Hand made triode


[Claude Paillard] makes his own triodes (google translated) for short wave radios. The site doesn’t have a lot of details itself, but links to entire books on the history of radio tubes and manufacturing of them.  [Claude] takes us through the entire process of building a triode in a 17 minute long video. Even if you aren’t into them, this is fascinating. From the looks of it, several of us might only be a pump or two short of being able to cobble one together.

[thanks Dieter]


  1. zigzagjoe says:
  2. rvisokey says:

    Looks like new hacks are starting to run very thin…

  3. andrew says:

    deja vu.

  4. torx93 says:

    I knew I’ve seen this before!

  5. sanchoooo says:


  6. grizball says:

    hack-a-day pwnd

  7. Max says:

    Yeah i remember this from a while back.
    That spot welder is really tits.

  8. Patman says:

    just shy of a week away from being a year after the first!

    hmmm… coincidence?

  9. ula says:

    andrew, fuck off

  10. Bags says:

    That music is giving me deja vu. It’s not even a full track but its looped for 12 minutes.

  11. hrf says:

    yeah…. but ive always ben wondering.. whats the name of the song he loops in the background of the movie?? i need to know. its been killing me!

  12. steve says:

    Geeze, don’t you guys read your own site? I knew as soon as I saw the picture that this was the same hack as before. It’s a good one but still can’t you search your own site before posting?

  13. phil says:

    nice stuff.

  14. micah says:

    Sweet, that is an awesome video.

  15. -hero says:

    dude that was such a calming video i watched the hole thing just fr art sake.


  16. el tejon says:

    It is like watching someone tie a fly…. amazing patience and skill. Very relaxing.

    And the music is Gershwin. I think… specifically… The Man I Love.

  17. happypinguin says:


  18. kabukicho2001 says:

    Soon homemade transistor!

  19. I’ve been doing transistors for a year or so now. It took about 2 years to find a process that can be done at home.

    Here is my setup I took to a conference and we made solar cells, single FETs and an inverter.


    This is an inverter:


    This is a quick talk I gave at metalab explaining the basics.

  20. octelcogopod says:

    it’s the ‘slashdot disease’

  21. greenyooper says:

    Holy machine shop, Batman! No wonder he has so many jigs and rigs. I especially like the way he doesn’t wait for the mill to stop before reaching for the cutting tool. I though he was going to lose a finger there.

    P.S. Thanks for resurrecting this one, I probably wouldn’t have ever come across it otherwise.

  22. Pouncer says:

    So this is, a repost. I kinda thought so, but still very cool. I don’t have the equipment to do this, but if I did I would definitely make my own.
    I didn’t even see the video this time around, but I know the song, and it’s stuck in my head..lol oh well at least it’s a soothing song.

  23. glum says:

    “Soon homemade transistor!”

    This has two. http://www.flickr.com/photos/jeriellsworth/sets/72157607161498665/

  24. Neolin says:

    next time i see a blown tube im gonna cry

  25. Caleb Kraft says:

    Hrm… it appears that it is a dupe. It happens. Send us more hacks to post!

  26. henk says:

    Homemade transistors?

    Now that’s hackworthy!

    Not saying that this isn’t tho.

  27. Tachikoma says:

    I was fairly impressed when I first saw this on hack a day a while back, and still is today.

    Re. home made transistors, you can just about make one yourself using a pair of safety pins and chunk of galena. Not exactly precision stuff, but it is possible. Hobbyists were doing similar stuff with crystal sets for nearly a century.


  28. jimmys says:

    “Hrm… it appears that it is a dupe. It happens. Send us more hacks to post!”

    That’s not your job?

  29. danieljlouw says:

    I’m from the Future. This was posted again in the year 2013!

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