Explore Science 88-90147 User manual

#88-90147
User Manual
ELECTRONIC
72+Science workshop SET
AGES
8+
NOT INCLUDED
x4
Do not mix old and new batteries. Do not mix alkaline,
standard (carbon-zinc), or rechargeable (ni-cad, ni-mh, etc.) batteries.
Non-rechargeable batteries are not to be recharged.
Please recycle batteries responsibly.
CHOKING HAZARD — Small parts.
Not for children under 3 years.
WARNING:
This product can expose you to chemicals including
lead, which is known to the State of California to cause
cancer and birth defects or other reproductive harm.
For more information go to www.P65Warnings.ca.gov.
WARNING:

P. 1
Experiment 1- Color filter
Experiment 2- Color filter in parallel with red LED light
Experiment 3- Red and green LED light
Experiment 4- Diode and capacitor charging/discharging
Experiment 5- LED light
Experiment 6- Basic circuitry of LED light
Experiment 7- Timer electric color filter
Experiment 8- Time-delay electric color filter
Experiment 9- Sound control color filter
Experiment 10- Touch-mode color filter
Experiment 11- Alternate working of LED light and electric color filter
Experiment 12- Speed-adjustable electric color filter
Experiment 13- Direction-change indicator
Experiment 14- Rain indicator
Experiment 15- LUX indicator
Experiment 16- Connection indicator
Experiment 17- Light control stop-and- spin electric color filter
Experiment 18- Magnet control stop-and- spin electric color filter
Experiment 19- Manual control stop-and- spin electric color filter
Experiment 20- Light control extinguish-and-light LED
Experiment 21- Magnet control extinguish-and-light LED
Experiment 22- Manual control extinguish-and-light LED
Experiment 23- Double-Switch control LED light
Experiment 24- Practical super dimmable LED light
Experiment 25- Super manual control delayed LED
Experiment 26- Super magnetic activated delayed LED
Experiment 27- Touch control delayed extinguishing LED
Experiment 28- Light control activated LED light
Experiment 29- Super LED light activated by darkness
Experiment 30- Light control extinguish-and-light super LED light
Experiment 31- Adjustable and blow-able super LED light
Experiment 32- Manual control extinguish-and-light super LED light
Experiment 33- Water droplet activated simulated motor sound with LED
Experiment 34- Water droplet activated simulated ship sound with LED
Experiment 35- Water droplet activated simulated delayed motor sound
with LED
Experiment 36- Magnet control motor dory sound with red LED
Experiment 37- Magnet control motor dory sound with green LED
Experiment 38- Magnet control ship sound with LED
Experiment 39- Magnet control electronic metronome with LED
Experiment 40- Manual control electronic metronome with LED
Experiment 41- Manual control motor dory sound with red LED
Experiment 42- Manual control motor dory sound with green LED
Experiment 43- Manual control ship sound with LED
Experiment 44- Manual control delayed motor dory sound
Experiment 45- Magnet control delayed motor dory sound
Experiment 46- Manual control metronome
Experiment 47- Multitone producer
Experiment 48- Magnet control multitone producer
Experiment 49- Manual control multitone producer
Experiment 50- Electronic cicada
Experiment 51- Light control creaking sound
Experiment 52- Ship sound
Experiment 53- Adjustable flashing LED light
Experiment 54- Magnet control adjustable flashing LED light
Experiment 55- Morse code training kit
Experiment 56- Boresome humming
Experiment 57- Automobile’s “di-di” sound
Experiment 58- Hoofbeat
Experiment 59- AM radio receiver with mute function
Experiment 60- Big voice AM radio receiver with volume control
Experiment 61- Magnet control AM radio receiver with volume control
Experiment 62- Daylight activated AM radio receiver with volume control
Experiment 63- Darkness activated AM radio receiver with volume control
Experiment 64- Big voice FM radio receiver
Experiment 65- Big voice FM radio receiver with volume control
Experiment 66- Daylight activated FM radio receiver with volume control
Experiment 67- Darkness activated FM radio receiver with volume control
Experiment 68- Big voice AM/FM radio receiver with volume control
Experiment 69- Simple impact amplifier
Experiment 70- Magnet control FM radio receiver with volume control
Experiment 71- Touch control FM radio receiver with volume control
Experiment 72- FM radio receiver with mute function
Experiment 73- Magnet control auto-sensor
72+ EXPERIMENTS
COMPONENTS IN THIS KIT
Description
72 in 1 Circuit Board Unit
Magnetic pole
Connecting wire
Instruction Manual
Quantity
1pc
1pc
10cm x 10pcs, 20cm x 10pcs, 30cm x 10pcs, 40cm x 2pcs
1pc
WARNING
Adult supervision and assistance is required. This unit is only for use by children aged 8 years
and older. Not suitable for children under age 3 years old due to small part(s) and component(s)
– CHOKING HAZARD. Read and follow all instructions in the manual before use. This toy contains
small parts and functional sharp points on components. Keep away from children under age 3
years. Please retain the information and this manual for future reference. Instructions for parents
are included and have to be observed. WARNING! Not intended for children under 8 years. This
product contains (a) small magnets(s). Swallowed magnets can stick together across intestines
causing serious injuries. Seek immediate medical attention if magnet(s) are swallowed. Warning.
