The Woo Audio 2
Mar 17, 2014 at 7:42 PM Post #961 of 1,584

billerb1

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  Well, I got a pair of NOS Sylvania 7236 matched for 60$, so that is 1/3 of the price I would have paid for TS 5998. And some Siemens E88CC with gold pins for 120 $. Hope that will do the trick. Are the rectifiers a must or is stock decent?
 
I can get some Ei EZ80 for 35 $ a pair.


The RFT EZ80's are great rectifiers and are cheap...can get a NOS pair sometimes for $20 on ebay.
 
Mar 19, 2014 at 12:57 PM Post #963 of 1,584

billerb1

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  I found NOS RFT Ez80 at 5$/piece. 5 of them. Must they be matched?
And also NIB Tesla EZ81 at 5$/piece. 16 of them. Must they be matched?
 
Thanks

My experience is that a lot (most?) of tube sellers don't match these.  I'm not sure if it's absolutely necessary...I've heard both pros and cons.  I would think you'd be fine with any pair of rectifiers if both were considered NOS.  But then again I'm no tube expert and I'll be interested too in what others responses might be to your question.
 
Mar 19, 2014 at 4:19 PM Post #965 of 1,584

StanT

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  I found NOS RFT Ez80 at 5$/piece. 5 of them. Must they be matched?
And also NIB Tesla EZ81 at 5$/piece. 16 of them. Must they be matched?
 
Thanks


Rectiifiers aren't generally matched ( I don't know why). Tesla EZ80 are blah, I can't speak to EZ81s. RFT EZ80s are very good.
 
Mar 19, 2014 at 5:07 PM Post #967 of 1,584

Dubstep Girl

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I had the NOS tesla's and i much preferred the RFT. The RFT EZ80 are really good. I've heard good things about Mullard, Brimar, and Ei EZ80 as well. oh and RFT EZ81.
 
Mar 31, 2014 at 10:50 AM Post #969 of 1,584

dany111777

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Has anyone heard 6080 Telefunken? Or 6080 Sylvania? How are they compared to stock (which is GE 6080 now) or to the 7236 Sylvania?
Here's a link.
 
http://www.ebay.com/itm/6080-6AS7W-Telefunken-Rohre-NEU-6AS7-ECC230-Valve-NOS-Tube-amp-/371034837051?pt=DE_TV_Video_Audio_Elektronenr%C3%B6hren_Valves&hash=item566366503b
 
Apr 9, 2014 at 5:40 PM Post #970 of 1,584

dany111777

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Man, this thread is dead!!!
 
I'll give it another shot though .... After some burn in, and switching to rft EZ80, Philips e88cc and Sylvania 7236, the muffled sound problem disappeared. But the sound got to piercing highs! I can't listen to it more than an hour, I thought this was supposed to be a TUBE amp.
 
What do you think? I found some Sylvania 6as7GA for sale and some Telefunken 6080. Could it solve the problem? Or is it in the driver/rectifier department?
 
Apr 9, 2014 at 8:13 PM Post #971 of 1,584

billerb1

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D, what cans are you using?
I really like the RFT EZ80's for what I listen for thru Beyerdynamic re-cabled T1's.
But they tend a little toward the forward, bright side.  You might see if you can find
any Great Britain made Brimar EZ80's.  More instrument timbre to me and a bit darker than
the RFT's but without losing detail.  Hard to  find but a great tube for me.
I haven't run the 7236's in mine...always the 5998's.  One of the 6AS7A's will take the edge off
the treble for you I would think...but at the price of maybe getting some of that muffled sound back.
Good luck.
 
Apr 9, 2014 at 8:34 PM Post #972 of 1,584

Kiats

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Hey guys! I just picked up a Woo Audio 2 a few weeks back and am still new to this whole new world of tube rolling. 
atsmile.gif
 Any suggestions where I might read up on tubes etc?
 
Thanks!
 
Apr 9, 2014 at 8:42 PM Post #973 of 1,584

MIKELAP

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  Hey guys! I just picked up a Woo Audio 2 a few weeks back and am still new to this whole new world of tube rolling. 
atsmile.gif
 Any suggestions where I might read up on tubes etc?
 
Thanks!

 
http://www.head-fi.org/t/393811/woo-wa2-tube-rolling-recommendations  

 
Apr 9, 2014 at 8:45 PM Post #974 of 1,584

Kiats

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Thanks, Mikelap! 
atsmile.gif

 
Apr 9, 2014 at 9:03 PM Post #975 of 1,584

billerb1

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  Hey guys! I just picked up a Woo Audio 2 a few weeks back and am still new to this whole new world of tube rolling. 
atsmile.gif
 Any suggestions where I might read up on tubes etc?
 
Thanks!


Brent Jessee's page has a lot of info if you  really want to start getting educated...
http://www.audiotubes.com/6dj8.htm
 
and Joe's Tube Lore:
http://www.audioasylum.com/scripts/d.pl?audio/faq/joes-tubes.html
 

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