[683ekips]

Quote:

 
To be honest, most of my tubes came from ebay, but some came from vacuumtubes.net
 
For the rectifier, perhaps you can start off with the Mullard CV378, which is $120 at Well Audio at Burlington Square. If the U52 is electrically equivalent to the 5U4G, then the normal Tung Sol or RCA 5U4Gs can be a good starting alternative.

That's excellent advise.  I am assuming $120 is in SGD?  The GEC U52 is S$550! Ouch!
 
What about the power tubes?  What good?

 

[kchew]

Quote:

That's excellent advise.  I am assuming $120 is in SGD?  The GEC U52 is S$550! Ouch!
 
What about the power tubes?  What good?

 
Yup, SGD120.
 
My favourite power tubes are the GEC 6AS7/6080 and Tung Sol 5998. Unfortunately both types are getting rarer and prices are skyrocketing. Otherwise I find the Chatham/Tung Sol 6AS7 pretty good for the price.

 

[SeeHear]

Quote:

Finally had time to roll in some other tubes in Clayton's WA2 and I have to say it improved quite a bit
 
I took out the 5998s and replaced them by simple RCA 6AS7G, giving them a slightly warmer sound
I got a new pair of 6922 Sylvania, smoother sounding as the 7308 Siemens I had before
As rectifiers I'm using a pair of Philips Miniwatt
 
So I finally succeeded in making it sound warmer and more "bassy"
Happy loaner!
 
Btw Clayton, when I give you back the WA2, does that mean I also get chocolates and beer from the States? Just kidding

Did you get more output from this combination?  I have 6080s ( and Philips 6922 with JJ EZ81) and, while I am pretty well satisfied with the current stage and imaging, I could use a little more bass and a lot more output gain via the pre-outs.
 
Thanks,
SeeHear

 

[Ultrainferno]

I think the RCA 6AS7G will give you more bass as your 6080, but if you want more power you should go for the 7236/5998/2399 tubes imho
 

 

[rocknrolldoctor]

Woo lists the
[size=x-small][size=x-small]5998 and 7236 as having greater power than other power tubes in the manual for a WA22[/size][/size]
[size=x-small][size=x-small]When I added a pair of  Sylvaina 7236s made a big difference..[/size][/size]

 

[setamp]

Question for 596 owners.  How long do these tubes take to fully burn in?  I rolled in a set into my Decware CSP2+ and Taboo and they sound a bit thin and grainy in the upper mids.  Sounds like a burn-in issue.
 

 

[DarknightDK]

Quote:

Question for 596 owners.  How long do these tubes take to fully burn in?  I rolled in a set into my Decware CSP2+ and Taboo and they sound a bit thin and grainy in the upper mids.  Sounds like a burn-in issue.
 

 
I'd say give it 60-100 hours. Beyond that time the sound seemed pretty consistent to me. 

 

[setamp]

Thanks.  I assume with burn-in the upper mids will smooth out and the tonal balance will become more linear?
 

 

[DarknightDK]

Yes, that has been my experience. The treble will sound less harsh and grainy.

 

[kchew]

I didn't really hear any burn-in effects with the 596, it sounded pretty darn good out of the box.
 
To bump the thread, have some Beautiful British Bulbs.
 

 

[Silent One]

Quote:

I didn't really hear any burn-in effects with the 596, it sounded pretty darn good out of the box.
 
To bump the thread, have some Beautiful British Bulbs.
 
 

 
A fine selection, indeed. My '596' was highly selective about drive tubes, but otherwise sounded fine right out of the box.

 

[Icenine2]

Clayton,
 
Have you tried Zombie Dust IPA yet?  Ooooooooooooooooooooooo..................Beer.................
Quote:

 
That's great. I see that you got the WA2 to perform to your excellent standards. Now which headphones are the best with your the new improved WA2?
 
Well, that gives me about a year to find those great Chocolates from the States. Forget the beer from here. I'll pay for an all-you-can-drink evening at In de Wilderman.
 
This is the beer I had in Vondelpark. I liked it. But really, any beer would have been great on that hot August day in the park.
 

 

[niten]

Slightly off-topic, but I can't resist mentioning that I spotted a Woo Audio tube amp in the background of Harvey's office in episode 1 of Suits.
I was proud of that catch, and wanted to share with fellow Woo Audio owners and fans.

 

[Silent One]

Good catch! I had previously pushed for product placement of WooAudio amps in film/tv. Originally, I felt Will Gardner of "The Good Wife" would have been perfect. By the way, which model was it?

 

[dminches]

Will is definitely a tube kind of guy.