2. amps-preamps
  3. 1085626942

Question about BC21 6sn7 tubes

I was wondering if someone out there could direct me to a reference that would explain to me the differences between the various 6sn7 tubes. I just bought a BC21 and am new to tubes. Is a 6sn7 the same as a 6sn7w, 6sn7gta, 6sn7gtb, vt-231?

I did a search in the forums and found some bc21 owner's favorite 6sn7 tubes from which I can kind of deduce substitutions but thought maybe there was a more definitive list somewhere.

Many thanks in advance.
tooter
albertporter's avatar
albertporter
4,949 posts
 
Tooter, here are some great threads from the Audiogon archive.

http://forum.audiogon.com/cgi-bin/fr.pl?htech&1080270591&read&keyw&zz6sn7

http://forum.audiogon.com/cgi-bin/fr.pl?aamps&1074754467&read&keyw&zz6sn7

http://forum.audiogon.com/cgi-bin/fr.pl?aamps&1065381540&read&keyw&zz6sn7

http://forum.audiogon.com/cgi-bin/fr.pl?aamps&1062024987&read&keyw&zz6sn7

Hope this helps.
nutella
223 posts
 
Here's another good one.
http://home.att.net/~chimeraone/6sn7sound.html
sugarbrie
3,854 posts
 
Nutella's link is my favorite...

Owning a BC21 myself for many years (and currently in my secondary system) my favorites are...not in any order...

Tung-Sol VT-231
Ken-Rad VT-231
Sylvania 6sn7W (short bottle).

Dennis Boyle's descriptions on that website are very accurate to my ears...
More to discover