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Aune T1 USB Tube DAC+ SS Amp Discussion Thread ***See first post for FAQ--Updated on 02/14/15*** - Page 489

post #7321 of 7326
Quote:
Originally Posted by HICKFARM View Post
 

Going to double check, but i think the 6EA8 might work as well.  Believe it just uses more amps.  

Is there a way to test the tubes without a tube tester?  Just don't want to have any shorts and fry my AUNE.   

A tube tester is about the only way to reliably test them.

 

If you have a multimeter, you could try ohming out the heater, but it will only give you the cold resistance reading... depending on where you live, you may find a classified ad where someone is selling vacuum tubes and you could ask them if they have a tester. (I've done this myself for some of the tubes I bought from eBay).

post #7322 of 7326

So the 6DJ8 draws 365mA That is verified to work with the Aune  

http://www.audiomatica.com/tubes/6dj8.htm

 

 

 

The 6EA8 draws 450mA with all the pins and such appearing to be the same.  

http://frank.pocnet.net/sheets/093/6/6EA8.pdf

 

So it seems i should be able to use the 6EA8 in this DAC.  Unless it can't handle the higher amperage.  

Correct me if I am wrong.  Still new to the whole vacuum tube area.  

post #7323 of 7326
Quote:
Originally Posted by HICKFARM View Post
 

So the 6DJ8 draws 365mA That is verified to work with the Aune  

http://www.audiomatica.com/tubes/6dj8.htm

 

 

 

The 6EA8 draws 450mA with all the pins and such appearing to be the same.  

http://frank.pocnet.net/sheets/093/6/6EA8.pdf

 

So it seems i should be able to use the 6EA8 in this DAC.  Unless it can't handle the higher amperage.  

Correct me if I am wrong.  Still new to the whole vacuum tube area.  

Well, people were using the 6H30Pi which apparently pulls over 800mA of heater current...

post #7324 of 7326

So tried the 6EA8 and only my right headphone speaker produced sound and didn't sound great.  Both of the 6EA8 s that i own did this.  The others seem to be TV vacuum tubes, so sadly i didn't find a good one out of the bunch.  The 7308 I already own sounds great.

 


Might have to turn them into some sweet steampunk projects.  

post #7325 of 7326

Why do people say the amp for Aune T1 isn't so good? Because of how it sounds? Or because it isn't very powerful?

 

The specs I've seen on the amp looked pretty powerful. 400mw at 120ohms which in my head is rather decent power

post #7326 of 7326
It's just a run of the mill op-amp. The sound can be improved by using a different amp, but I do agree that it can sound nice with certain headphones. I use it to drive my HD-650's when I'm away from home half the time and it sounds wonderful. You can certainly get even better sound trying to use the T1 as a DAC, feeding another amp as well.
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