They have books, schematics, etc. They sell vacuum tubes, etc. We are a suplier of electron tubes and much more. They carry Nixie tubes. Sell, Buy, Trade.
All tubes listed are more or less new condition, untested.
I've weeded out the ones with obvious cathode sputtering on the envelopes, cracked glass, bent pins etc. Triodes 4 . I run a small firm selling all kinds of tubes, both audio, RF and professional tubes. Including many rare european types. If so, we have put together a list of 138 Tube Dealers.