Dont remember them but it has a ring to it. Looked up 6JV6
but its a 9 pinner. Being a 33 volt it may have been used
in a series string low end HiFi. I dont see why a TV or anything
else would use what must have been hefty tube power wise.
How is it used ? As an output in push pull ? Home brewers often
use odd ball tubes that nobody wants to save $$$$.
Very interesting........
73 Zeno
