Table of Contents
Advertisement
Flashing LED
22
Door 22 hides a larger capacitor with 22
µF (22 microfarad). It is an electrolytic
capacitor (electrolytic capacitor) that has
a positive pole and a negative pole. Make
sure you install it in the right direction.
The negative pole has a shorter wire and is
marked with a white line. A microfarad is
1,000 times larger than a nano-farad. 22 µF
is therefore 220 times more than 100 nF . Put
the electrolytic capacitor in the circuit of the
last day. This turns the tone generator into
a slow flashing light. If the speaker is still
connected, you will hear a slow click.
This circuit can also be used as an alarm
system. The schematic shows a dashed line
representing a cable that may or may not
be available. If you install a cable between
the base and emitter of the right transistor,
you'll turn off the flashing light. This cable
is your alarm loop. Tie it to a door or a
window with a thread; when it is opened,
it is pulled out. This way you can see the
alarm. If you use the small capacitor with 10
nF , the alarm becomes audible.
The oscillator
A circuit that generates vibrations independently is also called
an oscillator. Oscillators are important circuits in electronics and
computer technology. In a computer, many components work in
common mode. This beat is generated by an oscillator, much like
a conductor conducts an entire orchestra with his baton.
Advertisement
Table of Contents
