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GZ32 Marked Mullard. I have a few of these NOS that . .

172.56.81.223
Posted on February 11, 2023 at 10:14:13
John PA
Audiophile

Posts: 4019
Location: The lower 48.
Joined: August 27, 2000












I always thought were Mullard but didn't look hard at them. I have 9 NOS. Gave one to a friend years ago show put it in a circuit for a GZ34 and fried the tube. To me they look like Miniwatt Dario. What do you think?


iBasso DX300MAX Ti. Focal Utopia and Stellia. iBasso SR2. Mr. Speakers, Ether II, Voce stats. Manley, Absolute headphone amp. LTA MZ3, Z10e electrostatic amp. Many other headphones, amps, cables etc.

 

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RE: GZ32 Marked Mullard. I have a few of these NOS that . . , posted on February 11, 2023 at 11:49:18
sony6060
Audiophile

Posts: 1465
Location: USA
Joined: August 8, 2014
 Tubes look like a 5V4G.

 

I looked some more and they look like these, which are GX32. . , posted on February 11, 2023 at 12:12:47
John PA
Audiophile

Posts: 4019
Location: The lower 48.
Joined: August 27, 2000



from a tube site. And this seems to match the Dario Miniwatt.


iBasso DX300MAX Ti. Focal Utopia and Stellia. iBasso SR2. Mr. Speakers, Ether II, Voce stats. Manley, Absolute headphone amp. LTA MZ3, Z10e electrostatic amp. Many other headphones, amps, cables etc.

 

And I found that R7 is for GZ32 .., posted on February 11, 2023 at 12:14:30
John PA
Audiophile

Posts: 4019
Location: The lower 48.
Joined: August 27, 2000
 when searching for more information. So yes, 5V4G type.



iBasso DX300MAX Ti. Focal Utopia and Stellia. iBasso SR2. Mr. Speakers, Ether II, Voce stats. Manley, Absolute headphone amp. LTA MZ3, Z10e electrostatic amp. Many other headphones, amps, cables etc.

 

Easy to confuse 5V4G and GZ32..... , posted on February 11, 2023 at 12:44:12
andy evans
Audiophile

Posts: 4382
Joined: October 20, 2000
 .... especially when all the markings are rubbed off.

If in doubt assume the valve is a 5V4G and thus lower power. There are fakes about and you can be misled.

 

R7 U FA shsound designate . . , posted on February 11, 2023 at 12:54:22
John PA
Audiophile

Posts: 4019
Location: The lower 48.
Joined: August 27, 2000
 it as a GZ32. They all measure extremely good. Both halves being almost exactly the same for current draw and rectifier measurement.






iBasso DX300MAX Ti. Focal Utopia and Stellia. iBasso SR2. Mr. Speakers, Ether II, Voce stats. Manley, Absolute headphone amp. LTA MZ3, Z10e electrostatic amp. Many other headphones, amps, cables etc.

 

RE: Easy to confuse 5V4G and GZ32..... , posted on February 15, 2023 at 08:37:29
Sibelius
Audiophile

Posts: 1369
Location: S.F. Bay Area
Joined: April 4, 2000
 It was awhile ago, but I bought a JAN Philips 5v4g from Charlie of Vacuum Tube Valley (RIP). Evidently it was actually a "mislabeled" 5AR4, not by him, but Philips or whoever stamped the box. Whether intentional or not I don't think anyone ever confirmed. I remember there was some discussion here about it, but I can't seem to find the thread.

I don't use the preamp it was installed in any longer, but when I had it repaired the tech said it was still in perfect condition 10 years after I bought it.

 

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