Vacuum tubes

[Ohiogoldfever]

I have several hundred tubes I got in a large pick up. I have looked into selling them with little success. I’m curious if anyone is aware of pm recovery from tubes? Clearly not a one size fits all situation, I’m just trying figure out if any might be worth investigating further.

 

[Baator]

There are tubes interesting for tube audio lovers and they are happy to buy some models of tubes. If you have already researched these options and did not find buyers, then you can start processing. Tubes have been produced in thousands of names in some models there are Au, Ag, Pd, Pt and Ta, often these are heating grids (Au, Au + Pd plating) or Pt% solder and tantalum in rods / holders.