The Vacuum Tube Workshop is now a semi-real enterprise and a few attendees have tried their hand at building tubes. The enthusiasm has been gratifying and all of the courageous early folks have come back for more. One of them, Trevor, has gone as far as to start a forum dedicated to the hobby of DIY tubes. It's a nascent entity, but with some proper nurturing it may become a nexus for others that are interested in this hobby. I'm going to transfer some of the information that has accumulated here at the Workshop over to that site. Trevor's forum should be much more engaging and informative than this website will easily allow. I hope you'll join us over there and possibly add to the growing pool of tips and techniques.
The forum is at: http://diyvacuumtubes.com
Build your own triode vacuum tube
Vacuum Tube Workshop