Do not use close to the ear! Misuse may cause damage to hearing.
We take pleasure to welcome you to try out this ready-to-use electronic circuit kit suitable for
children of 8 years old and up. “You’ll be amazed”to nd what you can learn as the experiment is
a realistic concept of electronics and electricity. It will denitely enable you to learn about the
necessary electronic components, circuits, and theories as well as the basic electronics principles
– electricity, voltage, current, resistance, magnetism, other electrical circuits and theories.
It is alright if you have no knowledge about electronics and do not fully understand how all the
experiments work. Once you get started you will be able to build your understanding through
experimenting and maybe trying out some interesting experiments on your own.
This electronic circuit kit contains more than 72 experiments, and it is smartly designed that the
main circuit board unit has all the relevant electronic components included. All you have to do
is simply connect the wires according to the wiring sequence of each experiment and follow the
steps one by one. Once connected the circuit will activate and function.
Remember this is not a one-time experiment. The more you spend on building the experiments
the better knowledge you will gain. You will never get bored but totally engaged as you will
discover more new exciting experiments for a few years to come.
WARNING : Only for use by children aged 8 years and older. May over heat.
2. 3.1.
To insert batteries please unscrew battery cover with a screw driver. Insert the required
batteries in accordance with battery polarity with + and – ends in the right position
and then x screw on the battery cover to close the battery compartment case.
Use 4 x AA size batteries (not included). For best performance, always use fresh batteries and
remove batteries when not in use. Batteries must be inserted with the correct polarity.
Non-rechargeable batteries are not to be recharged. Re-chargeable batteries are only to be
charged under adult supervision. Re-chargeable batteries are to be removed from the toy before
being charged. Dierent types of batteries or new and used batteries are not to be mixed.
Exhausted batteries are to be removed from the toy. The supply terminals are not to be
short-circuited. Only batteries of the same or equivalent types are to be used. Do not dispose of
the batteries in re. Do not mix old and new batteries Do not mix alkaline, carbon zinc and
re-chargeable batteries
BATTERY INFORMATION
Before setting up any experiment, please double check and make sure all wiring connections
you have made are correct before inserting the batteries and switching on the unit as failure
may result in damage to components or circuit board units. When experiment is finished,
make sure the batteries are disconnected and switch off the unit before you clear away the
wires. Do not apply any components or parts to the experiment other than those provided
with this kit. If this product malfunctions or "locks up", try switching off and back on again or
removing and re-inserting batteries. Do not lock the motor or other moving parts. Otherwise
it may cause overheating. The toy is not to be connected to more than recommended
number of power supplies.
CAUTION!
Insert batteries only after assembling and wires are connected.
ELECTRONIC
72+Science workshop SET

P. 2
Note : Remember to untie the string which ties the ying disc/color lter ( if
available ) to the motor before starting experiment. When the motor is rotating,
do not use anything to touch the motor.
Note for Color lter: When installing the color lter onto the motor, make sure
the 3 recess areas at the bottom of the color lter t to the top of the motor
properly. You may need to ddle with the color lter a bit until you see the 3
recess areas are tted to the 3 protrusions on the top end of the motor. In case of
improper installing, the color lter may ap o in operation and cause harm.
