[bcowen]

Did you see the RCA icon on the box?

I think that's RVC (Radio Valve Company) rather than RCA:

http://www.jproc.ca/marconi/tube_production.html

 

[attmci]

I think that's RVC (Radio Valve Company) rather than RCA:

http://www.jproc.ca/marconi/tube_production.html

There is no Marconi 6SN7GT, it's a B65!

But this looks like something different. The American Marconi is RCA for sure.

Italian Marconi is Firve.

 

[LoryWiv]

Seller on the Brimars? Didn't even pay attention initially, sad to say. Menifee Audio is BangyBang. Not that I would ever buy anything from either, but from what I've seen being sold on the Menifee site the tubes usually look to be genuine. Seriously overpriced in most cases, but genuine. The BangyBang site is for the fakes and relabels. Overpriced too even if the tubes were legit (which in most cases they aren't). One of the worst scammers on Ebay, IMO.

Yikes, I did order a pair of Brimar's from Menifee, forgot they were same folks as BangyBang which I knew to steer clear of. The photos and test results looked favorable and price reasonable. I should have them in 4-5 days and will report if concerns.

 

[Ripper2860]

I bought a clear glass / brown base Brimar CV1988 / 6SN7GTY and should be getting it in a few weeks. While it does not actually say Brimar, the plates and mica structure are a give-away. The plates on this one are BLACK as they are on my smoked glass Brimar CV1988.

If your CV1988s sound anything like my smoked glass, you'll be very happy, IMHO.

 

[Dave01236]

Does anyone have experience with the mullard ecc35's AND the sylvania metal base 6sn7w? I'm currently rocking the mullard's in my WA22 amp, and I've heard amazing things about the sylvania tubes. I just don't know how they compare against the mullards. And nowadays the sylvania tubes are CRAZY expensive. So, gotta make sure before I do anything stupid to my wallet.

I'm also curious about the 6fg8 tung sol tubes, if someone could compare them to the ecc35's that'd be great as well since they are much cheaper than the sylvania tubes and still offer a great sound.

 

[thomaskong78]

Does anyone have experience with the mullard ecc35's AND the sylvania metal base 6sn7w? I'm currently rocking the mullard's in my WA22 amp, and I've heard amazing things about the sylvania tubes. I just don't know how they compare against the mullards. And nowadays the sylvania tubes are CRAZY expensive. So, gotta make sure before I do anything stupid to my wallet.

I'm also curious about the 6fg8 tung sol tubes, if someone could compare them to the ecc35's that'd be great as well since they are much cheaper than the sylvania tubes and still offer a great sound.

Mullard ecc35' is 6sl7 tube with 3 times more gain than 6sn7.

They may be interchangeable in some amps and not in other amps due to distortion.

i had used Mullard ecc35' in Line Magnetic 508 for one year with good result.

But about 3 weeks ago I replaced it with RCA 5691 which give better details and deeper bass than Mullard ecc35'.

Pair of Rca 5691 can be bought at around 200$ from Ebay.

 

[Dave01236]

Mullard ecc35' is 6sl7 tube with 3 times more gain than 6sn7.

They may be interchangeable in some amps and not in other amps due to distortion.

i had used Mullard ecc35' in Line Magnetic 508 for one year with good result.

But about 3 weeks ago I replaced it with RCA 5691 which give better details and deeper bass than Mullard ecc35'.

Pair of Rca 5691 can be bought at around 200$ from Ebay.

Yes my amp supports both the 6sl7 and the 6sn7. And im surprised that those rca tubes sound actually better than the mullards! I'll see if i could find a decent pair of those.

 

[attmci]

Yes my amp supports both the 6sl7 and the 6sn7. And im surprised that those rca tubes sound actually better than the mullards! I'll see if i could find a decent pair of those.

You can find a pair.

However, I disagree with thomas. It depends.

 

[thomaskong78]

QUAD FOUR Matched Balanced Russian 6N8S 6SN7 double triode TUBE NEW NOS | eBay

After listening to 1578 Melz, I am back to Nos 6n8s tube made in 1978 that I got quad at 46$.

