greg or anyone... do you know what the heater voltage should be for this tube?

thanks
mike

I found it listed as 6S31B... the naming conversions from the Russky to the English don't always seem intuitive to me.

here's a page that I can't make heads or tails of what with the non-Englishness.

And here are the results from the tube search page I so adore.

And here is the tube search page in general. Great resource, very comprehensive and such.

It even has this section here (available from that main page) that helps with converting Cyrillic into English.

Hope there's something helpful in there.

thanks, unfortunately no useful info. the first link seemed hopeful, but i couldn't find the info i needed.

thanks

mike

found it with a Google search.

http://www.tubes.ru/techinfo/GlassTubes/6s31b.html

Looks like the 6 in the beginning of the name means the mostly-standard 6.3V.

It may be worthwhile getting someone to actually check this with an original power supply under load. I have a different Russian valve mic which uses a 6.3V heater, but it is underheated at something like 4.5V for technical reasons (not just to extend valve lifespan).

Rodabod wrote:I have a different Russian valve mic which uses a 6.3V heater, but it is underheated at something like 4.5V for technical reasons (not just to extend valve lifespan).

What mic? you didn't tell me anything about some russian valve mic!
congrats on the mic!

eliya wrote:What mic?

Oh, it's just one of those Oktava MKL2500s. I got it because it was only £50 and I couldn't resist. It's actually quite good for some sources, although not very natural sounding. Simple cathode follower design (like quite a few Russian valve mics are). I have an M7 type capsule which I plan to try in it and see how it sounds. If I can figure out how to mount it.

scott wrote:found it with a Google search.

http://www.tubes.ru/techinfo/GlassTubes/6s31b.html

Looks like the 6 in the beginning of the name means the mostly-standard 6.3V.

thanks. that helps. what is this google? is it like a kerble?