Are manufacturers still making new audio equipment (etc.) that uses vacuum tubes? - Quora
Tung-Sol Power New Vacuum Tubes — Parts Connexion
Replacing all vacuum tubes in a color TV with new old stock tubes, except the CRT, which is the only used vacuum tube. Then playing Super Mario Kart, Street Fighter II Turbo,
There is a worldwide panic on availability of vacuum tubes”: EHX's Mike Matthews on the murky future of valve amps