don't forget the capacitors [which may be influenced by the specific tube requirements] - 12V solid state vibrators are fairly easy to find, but I can't imagine how many different places you'll have to deal w/ to find the correct individual pieces!
could start w/ watching e-bay, and there's a ring of old radio folks:
http://o.webring.com/hub?ring=antiqueradio and here's places you might inquire:
https://secure.tubesandmore.com/ http://www.justradios.com/ have you made it work on the bench w/ 6V?
Bill
