[rudra]

Those are Russian equivalent of the 6AS7. Some time ago I purchased a set of 4 OTK winged C for $40. 5998 have a dimpled plates.

 

[artemart]

Does any one know where I can find a review TA-274 vs WE-274?

 

[Badas]

Does any one know where I can find a review TA-274 vs WE-274?

There is bits of information floating around. I have a couple of TAK274's but haven't listened to a WE-274. So no comment.

The only member who has is Simon (isquirel). Posts are somewhere on this thread. He compared using a Woo WA234. He said the TAK was a step above the WE-274.

 

[tejanolibre]

Thank You Kindly,
 
TL
 
What is your opinion on the quality and the year of manufacture ?

 

[Badas]

Thank You Kindly,

TL

What is your opinion on the quality and the year of manufacture ?

Hi,

I'm a bit confused. Are you asking me the quality of the TAK274B and date manufactured?

 

[tejanolibre]

Absolutely not !
The Japanese unit is without question a very good tube.

I was wondering about the Russian garbage that I have pictured in my hand.

I apologize for the lack of information.
TL

 

[ghhf]

Having my WA5 open box over a month, I managed to have the collection tubes loaded on my WA5 and prepare to experience the first test drive listening …..Now time to power up and ready to rock!

 

 

 

 

 

 

 

 

[Badas]

^
 
Wow! nice tubes (and amp).

 

[ru4music]

  ^
 
Wow! nice tubes (and amp).

 
x2!

 

[shapeshifter44]

  First thing I would do is disconnect the source. If the buzz goes away then maybe it isn't the tubes.
I have an Oppo hooked to both a WooWA5 and also to a PrimaLuna Dialogue Integrated.
I get a buzz from the PrimaLuna but the Woo is dead quiet.
I figured out if I remove the ground from the Oppo the buzz disappears. Even though all 3 units are plugged into the same outlet.
Might be worth a try.

Thanks so much. After I connect my amp directly to wall, the noise greatly reduced. I am using HD600 and I can barely hear noise in Low now but sometimes still can hear noise in High. Is that because HD600 is not suitable for High? 

 

[Badas]

  Thanks so much. After I connect my amp directly to wall, the noise greatly reduced. I am using HD600 and I can barely hear noise in Low now but sometimes still can hear noise in High. Is that because HD600 is not suitable for High? 

Are your tubes fairly fresh (new)?
They can change with time. Some tubes buzz for a while then settle.

 

[shapeshifter44]

 
Are your tubes fairly fresh (new)?
They can change with time. Some tubes buzz for a while then settle.

Yes I am lol. My problem is that the noise (which is tolerable though) keeps existing, without source.

 

[Badas]

  Yes I am lol. My problem is that the noise (which is tolerable though) keeps existing, without source.

It's a high chance that it's the tubes themselves. What amp? What tubes?
 
Can you throw up a pic to help me out?

 

[Leotis]

High setting might not be right for your phones.
Here is a link for settings for a variety of headphones with WA5.
 
https://parttimeaudiophile.com/2015/09/27/review-woo-audio-wa5le-v2-vacuum-tube-headphone-amplifier/
 
Looks like Senheiser is lo power, hi impedance, lo level.
Wrong setting might be a reason for any residual noise.

 

[Leotis]

Why an adapter for the Tung Sol 6SN7?