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  1. bertus

    Life After Layoff

    Hello, And now on to electronics. Bertus
  2. bertus

    Electronics seems like magic!

    Hello, This thread did run long enough. Bertus
  3. bertus

    Electronics seems like magic!

    Hello, That video is fake, as many videos on youtube. You can not get any voltage with same metals. Also the power will be very less, in the order of miliwatts or even less. This wiki page shows you the lemon battery: https://en.wikipedia.org/wiki/Lemon_battery Bertus
  4. bertus

    And now something weird

    Sales of AI-enabled teddy bear suspended after it gave advice on BDSM sex and where to find knives https://edition.cnn.com/2025/11/19/tech/folotoy-kumma-ai-bear-scli-intl
  5. bertus

    NEED HELP making 4-bit adder/subtractor in Logisim

    @bruceatacesaeromed : Necro thread from 2018 -> closed Please stop with digging up old threads.
  6. bertus

    need help for making a tiny transmitter and its tiny receiver

    @bruceatacesaeromed : Necro thread from 2015 -> closed
  7. bertus

    Swissonic quadphone - headphone amplifier - schematic

    Hello, It is strange to feed an 7812 with 12 volts. I would expect an input voltage of 15 volts. The 10 volts on the 5532 is the lower supply limit. The NE5532 needs a single supply minimum of 10V (below): Bertus
  8. bertus

    Replacement transistor help needed

    Hello, Use the attach files button below the reply box to upload the picture. Bertus
  9. bertus

    Replacement transistor help needed

    Hello, The closest i could find is the cef85n75: https://alltransistors.com/mosfet/transistor.php?transistor=16554 Bertus
  10. bertus

    Presentation disasters

    It's part of the job.
  11. bertus

    Presentation disasters

  12. bertus

    Presentation disasters

  13. bertus

    Presentation disasters

  14. bertus

    Comedy Thread

  15. bertus

    Comedy Thread

  16. bertus

    Comedy Thread

  17. bertus

    Electronics seems like magic!

  18. bertus

    Comedy Thread

  19. bertus

    Need Help Understanding Voltage Drop in My DIY Power Supply Circuit

    Hello, How much current does the motor draw? When the output current rises, the voltage drop on the regulator rises. Does the input voltage drop when the output voltage drops? Bertus
  20. bertus

    Comedy Thread

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