45
In Fig.3.22b) one can see the connections and also the structure of the LEDs
within its enclosure.
The cathode has a shorter connection wire and the metal end within the
transparent enclosure has the shape of a triangle. In the figure you can see
how the LEDs are plugged into the bread board. For an easier overview the
red LED is pictured apart on the right side. One also can recognize the
contacts of the bread board (in rows of five) and their vertical connections
(in grey).
Mounting of the experiment:
Components as before, additional: one red LED, one series resistor 100
Ohm. It makes sense to use the LEDs only in combination with a series
resistor to avoid their destruction when there is a high rotation and therefore
a high voltage of the generator.
In the first experiments the generator is used separately from the steam
engine. You can make the LEDs flash by using your thumb and index finger
and turn the axis of the generator strongly. With the correct mounting of
this simple circuit, in each direction only one LED flashes. F. ex.: right
turns the red LED, left turns the orange one (or opposite around). If both
LEDs are flashing when turning in one direction, then one LED is wrongly
plugged in.
Fig.3.23: Composition of the
bread board, 2 LEDs, anti-
parallel,
series
resistors,
cables with crocodile clips,
generator
Summary of Contents for D100E
Page 1: ...1 A b b 2 2 1 M o nt a g e d es K es se ls Steambox D 100 E E Box E 50 ...
Page 2: ...2 ...
Page 6: ...6 ...
Page 27: ...27 Fig 2 3 2 Steam engine of the Steam Box with generator ...
Page 28: ...28 ...
