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For 6AS7G tube rollers here ..... - Page 52

post #766 of 1542
Quote:
Originally Posted by EraserXIV View Post

My understanding is the 2399 is the same as the 5998, both made by Tung-Sol. Tung-Sol also made some 5998 which are branded by IBM, but are the same as any other 5998.

 

Tung-Sol / Chatham/ The 2399 are mostly labelled Chatham. I have white and yellow labelled ones

 

 

Some are clear tops, some are like the ones shown above with the top getter


Edited by Ultrainferno - 5/16/13 at 1:47am
post #767 of 1542
Quote:
Originally Posted by mikek200 View Post

Tnx Dubstep,

 

Please correct me if I'm wrong---Is the 2399,the same as the 5998,or,the 5998a?

One is made by IBM,the other by Tung-Sol-right?

 

Yes,Nikolay from Tube maze,has some pretty good stuff,,I've bought a few from him,and he's a pleasure to deal with.

Yesterday,I picked up a Tung-Sol 12au7 black plate..,if it's half as good as the 5998,I'll be  happy.

 

Mike

 

 

yeah 2399 is the same as 5998. 5998A is way different (similar to 7236 but theres a few differences as well).  

 

I think tung sol made all the 5998's.


Edited by Dubstep Girl - 5/16/13 at 4:27am
post #768 of 1542

I know this thread already has 767 posts, but we're going in circles here.  All the answers to the last 50 questions appear earlier in this thread.

post #769 of 1542
Yes, it's getting worse on head-fi. People don't want to learn it seems. Sometimes I spend 4 days reading threads with multiple hundred pages. I take notes and learn, but hey, who am I smily_headphones1.gif
post #770 of 1542

beerchug.gif

Quote:
Originally Posted by Ultrainferno View Post

Yes, it's getting worse on head-fi. People don't want to learn it seems. Sometimes I spend 4 days reading threads with multiple hundred pages. I take notes and learn, but hey, who am I smily_headphones1.gif
post #771 of 1542
Quote:
Originally Posted by hodgjy View Post

beerchug.gif

Pass me a beer, I've been learning the same stuff for almost 10 years wink.gif 

post #772 of 1542
As it relates to the 2399, I'm not sure it's ever been established that its completely identical to the 5998 electrically. It's undoubtedly some slight tweak or variant of the 5998, and the looks are quite similar or course, but since I have never seen a data sheet on the 2399, not sure what exactly its specs are.

I also have tubes marked 6520 that appear to be 5998's internally even though 6520 is supposed to be an identical designation for the 6AS7G.

I'm sure Tung Sol had its reasons for all this, but its hard to decipher 50 years on.
post #773 of 1542

And for this ,you get a case of beer,your choice ,may I suggest  ,Becks??

 

Many tnx's skylab

Will start to do ,more reading

 

Mike

post #774 of 1542
I don't think I've ever been more excited over a tube than today. I finally got to unbox an elusive TungSol 7802WB. http://www.mif.pg.gda.pl/homepages/frank/sheets/077/7/7802WB.pdf
Ceramic spacers, graphite anodes, and a transconductance of 20,000! It's heavy....106 grams heavy, and a bottom end to match. It's fast, it's a bit cool, not warm, not fat, not round, not veiled.....is it really a tube? The soundstage is insane...really wide, but well damped and not artificial. Listening to Mara & David, Once we were Gods...outstanding vocals and string plucking. The tube takes a very long time to warm up, making twinking noises until the temp stabilizes. Too soon for me to rank it amongst the others. smily_headphones1.gif

Edited by GrindingThud - 7/8/13 at 4:46pm
post #775 of 1542

Very nice and interesting tube, well done!

post #776 of 1542

is it like 6080WB?

post #777 of 1542

Looks just like it, sounds similar, but with a little more power and lower output impedance in a cathode follower...kind of like a 7236.

Quote:
Originally Posted by Dubstep Girl View Post

is it like 6080WB?

post #778 of 1542

oooh interesting.

post #779 of 1542
just got my gec 6as7g's omg theyre amazing.
post #780 of 1542

Congrats, this is wonderful news. In other news, I'm going Live on Twitter: Listening Party @ Dubstep Girl's Place! biggrin.gif Okay, maybe not. Perhaps, you'll get back to us by Labour Day Weekend...

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