There's actually a lot of info available out there. I myself had a lot of experience with Russian tubes from the time I was SP6GBU.
I also helped ND2X to collect a very large number of links to sites with Russian PA's. See this at:http://www.nd2x.net/index.html
You can also check the link to the very good Krasnodar web site. You can find the link on my page:http://www.qsl.net/ve3abx/links.html
(look for Homebrewing in Krasnodar.
Almost everything there is in Russian.
No problem though. Look for the link to the translator at the bottom of my page with links. It isn't perfect but will definitely help.
73 VE3ABX, Janusz