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For 6AS7G tube rollers here .....
Jun 3, 2017 at 7:00 PM Post #3,871 of 9,562
The 6080 was developed as an industrial version of the 6AS7G. So while it is not electrically identical to the 6AS7G, it is very similar, and I have mixed them in my amp. However, I do not have a LD, so I can't be sure that it is safe for you to mix them in your amp.

Perhaps another question to ask David....
 
Jun 3, 2017 at 8:37 PM Post #3,872 of 9,562
6080 has more detail than the 6AS7G imo. punchy, clicky bass (especially the kick drum) and more resolving mids + treble range.

however for a detailed tube I don't like the cheaper 6080 that much. Best 6080 is the bendix 6080WB.

Also worth noting that amp design and topology can affect the extent that different tubes will change the sound profile of your amp. Your mileage may vary!
 
Jun 3, 2017 at 9:12 PM Post #3,873 of 9,562
My 6080 preference

GEC
Mullard
Bendix
GE Five Star
RCA
Sylvania

Also others like Toshiba and Philips but I suspect they are rebrands and Telefunken but I have never owned a real one
 
Jun 12, 2017 at 3:10 AM Post #3,874 of 9,562
(I posted this in a wa2 thread but had no reply - trying here too)

Just wanted to check here re the gec 6as7g

Am i right in thinking the a1834 labeled tubes are a slightky better grade than the cv2423 and 6as7g of all these brown base gec tubes?

I read it a while ago but cant find or remeber it

And a z code, i think, meant hammersmith factory.
Does that carry any weight?

Thanks for any help
 
Jun 12, 2017 at 9:35 AM Post #3,875 of 9,562
thecrow said:
(I posted this in a wa2 thread but had no reply - trying here too)

Just wanted to check here re the gec 6as7g

Am i right in thinking the a1834 labeled tubes are a slightky better grade than the cv2423 and 6as7g of all these brown base gec tubes?

I read it a while ago but cant find or remeber it

And a z code, i think, meant hammersmith factory.
Does that carry any weight?

Thanks for any help
Click to expand...

I doubt it. A1834 is simply an old British number for this tube. And further, the color of the base is of no significance. The only thing that matters is what is inside the bottle. Applying the silk-screened labels and mounting the base were done after the bottle had been manufactured and evacuated.

And yes, the Z code indicates that the tube was manufactured by the MO Valve Company, at their Hammersmith, London, factory.
 
Jun 12, 2017 at 10:04 AM Post #3,876 of 9,562
Absolutely - a1834, cv2423 and 6as7g, they are all the same.

I just bought this very good condition tube for $80. There are still bargains out there if you get them single.

s-l1600 (30).jpg

s-l1600 (31).jpg

and this for $35...
s-l1600 (28).jpg
 
Jun 12, 2017 at 1:23 PM Post #3,877 of 9,562
UntilThen said:
Absolutely - a1834, cv2423 and 6as7g, they are all the same.

I just bought this very good condition tube for $80. There are still bargains out there if you get them single.





and this for $35...
Click to expand...
I made an offer for the tube for $80 aud. i shiuld have just bought it for the $100 asked for.

Enjoy!!
 
Jun 13, 2017 at 6:15 AM Post #3,879 of 9,562
gibosi said:
The 6080 was developed as an industrial version of the 6AS7G. So while it is not electrically identical to the 6AS7G, it is very similar, and I have mixed them in my amp. However, I do not have a LD, so I can't be sure that it is safe for you to mix them in your amp.

Perhaps another question to ask David....
Click to expand...

Interesting. Yes probably a good question :)
 
Jun 13, 2017 at 3:19 PM Post #3,881 of 9,562
If you compare the specifications listed in the datasheets, you will see that the Direct Interelectrode Capacitances are slightly different, but otherwise, yes, the 6080 and 6AS7G appear to be electrically identical. And it is true that many consider the 6080 and 6AS7G to be similar enough to be interchangeable in most applications, However, given that my knowledge and experience are quite limited, I always try to err on the side of caution. :)

https://frank.pocnet.net/sheets/049/6/6AS7G.pdf

https://frank.pocnet.net/sheets/049/6/6080.pdf
 
Jun 13, 2017 at 9:57 PM Post #3,882 of 9,562
That is true. I actually hadn't looked at those numbers closely until now.

I would also like to point you to the GE datasheet for the 6AS7g(a). It has different capacitance ratings, as does this datasheet for the 6080. What the cause of this is, I don't know. It might just be different manufacturers' different internal constructions having different capacitance.

Besides capacitance (or not?), the 6080 and 6AS7 have the same ratings and performance.
 
Jun 23, 2017 at 4:36 PM Post #3,884 of 9,562
At a high level, the RCA is warmer but somewhat less transparent. The Chatham is more balanced and transparent. Both nice, but I think the Chatham 6AS7G's are noticeably better than the RCA.
 
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