Post by Peter Wieck
I am looking for multi-section "empties" - that would be the can and the phenolic wafer - so I can stuff them myself without the cutting-and-gutting otherwise necessary.
Anyone aware of a source?
Thanks in advance!
I have to wonder if you can buy these components from someplace that
fabricates paper tubes and paper disks. When you manufacture things in
large quantities you can often just have some "cardboard stamper" build
whatever you want. The 'Assman' catalogue might even have something.
Yeah, 'Assman'. No seriously.
(you can probably find something i whatdver country you are in, they are
something else that I think would be even MORE useful (to me) would be
the kinds of gear you'd need to "roll your own tubes".
Not only would be awesome for restoring and/or replicating old radios
and TVs, it would also be useful for developing new kinds of vacuum
tubes that could be used for things that nobody considered 60 years ago
when tube research was (more or less) at its peak.
I did some study on the glass/metal barrier. It looks like silver wire
might be the simplest, but most tubes use a chemically treated copper [I
forget what you do to it to make the copper oxide layer correct but it's
somewhat simple] hut you need "the right kind of glass" that has a
thermal expansion coefficient that's similar to the metal you pass
through it AND wets nicely onto it to provide a correct seal.
So yeah you'd need a source for that, too. And getter materials. And
nitrogen purge zones for building the electrodes and stuffing the glass
envelope. And a "hard vacuum" pumping system. Etc.
(aka 'Bombastic Bob' in case you wondered)
'Feeling with my fingers, and thinking with my brain' - me
'your story is so touching, but it sounds just like a lie'
"Straighten up and fly right"