• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Tube data for current manufacturers?

Data for new valves by current manufacturers seems to rely on old datasheets.
I can't seem to find any cuurent data on Sovtek valves, for example - 5881/6L6WGC. What I have found is old data that says the 5881 has a peak Ua of 360V and the 6L6GC has a peak Ua of 500V.
The Sovtek 5881/6L6WGC is one tube. Any clues as to where i can get current datasheets from Sovtek and others that don't have obvious websites?

Thank you,

P.S. - Perhaps I have missed something, but I can't seem to find a search function on this forum - lots of browsing? (I've not logged in for a long time)

P.P.S. - I've found the forums search at the bottom :)