One more source for buying, selling, and trading of antique electronic
parts is Antique Radio Classified magazine.  It is published monthly
out of Massachusetts and is about 3/4 classified ads, both 'for sale'
and 'wanted' categories.

It is a very well done magazine (usually 100 pages), and Mr. Ricco
could then sell those tubes himself if he so desires.  A sample copy
can be requested from them: it's worth having one around just for the
ads!  See their web site at  http://www.antiqueradio.com/

I'm glad to see that Mr. Ricco understands the value of these tubes.
As a rebuilder of not only player pianos, but antique radios too,
I appreciate his effort.  (Right now I have three Philcos on the bench
and wishing I had a type 84 tube handy!)

I sure wish someone would set up a version of MMD for radio restoration
people.  If anyone out there has seen something like this, please let
me know.  The wealth of information on the MMD is outstanding!

Eric Bergstrom
St. Charles, Il