[Skylab]

Dave did you get an adapter to go from 6F8G to 6CG7 directly? Or are you using two adapters? I'd like to use some of my 6F8G's in "our" DAC but I'm concerned about stacking two adapters and a relatively big tube on a nine-pin miniature tube socket...

 

[dminches]

Glenn made me a 6F8G>6CG7 adapter so I am not stacking them. 

 

[Skylab]

Nice. I need to have some like that made.

 

[eherdian]

Hi,
 
just want to ask about this tube:
 

 
I never saw GE tube like this... 
or it is Sylvania?
 
thanks

 

[StalkerAssassin]

Hi,

just want to ask about this tube:




I never saw GE tube like this... 
or it is Sylvania?

thanks

Hi,
this tubes RAYTHEON 6SN7GT (1940') relabeled as GE.

 

[eherdian]

Hi thanks for the info StalkerAssasin,
 
I found another one...Pinnacle 6SN7GT and have no idea who's the manufacturer..
 

 
Sorry the picture is too small
 
cheers,
Erik

 

[mikek200]

I think they are an old Russian tube..many thought they were pretty good
I found this:
 
http://www.diyaudio.com/forums/tubes-valves/135902-pinnacle-tubes.html

 

[rosgr63]

Pinnacle were a rebrander.
 
They used tubes made my Mullard (ECC32 etc.) and others.
 
To be able to tell if it's made in CCCP look at the getter, the flying saucer type usually is a give away.
 
I cant tell from the photo.

 

[Autobat]

Hey guys,

I normally pick up used tubes as they are cheaper but recently grabbed some NOS RCA 6SN7 and I'm enjoying the sound so far. When one of the tubes is warming up, maybe the first 20 minutes, there is occasional static through one of the channels.

As mentions, the tube sounds fine when it's going, any ideas what it would be?

 

[eherdian]

ok then....confirmed it's Russian tubes
 
 
thanks guys..

 

[Oskari]

Quote:

ok then....confirmed it's Russian tubes

 
That Pinnacle 6SN7GT? I'd like to see a better photo.

 

[mikek200]

Quote:

Pinnacle were a rebrander.
 
They used tubes made my Mullard (ECC32 etc.) and others.
 
To be able to tell if it's made in CCCP look at the getter, the flying saucer type usually is a give away.
 
I cant tell from the photo.

 
 
Quote:

ok then....confirmed it's Russian tubes
 
 
thanks guys..

Not sure that is accurate-see above reply from Rosgr63.
 
Couldn't find a pic of the 6sn7gt,but did find these
 

 

 

 

[Xcalibur255]

That pinnacle 6sn7 looks like it has ladder plates to me. RCA would be a likely possibility, or maybe GE or Raytheon.

 

[Skylab]

That picture was kinda blurry, but those look like flat ladder plates to me, and that's not something that typically you see in the Russian 6H8C, which typically have more of a t-plate structure.

EDIT: looks like X and I agree on that

 

[Oskari]

That's what I thought I saw, too. But can't be sure based on that tiny photo.