2a3 alternative after NOS burning

ziocalepino · 27th March 2012, 01:58 PM

Hi everybody. An accident occours to me recently. I've bought a pair of 50's years Fivre 2a3. I've mounted on my Class A single end amplifer and after half an hour one of them burned.

A part the disappoint for this, I've decided never more buy NOS tubes.

So the matter is: which an I mount? I've seen at least these brands, in ascending price order:

- Sovtek
- Electro Harmonix
- Golden Dragon
- JJ Tesla
- Shuguang
- Emission labs Mesh
- KR

I use a pair of Acousta 116 cabinets with Lowther PM6C mounted and I listen classic and Jazz music.

Any help is really welcome.

Thanks

Ziocalepino

Vinylsavor · 27th March 2012, 02:19 PM

Hi!

Don't get frustrated because of one such incident. Tubes can fail no matter if NOS or new manufacture. Better check the amp if there might be a fault which caused the tube to burn. The get another nice Fivre 2A3 and enjoy.

Best regards

Thomas

Osvaldo de Banfield · 27th March 2012, 02:35 PM

Quote:

Originally Posted by Vinylsavor

Hi!

Don't get frustrated because of one such incident. Tubes can fail no matter if NOS or new manufacture. Better check the amp if there might be a fault which caused the tube to burn. The get another nice Fivre 2A3 and enjoy.

Best regards

Thomas

I agree. NOs and new ones can fail in the same amount.

ziocalepino · 27th March 2012, 02:40 PM

Maybe this is true but when it occours with a 60 years old "lady" I'm sad....
Another thing is that I've mounted a pair of "humble" Sovtek and they sound quite well. But I'm looking for something better...

Alexontherocks · 27th March 2012, 04:09 PM

I am sorry to hear that but NOS 60 year old is still 60 year old. Tubes are not eternal. Air does get in over time and the tube does receive a fair amount of physical punishment being manipulated over a period of 6 decades.

Not even a tested tube is guaranteed against sudden failure.

Golden dragon are chinese and so are shuguang. I think you might want to look at electro harmonix but persoally I think golden dragon are still pretty good for their price range.

Alex

kevinkr · 27th March 2012, 04:16 PM

Take a look at the TJ 2A3 globes, they're pretty good. (AKA Full Music if NOS)

limono · 27th March 2012, 05:09 PM

That reminds me of a pair of NOS Globe 45's I bought with high hopes and for hefty price . They lost emmision shortly after , and yes I burned the filaments overnight , ouch it still hurts. Somehow the memory of money on countless bottles of Scotch I drank since then (ten folds more) don't hurt in my memory like those small accidents with tubes

ziocalepino · 27th March 2012, 05:25 PM

TJs seem diffucult to be found, speaking of ebay. I have no idea if in Italy there are resellers. I'll try.
For chinese brands I think there are lot of truth and lot of lies about quality. Surely prices are not so high. Shuguang with carbon deposit inside cost 250 euros per pair. No SO much.

Alexontherocks · 27th March 2012, 05:39 PM

golden dragon, as I stated earlier, are quite good for what you pay them. If anything they are quite reliable.

ziocalepino · 27th March 2012, 07:57 PM

Right Akexontherocks, a friend of mine wants to try them too. And are really not expensive. I'll try them.

27th March 2012, 01:58 PM	#1
ziocalepino diyAudio Member Join Date: Mar 2010	2a3 alternative after NOS burning Hi everybody. An accident occours to me recently. I've bought a pair of 50's years Fivre 2a3. I've mounted on my Class A single end amplifer and after half an hour one of them burned. A part the disappoint for this, I've decided never more buy NOS tubes. So the matter is: which an I mount? I've seen at least these brands, in ascending price order: - Sovtek - Electro Harmonix - Golden Dragon - JJ Tesla - Shuguang - Emission labs Mesh - KR I use a pair of Acousta 116 cabinets with Lowther PM6C mounted and I listen classic and Jazz music. Any help is really welcome. Thanks Ziocalepino

27th March 2012, 02:19 PM	#2
Vinylsavor diyAudio Member Join Date: Feb 2002 Location: Lindau	Hi! Don't get frustrated because of one such incident. Tubes can fail no matter if NOS or new manufacture. Better check the amp if there might be a fault which caused the tube to burn. The get another nice Fivre 2A3 and enjoy. Best regards Thomas __________________ http://vinylsavor.blogspot.com/

27th March 2012, 04:16 PM	#6
kevinkr diyAudio Moderator Join Date: Sep 2004 Location: Boston, Massachusetts Blog Entries: 6	Take a look at the TJ 2A3 globes, they're pretty good. (AKA Full Music if NOS) __________________ "Extraordinary claims require extraordinary evidence." - Carl Sagan

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27th March 2012, 02:40 PM	#4
ziocalepino diyAudio Member Join Date: Mar 2010	Maybe this is true but when it occours with a 60 years old "lady" I'm sad.... Another thing is that I've mounted a pair of "humble" Sovtek and they sound quite well. But I'm looking for something better...

27th March 2012, 04:09 PM	#5
Alexontherocks Account disabled at member's request Join Date: Jul 2009	I am sorry to hear that but NOS 60 year old is still 60 year old. Tubes are not eternal. Air does get in over time and the tube does receive a fair amount of physical punishment being manipulated over a period of 6 decades. Not even a tested tube is guaranteed against sudden failure. Golden dragon are chinese and so are shuguang. I think you might want to look at electro harmonix but persoally I think golden dragon are still pretty good for their price range. Alex

27th March 2012, 05:09 PM	#7
limono diyAudio Member Join Date: Mar 2007	That reminds me of a pair of NOS Globe 45's I bought with high hopes and for hefty price . They lost emmision shortly after , and yes I burned the filaments overnight , ouch it still hurts. Somehow the memory of money on countless bottles of Scotch I drank since then (ten folds more) don't hurt in my memory like those small accidents with tubes

27th March 2012, 05:25 PM	#8
ziocalepino diyAudio Member Join Date: Mar 2010	TJs seem diffucult to be found, speaking of ebay. I have no idea if in Italy there are resellers. I'll try. For chinese brands I think there are lot of truth and lot of lies about quality. Surely prices are not so high. Shuguang with carbon deposit inside cost 250 euros per pair. No SO much.

27th March 2012, 05:39 PM	#9
Alexontherocks Account disabled at member's request Join Date: Jul 2009	golden dragon, as I stated earlier, are quite good for what you pay them. If anything they are quite reliable.

27th March 2012, 07:57 PM	#10
ziocalepino diyAudio Member Join Date: Mar 2010	Right Akexontherocks, a friend of mine wants to try them too. And are really not expensive. I'll try them.

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