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Woo3 Modified - Page 15

post #211 of 220
8/24/07 at 3:26pm
Thread Starter 
That is a tough one without measuring the tube. It could be going bad or it just may be a noisy tube. Sometimes it might be gassy, which can cause the hissing or the internal construction could be a little off. Some people never store their tubes on the side but keep the tubes in the upright position. Most of the time I have seen tubes on their side but I try and store my tube upright. The idea is that the internal constuction could sag over time to one side causing problems due to the very close tolerances.

I have some tubes in that I have used in my 27 preamp that are from the late 1920's that will be noisy until they are on a few hours. I would just use the good tube, if it were me. It is part of the tube world. Some are good and some brand new tubes aren't.
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post #212 of 220
8/24/07 at 3:32pm
thanks John, I'll follow your advice (also about storing tubes upright, never thought about that...)
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post #213 of 220
9/26/08 at 5:12pm
Thread Starter 
Quote:
Originally Posted by pftrvlr View Post
Has anyone tried re-wire the driver tube into SRPP?
This is an old post but for some reason I never saw it. SRPP would be interesting to do. Some people like it and others don't. I would enjoy trying it but often I have also found that having one single tube section or parallel, is more transparent. It would still be interesting though.
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post #214 of 220
4/1/09 at 2:54am
Hello!

My friend bought recently WA3 for his Senn HD650. He wants to change the stock tubes for something better. The impression is that, with the stock tubes, bass is great, highs are ok (even though they are rolled-off too much to my liking, I can hear the details are lost), the biggest complaint is sparkling mids. They are too emphasized - sibilant consonants are unpleasantly accentuated.

I am looking for any advise which tubes should I buy for my friend, with the following goal in mind:

Highs: Increase detail, reduce roll-off
Mids: Tame their sparklingness, remove the emphasis on sibilants
Bass: Leave untouched (or make it better/deeper, if possible)

The changes in sound we are looking for apply both to headphone output and pre-out, because the amp is also used as a pre-amp for his power amp/floor-standing speakers.

I would especially appreciate if someone could direct me to places where the recommended tubes are sold.

Regards,
Evgeny K.
Russia
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post #215 of 220
4/1/09 at 10:52am

Review This Thread...

Review this thread... and the other WA3 threads... and... you'll find your answer.

But, as I recall...

... most think the Tung Sol 5998 tube produces the best sound, in conjunction with Amperex 6DJ8 / 6922s, or maybe Siemens, Mullards, or even JJs, or maybe you could find some Telefunken equivalents.

But... you might try some Sylvania 6DJ8 / 6922s, or some Russian Saratov 6H23N-EBs, or possibly the Voskhod 6N1P-EBs.

I'd just do a Google search for these.

But... you might try www.tubeworld.com, Welcome to TubeDepot.com!, Vacuum tubes @ thetubestore. New and NOS electron tubes for any amplifier., or eBay. There are a lot more, though.
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post #216 of 220
4/1/09 at 7:46pm
Quote:
Originally Posted by Gradofan2 View Post

... most think the Tung Sol 5998 tube produces the best sound, in conjunction with Amperex 6DJ8 / 6922s, or maybe Siemens, Mullards, or even JJs, or maybe you could find some Telefunken equivalents.

But... you might try some Sylvania 6DJ8 / 6922s, or some Russian Saratov 6H23N-EBs, or possibly the Voskhod 6N1P-EBs.

But... you might try www.tubeworld.com, Welcome to TubeDepot.com!, Vacuum tubes @ thetubestore. New and NOS electron tubes for any amplifier., or eBay. There are a lot more, though.
Thank you, Gradofan!
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post #217 of 220
4/1/09 at 7:59pm
Oh boy this is a good thread...I lost my HP amp virginity here.

I use Tung Sol 5998 & Amperex 6922. Mine is 100 % stock inside...I was never brave enough to change it.
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post #218 of 220
11/1/09 at 4:10pm
Just read the whole thread this morning(Now twice). This is on my radar. Good read.
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post #219 of 220
3/22/11 at 10:13am

Can anyone give a ballpark of how much Jack charged for the V-Cap + Black Gate upgrade?

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post #220 of 220
3/24/11 at 11:03pm
Thread Starter 

I don't know if you can get the Black Gates any longer. I have some but they are no longer sold having been last produced a few years ago. On the V caps, I wouldn't put them into the Woo 3 but maybe some nice oil caps. The V caps are a few hundred and I don't think the Woo 3 will resolve enough to warrant the V caps. 

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