[Skylab]

Quote:

How does the Mullard ECC33 sound with the SP Extreme?

REALLY good.  That was the driver tube I used for a long time, when I was afraid of using an ECC32 for fear of pulling too much current from the transformer (before I had the transformer replaced). 

 

[rosgr63]

Thanks skylab, in that case It's time to try out my ECC33.
With the upgraded transformer would it be safe to use the ECC2 or is it pushing it a bit.
BTW the Osram 6AS7G's sound great IMHO better than TS 5998's and WE421A's.
I am using a Brimer 6SN7GT Black Glass for my driver, great tube.

 

[Skylab]

With the Electra-print transformer that is in mine, the ECC32 is no problem at all.
 
And yeah, the GEC 6AS7G is my favorite of all of that tube type - not surprised to like the Osram

 

[flood]

hi there, newbie on this forum (kind of got drawn into it through a transaction with rosgr63 - great guy and great transaction!) - does anybody have a good idea for a DIY headphone amp design based around the 6SN7, perhaps in conjunction with E88CC and 6SL7? 
 
I'd like to mention that I'm primarily a guitar amp builder, although I have done a couple of simple hi-fi designs (Yaqin tube buffer, Oddwatt) in the past. The best headphones I have are AKG k141 Studio...

 

[rosgr63]

Welcome to Head-Fi,
There's a lot of expertese to guide you, enjoy the hobby.
Many thanks for the great ECC33's.
I tried one of them driving a pair of RCA 6AS7G's and it sounds great!
skylab is so right!

 

[KingStyles]

 
Quote:

does anybody have a good idea for a DIY headphone amp design based around the 6SN7, perhaps in conjunction with E88CC and 6SL7? 

Welcome to headfi. You may want to post a thread in the diy section. Im sure someone there would have some info. Even though he is led about by his love of tubes, rosgr seems to be a great guy.

 

[rosgr63]

Quote:

 
Welcome to headfi. You may want to post a thread in the diy section. Im sure someone there would have some info. Even though he is led about by his love of tubes, rosgr seems to be a great guy.

Thanks for been so kind, I am so happy to have friends like you!
 
I am a Head-Fi'er, 6SN7 addict, love the hobby and enjoy the music.

 

[pataburd]

Just bought a smoke glass, Hytron-branded 6SN7GT round plate.  I've never seen one before.

 

[Skylab]

Nice find!I have never seen one of those either.

 

[rosgr63]

Quote:

Just bought a smoke glass, Hytron-branded 6SN7GT round plate.  I've never seen one before.

How does it fair against your other tubes?
 
Another tube worth considering is the Brimar 6SN7GT Black Glass Black Base, very smooth and musical.
This is not the CV1988 version.

 

[pataburd]

Bad news.  When setting the tube (of course the amp was off), it arced off a pin with the tube socket and subsequently did not power up.  I waited four hours to change the tube and apparently my right MOSFET got fried (I have no right channel signal).  I am guessing that the tube shorted when I powered up the amp.  The glass envelope was very loose.  Oh well . . . 

 

[rosgr63]

Sorry to hear this.
I didn't know something like that could happen!
I assume this was the Hytron tube.

 

[pataburd]

I'm quite sure it was a bad tube with a short.

 

[Skylab]

That sucks man.  So sorry to hear that.

 

[pataburd]

Hopefully, I can find a local tech who can do the fix without messing up Fitz's custom work.  The circuit board needs to come out to do the job right.
 
No DT880/600 tube-rolling fun today, or for a good many days.  Plan B: use the AMC XIA (SS).