Question about Replacing a 6sn7

[Sasha18]

Hi all. One of the tubes in my integrated amp has a scratchy static sound coming through. I'm pretty sure it's the tube, because I swapped the left and right and the problem seemed to migrated over. Right now, I'm using sovtek tubes. It makes sense to buy a new pair. I know the tube is a 6sn7. And there's a second set of numbers - 6h8c. Does that mean I cannot use any of the NOS RCA/Sylvania/Raytheon 6SN7 tubes available on epay? It has to be a 6sn7 6h8c? I'm rather new to the world of tubes.

(It's a Nuera integrated, which was a house brand sold through partsexpress, made by TangBand)

 

[Pio1980]

Generic 6SN7 of any make should be good for you.

Sent from my SM-N900V using Tapatalk

 

[heyraz]

6h8c is the Russian designation.

I like the vintage American military versions of 6sn7 and am a big fan of VT-231 (smoked glass) and GL-5692 (Red Base). You must however check the datasheets against how much voltage your amp will put into the tube.
Check it out.....
http://www.enjoythemusic.com/magazine/equipment/0304/6sn7.htm
http://www.head-fi.org/t/159143/mini-review-various-6sn7-tubes

 

[Trio]

If cathode to plate voltage is within the spec for the 6SN7 (it should be) you should have no issue. Just make sure your negative test lead is attached to the cathode and not the chassis.

 

[Sasha18]

Wow! Cool Links.
Thanks.