[Skylab]

Those Hytrons do look like the Sylvania VT99's I have...except the all the Sylvanias I've seen have a Grey coating, not black.

 

[dminches]

That's what confused me.  That black coating looks to much like the Tung Sols.

 

[rosgr63]

David the photo is saturated, look how vivid the red is.
Now if you reduce the saturation the glass is grey not black.
 
Saturated
 

 
 
Normal
 
 

 

[dminches]

Well done, Stavros!  

 

[Rob N]

A nice pair of civilian metal bases with green printing

 

[Neogeo333]

 
I didnt know the british made russian tubes.  Or vice versa?

 

[rosgr63]

During the 1st cold war CCCP made tubes for European makers labelled as necessary to avoid various issues.

 

[hodgjy]

I have a very high opinion of many NOS cold war era Russian (CCCP) tubes.  Seem to be made to very tight specs and sound very linear.  There are exceptions, of course.
 
Quote:

During the 1st cold war CCCP made tubes for European makers labelled as necessary to avoid various issues.

 

[toschek]

What would be a good variant for someone who listens to mostly Classical & Jazz, but enjoys a bit of old school dub music and would want good bass extension on those occasions?  
 
I am looking at a pair of Sylvania VT-231/6SN7-GT tubes at the moment as backups for my current RCA 6SN7-GTBs.
 
Cheers!

 

[KingStyles]

I finally am done reading through this whole thread. I have a handle now on most of the 6sn7, except for the sylvanias. We need a list of all the different ones with pictures for reference, There kind of confusing. confused_face(1):

 

[rosgr63]

Quote:

What would be a good variant for someone who listens to mostly Classical & Jazz, but enjoys a bit of old school dub music and would want good bass extension on those occasions?  
 
I am looking at a pair of Sylvania VT-231/6SN7-GT tubes at the moment as backups for my current RCA 6SN7-GTBs.
 
Cheers!

 
 
The GTB's have a strong low end.
 
I think the Sylvania 6SN7W may suit better, but a lot will depend on your system.
 
Quote:

I finally am done reading through this whole thread. I have a handle now on most of the 6sn7, except for the sylvanias. We need a list of all the different ones with pictures for reference, There kind of confusing. confused_face(1):

 
 
adhoc has done an excellent job in his Reference thread but the photos are not available anymore.
 
If he decides to put them back it will be fantastic, otherwise we'll have to create a Photo library from scratch.

 

[KingStyles]

It would be nice if we could update the reference thread by adding pictures, more tubes, and more comments. It is a great thread. Can it be in the wiki so it could be modified?

 

[KingStyles]

What is a 6n7gt and how is it different from a 6sn7?

 

[Skylab]

6N7 is a completely different tube from a 6SN7.

 

[toschek]

Quote:

 
 
The GTB's have a strong low end.
 
I think the Sylvania 6SN7W may suit better, but a lot will depend on your system.
 
 
 
adhoc has done an excellent job in his Reference thread but the photos are not available anymore.
 
If he decides to put them back it will be fantastic, otherwise we'll have to create a Photo library from scratch.

 
I picked up a pair of GE GTA grey plates for $17.00 & shipping, they test good and sound like they'll be good from the description. 
 
 

[color=rgb(0, 255, 0)][b]6SN7GT / 6SN7GTA GE 1950-1955[/b]top rated 6SN7; nice imaging and romantic, satisfying sound, very good bass andaccurate, detailed midrange[/color]

 
I also picked up another set of GTBs. I really like what they do, so why mess with (perceived) perfection.  I bought Sylvanias this time though, tubeworld.com speaks highly of them (and for $50 & shipping, I can't complain.)
 

[color=rgb(0, 255, 0)][b]6SN7GTB Sylvania "Chrome Top" 1950's[/b]1950's Chrome Top GTB and WGT are detailed, quiet, smooth, alive, musical, with good bass, a very good 6SN7[/color]