[URL=http://www2u.biglobe.ne.jp/~tossie/contents-E.010106.html]Here[/URL]
The 811A is my absolute favorite. Didn't know they were still making such tubes. They look cool and "vintage".
This little beauty is also still in production and used by the very brave in a couple of SETs. http://www.tubecollector.org/833a.htm And from another website where a similar thread is running,some absolute gems... http://www10.big.or.jp/~dh/ It's worth looking at the amplifier gallery,and the link to another set of gems on that page.
Holy Guacamole Batman. Wouldn't fancy replacing one of those when it went west ... or pay for the leccy bills
Lol, here's some porn from that direct-heating website: http://www10.big.or.jp/~dh/gallery/pic/kiyo.html Talk about Zero-WAF DT