• Complete all wiring connections as
indicated in the sequence. By switching ON,
the color lter will rotate, and red LED will
light up; By switching OFF, the color lter
will stop, and red LED will extinguish.
Experiment 2
Color lter in parallel with red LED light
Wiring Sequence
2-6-52, 51-39, 1-76, 5-77-38
• Complete all wiring connections as
indicated in the sequence. By switching
ON, the color lter will be activated for
rotating.
Experiment 1
Color lter
Wiring Sequence
2-6, 5-77, 76-1
• Complete all wiring connections as indicated
in the sequence. By switching ON, both red
LED and green LED will light up. By switching
OFF, both LED will extinguish.
Experiment 3
Red and green LED light
Wiring Sequence
2-52, 51-37-39, 1-76,
77-36-38
• Complete all wiring connections as indicated in the sequence. By switching ON,
green LED will light up, and the capacitor will be charged. By switching OFF, green
LED will extinguish. And then press the push switch. Capacitor will discharge to red
LED and make it bright for a
while. When the discharge
ends, the capacitor has used
up stored electricity and
thus red LED will extinguish.
Experiment 4
Diode and capacitor charging/discharging
Wiring Sequence
2-76, 50-51-77, 75-49-45, 39-46, 37-52, 1-36-38-74
• Complete all wiring connections as indicat-
ed in the sequence. By switching ON, LED
will light up. By switching OFF, the LED will
extinguish.
Experiment 5
LED light
Wiring Sequence
2-3, 4-35, 34-77, 1-76
• Complete all wiring connections as
indicated in the sequence. By switching
ON, both red LED and large green LED will
light up. When pressing on the push
switch, red LED will extinguish, but large
green LED will keep on glowing. This
circuitry can be used for switching
between weak light and strong light.
Experiment 6
Basic circuitry of LED light
Wiring Sequence
1-34, 2-3, 35-38-46, 45-39-77, 4-76
• Complete all wiring connections as
indicated in the sequence. By
switching ON and pressing the push
switch, the color lter will spin. At the
same time, the capacitor will be
charged. When the push switch is
released, the circuit is disconnected,
but the color lter will still keep on
spinning for a while. This is because
the capacitor will discharge and
release its stored electricity, thus the
color lter will still spin for a while.
Experiment 7
Timer electric color lter
Wiring Sequence
2-29-45, 30-28, 27-58, 73-57-46, 6-31, 1-77, 5-26-72-76
• Complete all wiring connections as indicated
in the sequence. After switching ON for a
time period, the color lter will start to spin.
This delay is due to the charging of the
capacitor. During the charging, the base
electrode of the transistor is in a low voltage
so that the transistor is shut. When the
capacitor is charged fully, the transistor is in
its conducting condition, thus the color lter
will spin. The time-delay period is the
duration of the charging.
NOTE: Every time when you perform this experiment once, remember to “discharge”
the capacitor before doing it again. Otherwise it won’t work properly. To “discharge”,
connect any wire to 72-73 for a second. This way the electricity stored in the capacitor
will be “discharged” and then the experiment can work properly again.
Experiment 8
Time-delay electric color lter
Wiring Sequence
2-60-29, 28-30, 65-59,
27-64, 63-73, 72-5-26-76, 6-31, 1-77
6563
64 27
2826
29
31
30
73 72
100μF
2
1
65
M
-
+
59 60
100KΩ
76 77
WIRING SEQUENCE AND CONNECTION
Ensure all wires are correctly connected to the numbered spring terminals of the main circuit
board unit as stated wiring sequence of each experiment.
Bend the spring terminal over and insert the exposed shiny conductor part of wire into spring
terminal. Make sure the wire is securely connected to spring terminal.
For example if the wiring sequence is 4-33, 1-10-32-35, 2-12, then connect a wire between spring
terminal 4 and 33; and then connect a wire between spring terminal 1 and 10, and a wire
between spring terminal 10 and 32, and a wire between spring terminal 32 and 35; and nally
connect a wire between spring terminal 2 and 12. This is an example for reference only, not an
exact circuit connection in the experiment.
If the circuit does not work, you can check the wire and spring terminal connection whether it is
not well connected or insulated plastic part of the wire is inserted to spring terminal.
