Manual

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This is the electronic bird circuit that you built for
Project 6 (The Woodpecker), but now it has a
p
hotoelectric control of the transistor base. This
c
ircuit is activated by light, so you can use it as an
early bird wake up alarm.
To make the sound of the bird, press the key. You
can modify the control so that the right amount of
light will set off the bird and wake you up in the
morning – not too early and not too late.
From the original electronic bird, we have changed
only a few component values, and rearranged the
circuit schematic. See if you can find the changes and
rearrange the circuit so that it looks like Project 6. Use
the space provided to redraw the schematic.
Notes:
EXPERIMENT #63: “THE EARLY BIRD GETS THE WORM”
Schematic
Wiring Sequence:
o 1-29
o 2-30
o 3-107-109
o 4-27-137
o 5-41-110
o 15-88
o 16-28
o 76-87-106-40
o 119-42-115
o 75-116
o 105-108
o 120-138
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