommendations?

I do believe the driver tube, your 12AX7, also plays a important role in the amp (a SET?).

It's actually 6sn7 x 2. It came with 2 - David Shaw CV181, but right now I’m using 2 - CBS JAN-CHY-5692 brown base, (6sn7), and one Amperex 12ax7 made in Holland (Hammond). I have emailed them and if I remember right any 6sn7 should work.

 

[Blueshound24]

CBS JAN-CHY-5692 are nice tubes.

Have you consult the manufacture for recommendations?

I do believe the driver tube, your 12AX7, also plays a important role in the amp (a SET?).

I have dealt with Brent Jesse in the past and emailed him, he concurred the Hytron CBS JAN-CHY-5692 brown base is one of the best NOS tubes of that type, but he did say the 12AX7 I have could be improved on. I can appreciate his honesty when he says stay with what you have because it's a good tube.

Thanks for your request. It sounds like you have the 6SN7 tubes covered very nicely. The Hytron 5692 is one of the best NOS tubes you can buy of that type!

The 12AX7 is a tube with much higher gain than the 6SN7. I would say you can improve there. If you like the fairly sweet and airy sound of the Amperex, you may wish to upgrade to one of the following:

12AX7 Amperex Electronics For Medicine, medical grade 1960s, $199.00 each

12AX7 Amperex made long plate D getter, 1950s, $190.00 each

If you want a more detailed, accurate, and linear sound with tighter bass, the Telefunken smooth plate is suggested. These are $115.00 each. We also have the very rare medical grade “Selected Tube” Telefunken 12AX7 made for Boonton, L&N, or Grass Valley Medical Equipment, at $270.00 each.

So, I guess I may be shopping for a better 12AX7 (looks kinda spendy though...)

 

[thekorsen]

Anyone try the Shuguang 6SN7GT? I only found one article that mentioned them in the dark corners of the internet, otherwise they are a ghost in the 6sn7 world. Being Shuguang's cheapest 6SN7 offering I'm surprised to see so little chatter about them.

 

[Makiah S]

Anyone try the Shuguang 6SN7GT? I only found one article that mentioned them in the dark corners of the internet, otherwise they are a ghost in the 6sn7 world. Being Shuguang's cheapest 6SN7 offering I'm surprised to see so little chatter about them.

Huh no I've never even heard of them but sure enough there's folks out there selling a single with balanced triodes ect... for like $30, for what it's worth I prefer the balanced matched ect... EH 6sn7 Black label over my non balanced just what ever EH 6sn7 Gold Label...

 

[thekorsen]

Huh no I've never even heard of them but sure enough there's folks out there selling a single with balanced triodes ect... for like $30, for what it's worth I prefer the balanced matched ect... EH 6sn7 Black label over my non balanced just what ever EH 6sn7 Gold Label...

Welp, found a guy selling the model mentioned in that previously linked article for $19 shipped. Since they were made fairly recently I'm not too worried about the triodes being imbalanced. Took the plunge, will see how it compares to my Tung-Sol "mouse ears" that has some channel imbalance problems and the 6922EH I use regularly in my Vali 2.

 

[Blueshound24]

Anyone try the Shuguang 6SN7GT? I only found one article that mentioned them in the dark corners of the internet, otherwise they are a ghost in the 6sn7 world. Being Shuguang's cheapest 6SN7 offering I'm surprised to see so little chatter about them.

One opinion re: Shuguang 6SN7 here:
https://www.head-fi.org/threads/6sn7-tube-addicts.479031/page-293#post-10955703

 

[Makiah S]

One opinion re: Shuguang 6SN7 here:
https://www.head-fi.org/threads/6sn7-tube-addicts.479031/page-293#post-10955703

Holy smokes $155 for a single Psvanne, I actually heard an Elise over the weekend with a pair of Psvanne's and it was stunning so... I can't really refute how good they must sound. Any one have any thoughts on how they compare to the TOTL NOS 6sn7s? Including those crazy rare $200+ ones

Scratch that I just going to buy one and see how good it really sounds... I always like having a good spare

 

[abvolt]

Anyone try the Shuguang 6SN7GT? I only found one article that mentioned them in the dark corners of the internet, otherwise they are a ghost in the 6sn7 world. Being Shuguang's cheapest 6SN7 offering I'm surprised to see so little chatter about them.

Everything I've ever read on them is their sq is simply great but they don't live long, the two guys I talked to both said these tubes die in less than a year, that kept me from trying them..enjoy

 

[Makiah S]

Well I picked up a Psvanne MK II... it'll be here in about 2 weeks. I have a show on the 15th and it's set to be delivered on that day at the earliest! So I guess the show is where I'll hear it first lol! Here's to hoping it sounds every bit as good as ppl say. Certainly looks lovely

 

[attmci]

Let me share a couple of review articles about the history of the 6SN7GT I had read many times. Hope it won't against the Head-fi rule.

6SN7: Driver of Choice By Eric Barbour © 1999

Listening to 6SN7s By Charles Kittleson and Eric Barbour (pls ignore the ratings. )


link: https://cdn.head-fi.org/a/10064340.pdf

 

[Makiah S]

Just a quick reminder guys don't forget to clean your tube contacts every now and again, just a itty bit of this stuff goes a long way imo

https://www.ebay.com/itm/DeoxIT-D-a...319169&hash=item418887b81a:g:NFEAAOSw8lBTonep

 

[attmci]

Just a quick reminder guys don't forget to clean your tube contacts every now and again, just a itty bit of this stuff goes a long way imo

https://www.ebay.com/itm/DeoxIT-D-a...319169&hash=item418887b81a:g:NFEAAOSw8lBTonep

https://www.amazon.com/CAIG-LABORAT...=2025&creative=165953&creativeASIN=B0000YH6F8

Cheaper

Please set an alert at CCC, and wait this drop below $22. Yes, it will.