I'll put them all in one spot since they are all similar.
I will keep updating it as I find them all again.
Of course, we'd have none of this without the genius of Nikola Tesla.
http://www.tesla-museum.org/meni_en/nt.php?link=tesla/t&opc=sub1This page links to all manner of Tesla stuff including DIY Tesla Coils etc.
http://www.eskimo.com/~billb/tesla/tesla.htmlAll sorts of free circuits in here.
Mad Aussies.......
http://tesladownunder.com/Audio, guitar amps etc........military stuff.........I've never got through it all!
http://www.freeinfosociety.com/electronics/schemcat.phpJohn Broskie's Guide to Tube Circuit Analysis & Design.............lots of tube stuff.
John's a great thinker on this stuff...........miles of reading here.
http://www.tubecad.com/Aussie valve supplier and circuits.
http://evatco.com.au/data.htmlRod Elliott's great audio site.
You can buy boards for his projects from him too.
http://sound.westhost.com/index2.htmlFender, Ampeg and Marshall parts plus heaps of vale bits and pieces.
Good shipping from the US.
http://www.tubesandmore.com/