By the way i got my first serious audio system on 1978.

What a coincidence.

This is a steal.

It sound musical with good balance of full bass and sweet treble.

Jump at it before they run out of this batch.

 

[thomaskong78]

Deleted

 

[thomaskong78]

You can find a pair.

However, I disagree with thomas. It depends.

You seem to be nice gentleman.

Thanks for kind word.

 

[Phantaminum]

Does anyone have experience with the mullard ecc35's AND the sylvania metal base 6sn7w? I'm currently rocking the mullard's in my WA22 amp, and I've heard amazing things about the sylvania tubes. I just don't know how they compare against the mullards. And nowadays the sylvania tubes are CRAZY expensive. So, gotta make sure before I do anything stupid to my wallet.

I'm also curious about the 6fg8 tung sol tubes, if someone could compare them to the ecc35's that'd be great as well since they are much cheaper than the sylvania tubes and still offer a great sound.

You’re talking about top tier tubes.

Mullards are nice and warm. Really fantastic for its smokey, smooth mids, with great bass and are holographic. They are some of my favorites.

Sylvania 6SN7Ws have more treble extension, with punchy bass, while behaving more neutral. Holographic as well.

Tung-Sol 6c8g sounds just like the BGRP 6SN7 version. They take a bit more to open up but have great treble extension, great bass, and have fantastic drive. The PRaT on these is some if not the best. You can’t go wrong with any of them but rating them it would go:

1. TS 6c8g
2. Mullard ECC35
3. Sylvania 6SN7W

 

[whirlwind]

You’re talking about top tier tubes.

Mullards are nice and warm. Really fantastic for its smokey, smooth mids, with great bass and are holographic. They are some of my favorites.

Sylvania 6SN7Ws have more treble extension, with punchy bass, while behaving more neutral. Holographic as well.

Tung-Sol 6c8g sounds just like the BGRP 6SN7 version. They take a bit more to open up but have great treble extension, great bass, and have fantastic drive. The PRaT on these is some if not the best. You can’t go wrong with any of them but rating them it would go:

1. TS 6c8g
2. Mullard ECC35
3. Sylvania 6SN7W

Great description of these tubes, and pretty much spot on to what I hear
I adore the sound of the Mullards, whether it be ECC 31/32/33/35 all are some of the best I have heard.

 

[thomaskong78]

After listening to 6n8s tube made in 1978 for several hours, I am back to Kenrad vt 231.
KR also has nice bass with sweet and refined atmostphere.

Definitely KR vt231 is at least half notch or even one notch above 6n8s .


Now I have 16 different variants of 6sn7 tubess.

After changing tube, sound also change as if new pre is being used.

It is like tasting various wines or coffees.

But if you do lot of tube rolling, be sure to use socket saver.

https://www.ebay.com/itm/CED-P-ST8-...e=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649


By the way, if your amp can use both 6sn7 and 6sl7, then it is economical to buy 6sl7.

Pair of TS bgrp 6sn7 cost 500$ or more while you can get pair of TS bg vt229 around 100$.

I also have TS bg vt229 which sounds vivid with lot of details like TS bgrp vt231.

 

[JKDJedi]

After listening to 6n8s tube made in 1978 for several hours, I am back to Kenrad vt 231.
KR also has nice bass with sweet and refined atmostphere.

Definitely KR vt231 is at least half notch or even one notch above 6n8s .


Now I have 16 different variants of 6sn7 tubess.

After changing tube, sound also change as if new pre is being used.

It is like tasting various wines or coffees.

But if you do lot of tube rolling, be sure to use socket saver.


By the way, if your amp can use both 6sn7 and 6sl7, then it is economical to buy 6sl7.

Pair of TS bgrp 6sn7 cost 500$ or more while you can get pair of TS bg vt229 around 100$/

Preaching to the choir, but thanks for sharing your experiences.