Like tubes/valves? Feast your eyes on this lot, then follow the link...
http://lampes-et-tubes.info/index-e.htm
The 'Links' section is well worth browsing too...if you're in or near Belgium it looks like a worthwhile trip, but only two visitors at a time...I can see why!! (Appointment required).
The next time I'm in Europe I plan to make a visit - but who knows when that may be...
Steve A.
And last (here) a 256-bit memory...if you're drooling, join the club!!...do visit the website, I've already spent hours there and following links...and getting nothing else done!!