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post #1801 of 1814

Some of the Mitcham made Mullard 6080's I have used had the flasher on cold start feature.  

post #1802 of 1814

 

These arrived yesterday. Samples from the nice guys at Langrex. I will review soon.

 

They have 3 micra's and one top getter. Arrived NIB and NOS. Such excellent condition. Tubes are manufactured crooked as hell. I guess they didn't care about that in the day. I kinda like it as it gives them character.

 

I have made a number of changes to my system in the last week. Most importantly the DAC. So I will let my system burn in and settle so I can get a baseline. I will compare to the Bendix 6080, Tung-Sol 7236 and Chatham Tung-Sol 6AS7G (my favorite).

post #1803 of 1814

 

Burning in the Mullard's now. First impressions are very good. Early days only got 10 hours on them. I will report back later next week.

post #1804 of 1814

Hi,

I'm new, and not a tube roller per se since my AtmaSphere amp topology doesn't seem sensitive to tube type.  I thought I'd pass on a recommendation, however, for an EBay seller in Ukraine that I recently had success with:  http://stores.ebay.com/ranutek/

 

I have no affiliation, just happy that the 25 6N5S tested tubes arrived safely and in about 3 weeks from the Ukraine.  I have not verified all of them, but 8 of the 25 plugged in and worked perfectly.

 

AC

post #1805 of 1814
Quote:
Originally Posted by ACHiPo View Post
 

Hi,

I'm new, and not a tube roller per se since my AtmaSphere amp topology doesn't seem sensitive to tube type.  I thought I'd pass on a recommendation, however, for an EBay seller in Ukraine that I recently had success with:  http://stores.ebay.com/ranutek/

 

I have no affiliation, just happy that the 25 6N5S tested tubes arrived safely and in about 3 weeks from the Ukraine.  I have not verified all of them, but 8 of the 25 plugged in and worked perfectly.

 

AC


Hhhhmmm,

 

I purchased 20 of these from a Ukrainian dealer 3-4 months ago. They were a disaster. No vacuum. Lots of blue flares and crazy noise.

 

It might have been a different dealer. I had to throw mine away.

post #1806 of 1814
Quote:
Originally Posted by Badas View Post
 


Hhhhmmm,

 

I purchased 20 of these from a Ukrainian dealer 3-4 months ago. They were a disaster. No vacuum. Lots of blue flares and crazy noise.

 

It might have been a different dealer. I had to throw mine away.

That's why I posted this--just trying to give what seems to be a good guy some good press.  Did you try to get a refund from your guy?

 

There are a lot of Ukrainian dealers.  I'd heard a lot of bad stories, but Ralph Karsten of AtmaSphere seemed to think it is still the best source.  I had my fingers and toes crossed.  

 

While they provided a tracking number, I couldn't actually get tracking information, so it was a total surprise when they showed up.  This  guy claimed he tested all of them on a L3-3 tester.  I was skeptical, but paid the ~$1/tube premium and pulled the trigger.  I expected 25% fall out just from gassy tubes, but as I said 8 of 8 were great.

 

He has some pairs and quads available if you want to test out a smaller qty.  Alternatively AtmaSphere sells them for $25 tested and guaranteed.

post #1807 of 1814
I find this useful for tracking Russian tube shipments: http://www.russianpost.ru/tracking20/English.htm
post #1808 of 1814
Quote:
Originally Posted by GrindingThud View Post

I find this useful for tracking Russian tube shipments: http://www.russianpost.ru/tracking20/English.htm

Good to know for future reference.  Unfortunately these came from Ukraine and were sent via Ukraine Post.  I tried a bunch of tracking sites, all showed the package as in the system, but none showed the location.

post #1809 of 1814
Quote:
Originally Posted by ACHiPo View Post
 

That's why I posted this--just trying to give what seems to be a good guy some good press.  Did you try to get a refund from your guy?

 

There are a lot of Ukrainian dealers.  I'd heard a lot of bad stories, but Ralph Karsten of AtmaSphere seemed to think it is still the best source.  I had my fingers and toes crossed.  

 

While they provided a tracking number, I couldn't actually get tracking information, so it was a total surprise when they showed up.  This  guy claimed he tested all of them on a L3-3 tester.  I was skeptical, but paid the ~$1/tube premium and pulled the trigger.  I expected 25% fall out just from gassy tubes, but as I said 8 of 8 were great.

 

He has some pairs and quads available if you want to test out a smaller qty.  Alternatively AtmaSphere sells them for $25 tested and guaranteed.

 

I just looked it up. Yes I have purchased two lots of Russian tubes. Both were different dealers.

 

I purchased a quad set from a guy that said they were matched to 0.6%. I don't know if they were matched to 0.6% (probably not) but two out of the four were very noisy. So out of all the purchase I ended up with one pair. I don't think I would bother with that tube again.

 

In saying that I have had the same luck with the RCA 6AS7G. I just have one quiet set out of many sets I have purchased.

