This video by an amateur radio operator visually steps through the process of manually making a triode vacuum tube.
For those vacuum tube aficionados among you, if you can't quite find the right triode for your application, why not make your own? Here's a video (17 min) by Claude Paillard, a French amateur radio operator, who visually shows you how (complete with a jazzy music soundtrack):
The video also shows a test of the transfer curves of the finished device, as well as its operation in an actual circuit.
One of the excellent edu video i've ever seen,it's wonderful to see a v'tube come to life in a not so big ordinary workshop.Highly educational & piratical value in general.
As a v'tube user in late 60's I was extremely pleased to see it WORKING in the DIY kit radio.(TRF?)
Any way more & more audio enthusiasts coming to appreciate v'tube quality over s'condt devices.
January 2016 Cartoon Caption ContestBob's punishment for missing his deadline was to be tied to his chair tantalizingly close to a disconnected cable, with one hand superglued to his desk and another to his chin, while the pages from his wall calendar were slowly torn away.122 comments