Philips Miniwatt GZ34 Metal Base made in Holland with a Erik Akerlund & Ruben Rausing box

[acousticsguru]

FYI(scroll down to see the rectifier comparison): https://jeffsplace.positive-feedbac...-san-alan-sans-gec-px25-monaural-sets-part-2/

Sophia Electric EL34-ST tubes

Sophia Electric EL34-ST tubes

positive-feedback.com

Needless to say, when I said top three above I meant for Lampizator DACs. The Marconi is wonderful, as is WE 274b and 422. It doesn’t make much sense to refer to a single one of these very finest as “Holy Grail“ for two reasons: synergy plus the fact some literally cannot be used in some gear e.g. because filter capacitor values.

Greetings from Switzerland, David.

 

[acousticsguru]

Anyone willing to pay the cost of a metal base GZ34 should look for a U52 instead. Prices are similar but the U52 superior to the metal base GZ34 in all significant parameters.

See, that is what I meant above: an NOS U52 (maximum reservoir capacitor 16µF) would have an extremely short life in e.g. a Decware amp. If there was a “Holy Grail” rectifier, it would have to be “fits all applications”.

Greetings from Switzerland, David.

 

[tedwoods]

The box is from the Swedish Army stock. I have several top notch tubes in similar boxes.

 

[marty]

I've been using a NOS Amperex GZ34 in my Lampi GG2 for a few weeks. It is outstanding. I never would have thought such incredible sound could come from this mighty little rectifier. Highly recommended. FWIW, it takes 2-3 days to break-in and show its stuff. By 7 days, it was singing,

 

[Steve Williams]

Has anyone compared Philips Miniwatt GZ34 Metal Base. to the Shuguang gz480

 

[acousticsguru]

Has anyone compared Philips Miniwatt GZ34 Metal Base. to the Shuguang gz480

Norman has, but his GZ34 Metal Base didn't sound anything like a couple of others we tried. Having said that, isn't the GZ480 out of production?

Greetings from Switzerland, David.

 

[Steve Williams]

Norman has, but his GZ34 Metal Base didn't sound anything like a couple of others we tried. Having said that, isn't the GZ480 out of production?

Greetings from Switzerland, David.

It is temporarily as I heard there was a fire at the Shuguang factory but I obtained a brand new one from a dealer in China. I love this tube and was interested in a comparison from anyone

 

[acousticsguru]

It is temporarily as I heard there was a fire at the Shuguang factory but I obtained a brand new one from a dealer in China. I love this tube and was interested in a comparison from anyone

Christoph and I have been looking for GZ480, but not luck. I know Norman is quite enthusiastic about it.

Greetings from Switzerland, David.

 

[Steve Williams]

as I said I did a search and found a dealer in China who advertised the tube but said "out of stock" I emailed them and asked when they might expect the tube. He replied immediately and said "out of stock does not mean unavailable". He got me a brand new one and I received it in under a week

 

[marty]

Christoph and I have been looking for GZ480, but not luck. I know Norman is quite enthusiastic about it.

Greetings from Switzerland, David.

FWIW- big difference in price between these 3 sources

SG GZ480 tube 1pcs

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Dawning electron tube GZ480 high power rectifier tube king temperament straight generation 274B 5U4G

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[adrian cheng]

As far as I know, the famous Metal Base was only made in The Netherlands from 1954-57 (should mention I've read 1951-58 more than once, but have come to doubt this is correct, as I've never seen one outside the aforementioned 4-year span), regardless of what the rebranding on them might say, and that includes the Mullard, which clearly state "Made in Holland" on them. Some of the later bakelite base GZ34s, the earliest of those being the so-called "Fat Base" (straight bottle), were made in the Blackburn factory.

View attachment 78314

Greetings from Switzerland, David.

This one was made in 1952

 

[acousticsguru]

This one was made in 1952

Cool! Thanks for providing photo „proof“!

Greetings from Switzerland, David.

 

[adrian cheng]

Cool! Thanks for providing photo „proof“!

Greetings from Switzerland, David.

You're welcome,David
My GZ34

 

[acousticsguru]

You're welcome,David
My GZ34

And I used to think I’m a hoarder…

Seriously, that’s some collection you have right there! WOW!! Congratulations!

Greetings from Switzerland, David.