electronic pendulum (perhaps more correctly - electro - mechanical) will introduce our young designer in the issue of gravity and the pendulum. May give rise to the construction of a fairly accurate clock. (See the "New Toys" J. Wojciechowski)
instructions for building:
- electrical system is very simple - a schema
- coil: two sections (excitation and labor) approximately 2000 conjunction DNE 0.1 and about 200 - 300 zw. DNE 0.15 - 0.2,
- pendulum with a length of several centimeters with neodymium magnet with a diameter of about 20 - 30 mm - a thickness of 5 - 15 mm,
- to the system (the collector circuit) are included in the LED and the speaker - speaker emits sounds deceptively like the ticking of the clock machanicznego - 20k potentiometer adjust the intensity and pitch, and "momentum" of the pendulum.
Mocowanie wahadła
Wahadło o całkowitej długości 280 mm ma częstotliwość wahań 1Hz. Na dole wahadła zamocowana jest nagwintowana tuleja żelazna wkręcana na śrubę wciśniętą w 4 mm rurkę mosiężną (umożliwia to regulację długości wahadła). Do tulejki przymocowany jest magnes 18x10 mm
new items with ME - and the speaker coil pendulum
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiF6uNXhYqzOXQARoRrgOyCXW_Fj1mbxH5UsHqzEMAowV2kgs4Z12rya26NM_dwP-DBK80BaHiVswt6pT4ZP3m6-T6BL0p7eaqB-gkGnlb5ykpgb5oj3ou2zIjuhMj32m3zma606UhiyTPN/s400/wahad%C5%82o+003.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgl37BMqaJK25z2JN4kzBNx0vcENVhBUQ-dtTCIHteCibWqjp-a8TrrgvHQp74gganj2U1zBlZSdHLE5UAkF6iT7UE5xo2PdTWSi4srvkysSpI18PAouNCXJuU9NGT7Tq87Vl3aBLKrmlpv/s400/wahad%C5%82o+002.jpg)
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