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Woo Audio Amp Owner Unite - Page 1973

post #29581 of 30826
Quote:
Originally Posted by nwavesailor View Post
 

Glad to do it.................

 

I started down the tube 'rabbit hole' a few years ago and there's no going back!

Yeah, its like a downward spiral!

I was just reading quickly that the tube I ordered was made in Brussels in 1958 according to the letter/number markings.

Thanks again, very interesting reading.

post #29582 of 30826

Yes, a Rabbit Hole so deep, one could remove the dead batteries from the flashlight and drop 'em........ never ever hearing them:eek: hit bottom.

post #29583 of 30826
Not sure on 5v4g, but to me, the cv593 is superior to the sophia in everything but soundstage. And maybe bass, but sophia has more one noted bass
post #29584 of 30826

To me, Miss Sophia needed refining a bit. I wouldn't dare :eek: call the Princess fat!

post #29585 of 30826
Quote:
Originally Posted by Dubstep Girl View Post

Not sure on 5v4g, but to me, the cv593 is superior to the sophia in everything but soundstage. And maybe bass, but sophia has more one noted bass

I have the Mullard 5V4G/GZ32 that I got for $45.00, I believe it is a brand new one (current production), I figured I'd try it for the price just too see if I like it, and tell you the truth its with the money, I do like it, but don't forget I'm pretty new too the tube thing and I haven't heard many rectifier tubes yet except for the S/P-274B, which so far with the 1966 Sylvania 6SN7WGT's I really enjoy! I'm waiting for the 1958 5AR4/GZ34 to arrive so I can hear if I like that one. The listing says its a Mullard made in Britain, but another Head-Fier told me he has the same one and from the markings, he says its made in Holland…then someone just directed me to a site were the tube I'm waiting for says it from 1958 and made in Brussels, right after the metal base tube. So I have three different answers, but anyway I heard it sound very good, and I'll know for myself soon.

I also looked on your thread too see if you had listed it and had any comments about it but you listed the metal base, and only mentioned the black base as being more common. 

post #29586 of 30826

Just did some further research on the $45.00U.S., Mullard 5V4G/GZ32;

 

http://www.ebay.com/itm/Two-2-Mullard-5V4G-equivalent-to-52KU-CV729-GZ32-5AQ4-/181305927817?nma=true&si=VBMR35vAV5XSxygcsd0C6PHXXSg%253D&orig_cvip=true&rt=nc&_trksid=p2047675.l2557

 

Seems the date code is from 1959, I was under the impression this tube was a NEW production.

post #29587 of 30826
Quote:
Originally Posted by joseph69 View Post
 

Just did some further research on the $45.00U.S., Mullard 5V4G/GZ32;

 

http://www.ebay.com/itm/Two-2-Mullard-5V4G-equivalent-to-52KU-CV729-GZ32-5AQ4-/181305927817?nma=true&si=VBMR35vAV5XSxygcsd0C6PHXXSg%253D&orig_cvip=true&rt=nc&_trksid=p2047675.l2557

 

Seems the date code is from 1959, I was under the impression this tube was a NEW production.

 

Are there any differences between the CV729 and CV593? 

 

I was also taking a look at this:

 

http://www.ebay.com.sg/itm/Millard-GZ32-Vintage-Valve-/171254468740?pt=UK_Sound_Vision_Valves_Vacuum_Tubes&hash=item27df8fd084&_uhb=1

 

It says Mullard GZ32 on the tube so I'm assuming that the "Millard" is simply a typo. 


Edited by Snips - 3/8/14 at 10:44pm
post #29588 of 30826
Quote:
Originally Posted by Snips View Post
 

 

Are there any differences between the CV729 and CV593? 

To be quite honest, your asking the wrong guy. I'm fairly new to tube amps/tubes, so I need to learn plenty more, so I take a little in at a time, but I'm learning... I was pointed in the right direction by other Head-Fiers, sorry.

post #29589 of 30826
Quote:
Originally Posted by joseph69 View Post
 

I'm waiting for the 1958 5AR4/GZ34 to arrive so I can hear if I like that one. The listing says its a Mullard made in Britain, but another Head-Fier told me he has the same one and from the markings, he says its made in Holland…then someone just directed me to a site were the tube I'm waiting for says it from 1958 and made in Brussels, right after the metal base tube. So I have three different answers, but anyway I heard it sound very good, and I'll know for myself soon.

 

You should believe nwavesailor. X = Sittard, L = Brussels.

post #29590 of 30826
Quote:
Originally Posted by Oskari View Post
 

 

You should believe nwavesailor. X = Sittard, L = Brussels.

See, now the tube I'm waiting for has an X8 on it, and here is the exact tube I purchased on the site below, describing it is from Brussels, its the (f31 X8X);

 

http://www.tube-classics.de/TC/Tubes/Valvo%20GZ34/GZ34.htm

post #29591 of 30826
post #29592 of 30826

Sorry Joseph!

 

Yes, 'X' (AFAIK) is reported to be Sittard production and the other link with the history and great pics indeed does list in error. I think it is still a good GZ24 guide even though that production code was in error. It is NOT however, UK production at any rate even though the listing may say so or even the printing on the tube may say so. Go with the etched (or between the pins)code

 

Oh well, the internet is only as good as the accuracy of the info in a posting.................

 

No matter where it was made, it is still the next version of production right after the metal base.

post #29593 of 30826

OK, so here is one section the border between the 2..............close enough for great tube production in the 40's, 50's and 60's!

 

 

 


Edited by nwavesailor - 3/9/14 at 12:21pm
post #29594 of 30826
Quote:
Originally Posted by Dubstep Girl View Post

Not sure on 5v4g, but to me, the cv593 is superior to the sophia in everything but soundstage. And maybe bass, but sophia has more one noted bass

 

Agreed.  In my WA6 (now long gone), the Sophia was a starting point-- but the CV593 and GZ34s were superior in nearly every single way.  The metal base GZ34 was my favorite.  I did a lot of a-b testing.  

 

The Sophia didn't sound bad.  The others simply sounded better.  The metal GZ had the best extended bass of the lot, and handled decay better than any of the other rectifiers.

post #29595 of 30826

Very interesting information, thanks for bringing this too my attention, I will read this later on, thanks again!

 

Quote:
Originally Posted by nwavesailor View Post
 

Sorry Joseph!

 

Yes, 'X' (AFAIK) is reported to be Sittard production and the other link with the history and great pics indeed does list in error. I think it is still a good GZ24 guide even though that production code was in error. It is NOT however, UK production at any rate even though the listing may say so or even the printing on the tube may say so. Go with the etched (or between the pins)code

 

Oh well, the internet is only as good as the accuracy of the info in a posting.................

 

No matter where it was made, it is still the next version of production right after the metal base.

No problem, either way I hope I enjoy the sound of this tube, and I think this is a reasonable price for this tube, because I really don't think I would spend close to the price of the amp for a tube. From most of the replies I've gotten about this tube, most seem too enjoy it. Thanks.

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