[sclamb]

I know, the WA6 is dead silent anyway. Perhaps Jack uses equipment to test the noise and had found a way to reduce whatever reading, audible or otherwise, that he was getting.

You should really try the Mullard GZ30 brown base too. I got mine from eBay for 20 USD.

 

[atbglenn]

I found a few. Are these the ones you're talking about?
Item# 5794361295

* GZ30 (CV2748) MULLARD RECTIFIER VALVE
* Printed CV2748 KB/DA
* No Mullard logo
* Military boxed

 

[sclamb]

That's the one.

 

[HeadphoneAddict]

Quote:

Originally Posted by atbglenn /img/forum/go_quote.gif I can't imagine the Woo being any quieter than it already is. Unless of course you have super human hearing Oh BTW, I just won a pair of NOS Sylvania 5U4GB made in 1955 for $12. Hopefully they'll sound good.

I have one of those - listened to it a long time ago. It was not bad, although I think my RCA 5U4G was a little better.

 

[takezo]

those of you with the SE... try the rca 5v4g... it may surprise you.
it's on par with the gz30.

 

[Orcin]

That's a "v" as in (rca) victor, not 5u4g?

 

[atbglenn]

Quote:

Originally Posted by takezo /img/forum/go_quote.gif those of you with the SE... try the rca 5v4g... it may surprise you. it's on par with the gz30.

I've been using the RCA 5V4 (as pictured in my avatar) for the last couple of months. I think they're great.

 

[takezo]

this is the RCA 5V4G military version:

the 5u4g are okay but has flabby bass and not such great control and focus as
the 5V4G... and on top of that, 5V4G has a bloomy/tubey mid that's gorgeous... and
it can be had NOS for $15 to $30 each... the latter 5V4GA is not as transparent
and controlled at the highs and bottom.

 

[atbglenn]

Quote:

Originally Posted by takezo /img/forum/go_quote.gif this is the RCA 5V4G military version:

I have the RCA NON military version. Still good in your opinion?

 

[takezo]

military and non-military 5v4g are the same tubes... the former is
screened for reliability factor, i believe. the pic shows the earlier
40-60's version with the larger plates in parallel position... the
later one has narrow plates lined up end to end. both sound very
fine.

 

[atbglenn]

This is the RCA 5V4 I have

 

[jamato8]

I have one of those. I wasn't crazy about the sound, a little bright but I haven't tried it since I redid the power supply so. . . . have just fired it up.

 

[atbglenn]

John, it is brighter than my other rectifiers, but I like it. Works well with my HD650's

 

[jamato8]

Quote:

Originally Posted by atbglenn /img/forum/go_quote.gif John, it is brighter than my other rectifiers, but I like it. Works well with my HD650's

Well the 650's can use a bit of a lift so I agree with you that it might be right for them.

 

[atbglenn]

Maybe the 5V4's are the reason I cant listen to my Sony V6's. Way too bright.