difference between chinese tubes

[rashayritto]

so i got a chinese 12ax7 for my valve jr and turns out the stock tube was a chinese 12ax7B, i've also heard mention of chinese 12ax7C's

whats the difference between these particular tubes?

 

[agent007]

Re: difference between chinese tubes

check out groovetubes.com. they have a little information that will give you a good idea. look at the different tube descriptions.

 

[rashayritto]

Re: difference between chinese tubes

i'll do that, thanks