 

I have some very good sets of Tung-Sol, Chatham, Raytheon and Salvania 6AS7G's. Plus Bendix, Mullard (I'm using now), GE 6080 and Tung-Sol 7236.

 

I should be okay for a while.

 

The Mullard 6080 is coming along nicely. Seems to do nothing wrong and a lot of things very well to great. A all round good performer.

Seems to be the King of nothing but a close second on most qualities.

post #1810 of 1814
Quote:
Originally Posted by Badas View Post
 
Quote:
Originally Posted by ACHiPo View Post
 

That's why I posted this--just trying to give what seems to be a good guy some good press.  Did you try to get a refund from your guy?

 

There are a lot of Ukrainian dealers.  I'd heard a lot of bad stories, but Ralph Karsten of AtmaSphere seemed to think it is still the best source.  I had my fingers and toes crossed.  

 

While they provided a tracking number, I couldn't actually get tracking information, so it was a total surprise when they showed up.  This  guy claimed he tested all of them on a L3-3 tester.  I was skeptical, but paid the ~$1/tube premium and pulled the trigger.  I expected 25% fall out just from gassy tubes, but as I said 8 of 8 were great.

 

He has some pairs and quads available if you want to test out a smaller qty.  Alternatively AtmaSphere sells them for $25 tested and guaranteed.

 

I just looked it up. Yes I have purchased two lots of Russian tubes. Both were different dealers.

 

I purchased a quad set from a guy that said they were matched to 0.6%. I don't know if they were matched to 0.6% (probably not) but two out of the four were very noisy. So out of all the purchase I ended up with one pair. I don't think I would bother with that tube again.

 

In saying that I have had the same luck with the RCA 6AS7G. I just have one quiet set out of many sets I have purchased.

 

I have some very good sets of Tung-Sol, Chatham, Raytheon and Salvania 6AS7G's. Plus Bendix, Mullard (I'm using now), GE 6080 and Tung-Sol 7236.

 

I should be okay for a while.

 

The Mullard 6080 is coming along nicely. Seems to do nothing wrong and a lot of things very well to great. A all round good performer.

Seems to be the King of nothing but a close second on most qualities.

Damm, your really not lucky with your russian tubes i have 6 different types of russian tubes  from 6N23P's to 6H13C and never had a problem with them ,touch wood ,

post #1811 of 1814

I have bought hundreds of these Russian tubes over the years and other than one delivery with 3 breakages and 4 missing (quickly refunded) I have never had a duff one. Generally they are excellent tubes. My last noisey 6AS7G / 6080 was an GEC but think it just needs a clean :) Pretty rare stuff in general.

post #1812 of 1814
Quote:
Originally Posted by MIKELAP View Post
 

Damm, your really not lucky with your russian tubes i have 6 different types of russian tubes  from 6N23P's to 6H13C and never had a problem with them ,touch wood ,

 

Yeah. My last sets were from the most expensive seller on ebarf and advertised that matching to 0.6%. I thought I would get decent tubes. Well they were. The seller had taken so much care to write down all the testing results and tubes were in beautiful condition. One set was golden. The others I burnt in for at least 50 hours. They were not improving but getting worse. Very noisy.

 

I just won't bother with them again. There is better tubes.

 

Quote:
Originally Posted by Nic Rhodes View Post
 

I have bought hundreds of these Russian tubes over the years and other than one delivery with 3 breakages and 4 missing (quickly refunded) I have never had a duff one. Generally they are excellent tubes. My last noisey 6AS7G / 6080 was an GEC but think it just needs a clean :) Pretty rare stuff in general.

 

I would agree. I have had bad luck. My first batch were no doubt seconds. They should not have been sold. I bet they were made and disreguarded as seconds. Just some doggy seller picked them up and sold. It happens. Second batch were a lot better and I had a 50/50 result. So not that bad.

 

I have also had a bad run with RCA 6AS7G. I purchased 4 sets and got one set that is useable.

 

I'm not upset. Who cares. I have just had a bad run.

post #1813 of 1814
Quote:
Originally Posted by MIKELAP View Post
 

Damm, your really not lucky with your russian tubes i have 6 different types of russian tubes  from 6N23P's to 6H13C and never had a problem with them ,touch wood ,

 

 

so far mine are all good from eastern europe too... crossing my legs :P

post #1814 of 1814

I can put in a good word for the east also , positive experiences from Russia , Ukraine , Bulgaria and Romania . Postage times have been a bit of a lottery but everything has turned up eventually .

Like Badas I have also had a batch of noisy RCA 6as7g tubes so I go for the CRC USN 6080 if I want to use RCA , never had a bad one of those and they are super cheap

One 5998 from a local that was completely dead in one half , he took it back without any hassle

Was buying WE421a tubes for a while they have all been perfect I have a nice stash of early 60's NOS but the prices have gone crazy lately so that adventure is over

Hunting Chatham 6520's lately they are very nice and still quite cheap

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