By Julian

Youtuber, shed dweller, solar charge controller aficionado

17 thoughts on “Very simple electronics: circular blue led kit build”
  1. Avataaar/Circle Created with python_avatars Donald Henke says:

    your videos are .

  2. Avataaar/Circle Created with python_avatars bestamerica says:

    '

    hi J…

    this kit can work with 24 LED lights and 6 volts

  3. Avataaar/Circle Created with python_avatars bestamerica says:

    '
    hi J…
    can this LED circular kit spin backward as reverse or not

  4. Avataaar/Circle Created with python_avatars Richard Smith says:

    One transistor needs to be deliberately 'out of spec' for the whole timing to have predictable behavior.

  5. Avataaar/Circle Created with python_avatars Kenneth Nicholson says:

    Oooo, I could stick this under my shirt to replace my dodgy ticker, then the kids will think I'm Iron Man, lol.

  6. Avataaar/Circle Created with python_avatars John Piper says:

    @Julian llett – What do you use to secure the PCB board? What is it called and where do you get it? That is a great idea! Thanks. 🙂

  7. Avataaar/Circle Created with python_avatars Kiko Kiki says:

    Hi. IT is posible to make IT slower flashing and how please

  8. Avataaar/Circle Created with python_avatars Koromaru Da Demmono Doggo says:

    DEFFECT IN THE LEDS !!!!!!!!!!!!!!!!!

  9. Avataaar/Circle Created with python_avatars Pascal Högström says:

    you should buy the Knipex 78 03 125 😀 great side cutter for fine electronic work

  10. Avataaar/Circle Created with python_avatars Ron Thompson says:

    Cool.video ,I don't have that one ,yet ,have you seen the fm modules ,on eBay I type in on eBay search fm modules ,and found some cool modules and some cool kits ,that might interest you.

  11. Avataaar/Circle Created with python_avatars Brian Henning says:

    Very nice video Julian

  12. Avataaar/Circle Created with python_avatars Dart Gar says:

    How would you go about building Jerry Anderson's Terra hawks robot face with LEdDs?

  13. Avataaar/Circle Created with python_avatars M Harding says:

    The reason I believe for the 1 transistor being slightly different… without looking at the datasheets of the two types I would assume, that the 2 same have a very slightly higher base trigger voltage. That would give the oscillator a starting point so that the timing is near perfect.

  14. Avataaar/Circle Created with python_avatars Dave Rhodes says:

    Such a good tutorial many thanks

  15. Avataaar/Circle Created with python_avatars Jerry Ericsson says:

    I built a kit the other day here in the RV, parked in the Mojave Desert near Needles California (Home to Spike, Snoopy's brother!) It contained those blue Resistors that are so damn hard to read, so I laid them out, and tested each with my component tester, then soldered them in. Went like a charm, and the device performs as advertised, I now have a nice little oscilloscope built by me, for me. It works a bit better then the little one I built from a Nano, it does a job when needed but the new one is much nicer.

  16. Avataaar/Circle Created with python_avatars Network XIII says:

    Great video, Julian. I remember back in the 90s when blue LEDs were expensive, glad to see that they aren't anymore.

  17. Avataaar/Circle Created with python_avatars KFaang says:

    not mostly lead :/

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