Making a Triode Tube by Hand

The following video shows a triode tube (“valve” for those across the pond) being made by hand. Incredible.

Update: YouTube has quite a few videos on tube making. The following video is not as artistic as the one by F2FO, but explains the process.

The following link is to an old film from the Philips – Mullard tube factory:

Hat tip: sewatt.com (registration required).