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Double spin pendulum

Published 27 februari 2020 by BAussems
This pendulum makes a rare double spin movement

Last month I made a Pendulum with the following features:

  • 25 centimeter high suspension point.
  • Very low friction suspension point with magnet
  • Needle with weight touches glasplate
  • Magnet is hanging in horizontal direction
  • Ultra low power consumption, 20uA.
  • Pulse coil is also magnet sensor.
  • Solar panel and SuperCap energy supply
  • Simple construction and electronics
Electronic circuit and construction details
This video shows more details of the construction and operation

Read more posts about DIY Projects

One Comment

  1. Janis Alnis Janis Alnis 3 april 2025

    Hi!
    Soldered your circuit.
    3994 transistor emiter and collectir swapped. Emiiter at GND is correct.
    Like energy recovery with LED.

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