I just got my self one, used, and I'm thinking of buying new tubes for it 
But I'm kind of lost, I know a few companies by name, JJ, sovtek etc, but I have no idea as to what to get. So, any suggestions?
I'll probably buy them from thomman, here's the link
http://www.thomann.de/gr/cat.html?gf=ecc_83_vacuum_tubes&oa=pra
The engl cost 25 euro
so I'm thinking of sovteks, but which ones? What are the differences between the three?
Thanks in advance!

But I'm kind of lost, I know a few companies by name, JJ, sovtek etc, but I have no idea as to what to get. So, any suggestions?
I'll probably buy them from thomman, here's the link
http://www.thomann.de/gr/cat.html?gf=ecc_83_vacuum_tubes&oa=pra
The engl cost 25 euro

Thanks in advance!