Re: [EE] DIY vacuum tubes by "Alan B. Pearce" .

>> >From another list I'm on... >> >> ---------- Forwarded message ---------- >> >> How to make your own vacuum tubes. Watch all of this. Really. >> >> http://dailymotion.alice.it/video/x3wrzo_fabrication-dune-lampe-triode_tech > >Amazing. Sure is. And yet the only really complex bit is the glass blowing. Most of the rest of it is choosing the correct materials for the job. >skill like that isn't as common as it used to be. Sure does >make you appreciate how much WORK it is just to build a diode, >the most basic of active components. But it also wouldn't be too hard to expand on his work to make tetrodes and pentodes. But the most complex would probably be to make an indirectly heated cathode.