[GrindingThud]

6n13s winged =C=

 

[Dubstep Girl]

Quote:

Mine just shipped today. I also won a pair of Tung-sol/Chatham 6as7gs on eBay. Not NOS but tested in the mid to high 90s. No complaints since it was only $10 shipped.

 
nice!

 

[hifimanrookie]

Well,I'm a little new to this..just got a crack amp with speedball ..,so ,my tube education continues.
Not overwhelmed at the 7236 sq,as compared to the TS 5998 Chatham...which I like a lot..

Question:
     I found the GEC curved brown base on e-bay ..seller is in England here:
    http://www.ebay.com/itm/A1834-GEC-6AS7G-6080-NOS-VALVE-TUBE-1PC-AB-/370719671332?pt=UK_Sound_Vision_Valves_Vacuum_Tubes&hash=item56509d4424


And these:
  http://www.ebay.com/itm/A1834-6AS7G-CV2523-GEC-BROWN-BASE-NOS-VALVE-TUBE-H2-1PC-/370551093320?pt=UK_Sound_Vision_Valves_Vacuum_Tubes&hash=item564690f848


What is the difference,& why is there a $100.00 difference in price?
Are these tubes so outstanding??,and,is the priced justified?
Any info/advice will be appreciated

Tnx
Mike

I understand the brownbased gec is the big boss of tubes...the very best u can get..but at the highest prices also.

 

[skeptic]

Quote:

I understand the brownbased gec is the big boss of tubes...the very best u can get..but at the highest prices also.

 
Having spent a fair amount of time with a GEC 6as7g brown base (in a hotrodded bh crack, driving HD800's) - I find I'm on the fence as whether or not this tube has been over-hyped.  No doubt it is a really nice tube, but so are 5998's, which can be had for a lot less money.
 
My superficial understanding from the bottlehead forums, and elsewhere, is that 5998's/7236's lower the output impedance of your amp (generally a good thing) but also have higher gain than 6as7(g)'s, which may or may not be a good thing in your setup.  (See: page 2 of http://www.pmillett.com/Wheatfield/rolling.pdf )
 
All said and done, I probably wouldn't recommend spending much over $120 for a GEC 6as7g, assuming that they perform, on average, like the one I have.  I like it better than some of my 5998's, but I do have a couple of particularly quiet 5998's that I tend to reach for more often than the GEC tube.  Just my view, fwiw.

 

[Dubstep Girl]

whats the main difference between GEC and 5998s in terms of SQ? 
 
i've pretty much decided that my T1/WA2 will forever remain as my reference system, so i've been looking at maxing out my tubes 

 

[Neogeo333]

dp

 

[Neogeo333]

double post

 

[MrEleventy]

awesome, looking forward to trying it out in my darkvoice. I need better 6ns7 tubes too now. rolling doesn't stop.

Mine arrived. . Little bit of corrosion on the base, but otherwise a nice clean tube for $35. Tube sounds great being driven by 6cg7.

 

[hifimanrookie]

whats the main difference between GEC and 5998s in terms of SQ? 

+1 i have same question...as to buy a matched pair to try it out is almost impossible as they are so beeeeeep expensive..

 

[mikek200]

Quote:

whats the main difference between GEC and 5998s in terms of SQ? 
 
i've pretty much decided that my T1/WA2 will forever remain as my reference system, so i've been looking at maxing out my tubes 

I should have my bifrost back from schiit,& my GEC tube..by middle of next week.
 
I will try my best to do some serious listening,and give a a/b comparison against my 5998's,& Siemens silverplates
 
Dubstep ,,,,what headphones are you using?
Your amp is the W3 pictured above??-----beautiful.

 

[Dubstep Girl]

Quote:

I should have my bifrost back from schiit,& my GEC tube..by middle of next week.
 
I will try my best to do some serious listening,and give a a/b comparison against my 5998's,& Siemens silverplates
 
Dubstep ,,,,what headphones are you using?
Your amp is the W3 pictured above??-----beautiful.

 
nope, i have WA2, the WA3 there is the other guy's post
 
i use HD 800 and T1 with it.

 

[skeptic]

Quote:

whats the main difference between GEC and 5998s in terms of SQ? 
 

 
I think the description at the bottom of the page in the link I provided above (http://www.pmillett.com/Wheatfield/rolling.pdf), summarizes it quite well at the bottom of page 2:  "The 5998, 7236, and 6528 have different characteristics than the 6AS7 and 6080 tubes, which lower the output impedance of the HA-2. The resulting sound tends to be brighter and faster than the stock 6080. Conversely, a good old-stock 6AS7G tube can fatten the bass and give an even more "tubey" sound."
 
 
The GEC is basically a very refined and detailed 6as7g.  I wouldn't call it tubey in any negative sense of the word, but it does have a fatter bass than a 5998.  5998's sound a bit brighter with a more holographic sound-stage.  The difference in gain is also significant.  5998 has nice tight deep bass, but with some songs, I find I do have to listen at a higher volume to get same sensation of full sound that I get with the GEC at a lower volume.  Pros and cons - but both wonderful tubes!    

 

[Nic Rhodes]

I find the GEC has delicasy and finesse the 5998 doesn't have, it seems to present better detail also. I love the 5998 but find the A1834 to be a better tube. I use both. The above comment I can recognise. Pity all are so expensive now They do make Chatham / RCA 6AS7G look very cheap now.

 

[rosgr63]

The GEC sound wonderful.
 
However not many 6AS7 amps can run the 5998's properly.
When run properly the 5998 sound even better.

 

[Beefy]

When comparing the 6AS7 and 5998, how are you all volume matching? The difference in gain is fairly substantial between the two.