[Lorspeaker]

some other tube-combos on the other slots might take away the noise...
 
my psvane had a low hmmm on the left channel when it was brand new...
it went off after about 50-100hours

 

[gibosi]

Yeah mine is Russian as well. It is like a radio static whirl noise. Can only be heard with no music or very quiet music. Noise does not raise up in volume when the level is increased. All my other tubes are dead silent.

Is this what is refered to as a noisy tube?

Mine are brand new. Shall I just give up on them? Or could it improve with age?

I kinda just want to give up. If they are rubbish so be it. Life is to short for crappy tubes.

 
Brand new tubes are often noisy. However they often quiet down after 20 hours or so. Don't give up on them yet....

 

[Badas]

  some other tube-combos on the other slots might take away the noise...
 
my psvane had a low hmmm on the left channel when it was brand new...
it went off after about 50-100hours

 
 

   
Brand new tubes are often noisy. However they often quiet down after 20 hours or so. Don't give up on them yet....

 
Thanks guys. I will roll them back in then and put up with the noise for a while. I have just installed tube savers so it is easy to roll tubes in and out.

 

[Lorspeaker]

Do u have an account in EBAY? 

 

[MIKELAP]

Got a question for you guys would these be 6SN7 BAD BOYS or only the Svlvania GT's can be called that . Thanks                                                                                                                                              

 

[Badas]

  Do u have an account in EBAY? 

Yes.

 

[Xcalibur255]

Technically they are not "Bad Boy" tubes MIKELAP.  A GTB type 6SN7 with that plate style is rather uncommon though, if the price is low enough they would probably be worth picking up. 

 

[MIKELAP]

  Technically they are not "Bad Boy" tubes MIKELAP.  A GTB type 6SN7 with that plate style is rather uncommon though, if the price is low enough they would probably be worth picking up. 

Would $50.00 be to much.Thanks 

 

[Badas]

Anyone no the sound signature to the NU 6SN7GT blackglass?

 

[gibosi]

  Anyone no the sound signature to the NU 6SN7GT blackglass?

 
The 6SN7 reference thread might be helpful:
 
http://www.head-fi.org/t/117677/the-reference-6sn7-thread#post_1380036

 

[punit]

  Got a question for you guys would these be 6SN7 BAD BOYS or only the Svlvania GT's can be called that . Thanks                                                                                                                                              

Xcalibur255 is correct these are not Bad Boys. Please see the 9th post on the link for Bad Boy info :
 
http://www.audiocircle.com/index.php?topic=120726.0

 

[Xcalibur255]

  Would $50.00 be to much.Thanks 

That isn't a ripoff price, but it's probably more than I would pay for them. 

 

[Stereolab42]

Are Tung-Sol 6DJ8s from WWII really worth more than twice as much as their peers?

 

[Nic Rhodes]

6SN7 TS are certainly very near the top, if not top of the pile so will carry a premium (and have done for years now), people raved about them 20 years ago when I bought mine. Re Tung-Sol 6DJ8s from WWII they are rarer than rocking horse do do

 

[Stereolab42]

  6SN7 TS are certainly very near the top, if not top of the pile so will carry a premium (and have done for years now), people raved about them 20 years ago when I bought mine. Re Tung-Sol 6DJ8s from WWII they are rarer than rocking horse do do

 
I was smoking crack, I meant the T-S 6F8Gs (VT-99), electrically equivalent to the 6SN7s (VT-231s) with adapter but significantly cheaper. However there appears to be a catch... a lot of the 6F8Gs for sale appear to be the "flat plate" versions, but it's the T-S round plates that apparently have a much better sonic reputation. Is that correct?