5 6
77 76
2
1
5 6
51
100Ω
52
77 76
2
1
3938
100Ω
51 52
77 76
2
1
38 39
36 37
43
34 35
77 76 1 2
100μF
57 58
10KΩ
27
30
45467372
7776
6 31 295
21
2826
34
4 3
1 2
35
77 76
3839
4645
The overall aim for this electronic circuit kit is for you to get a better understanding of
how connecting different wiring sequence will make different science experiments.
Each experiment is targeted at different basic concept of electronics & electricity.
Please make sure to read carefully and all wires are correctly connected in the indicated
diagram in order to have each experiment work.
Objective :
3839
7475
3637
7677
52
2
51
1
49 50
46 45
100Ω

P. 3
• Complete all wiring connections as
indicated in the sequence. Adjust the
variable resistor to the minimum value.
Then switch on the main switch. Step by
step, adjust the variable resistor slowly
and try to blow to the microphone. You
will nd a point which the color lter will
only be triggered by your blowing to
spin. This is the desired setting for this
experiment. Now you can clap loudly
near the microphone, or make a deep blow to the microphone, or get close to the
microphone and speak loudly towards it to trigger the color lter to spin.
WARNING: Do not let the color lter keep on spinning non-stop, as color lter
keeps on spinning may cause components to overheat in this experiment. So
remember to switch o the main switch to stop the color lter.
Experiment 9
Sound control color lter
Wiring Sequence
3-76, 4-33-51-54-15, 32-6, 64-49-25, 52-65, 28-50-53,
27-58-14, 5-26-57-63-77
27
2826
3332
25
65
M
-
+
7677
57 58
10K
Ω
53 54
1K Ω
6563
64
5152
100 Ω
4
3
14 15
50 49
• Complete all wiring connections as indicated
in the sequence. Switch on the main switch
and touch the touching-plate with your nger.
The circuit will be connected and the color
lter will begin to spin. If touching the
touching-plate does not show anything, dampen your
nger with water before touching will make it work. And
remember to wipe the water o the touch plate after you
remove your nger from it.
Experiment 10
Touch-mode color lter
Wiring Sequence
2-29-48, 47-27,
28-30, 6-31, 1-77, 5-26-76
47 48
27
2826
2931
30
2
1
65
M
-
+
76 77
• Complete all wiring connections as
indicated in the sequence. Switch on
the main switch and adjust the
variable resistor slowly to a suitable
position. LED and electric color lter
will work alternately. The frequency of
the alternation can be changed
according to the adjusting of the
variable resistor. Adjusting the variable resistor to its maximum, the electric color
lter will spin and LED will extinguish. Adjusting the variable resistor to its
minimum, the electric color lter will stop and LED will light up.
Experiment 11
Alternate working of LED light and electric color lter
Wiring Sequence
2-29-51-50, 49-37,
1-77, 52-65, 28-30, 27-64-75,
74-36-31-6, 5-26-63-76
27
2826
29
31
30
2
1
6 5
M
-
+
76 77
55 56
5.1KΩ
6563
64
• Complete all wiring connections as
indicated in the sequence. Switch on the
main switch. Adjust the variable resistor
slowly. This will change the control
voltage of the transistor. Thus the
spinning speed of the color lter will
change. Utilizing this principle can get a
speed-adjustable electric color lter.
Experiment 12
Speed-adjustable electric color lter
Wiring Sequence
2-29-56, 55-65, 64-27, 28-30, 6-26-31, 1-77, 5-76-63
• Complete all wiring connections as indicated in the
sequence. Switch on the main switch. Drop a drop
of water on the touch-plate, then red LED will light
up and green LED will extinguish. Wipe the water o
the touch-plate. Then green LED will light up and
red LED will extinguish. This circuit can be used for
rain indicating or water-level warning. When it rains
or water-level goes beyond warning level, red LED
will light up, green LED will extinguish. Otherwise
red LED will extinguish and green LED will light up.
Experiment 14
Rain indicator
Wiring Sequence
2-76, 77-48-39-52, 47-27, 51-38-37-28, 1-26-36
7776
36 37 38 39
5251
2826
47
27
48
21
• Complete all wiring connections as indicated in
the sequence. Switch on the main switch. Turn
the variable resistor to minimum. Red LED will
light up and green LED will extinguish. Turn the
variable resistor to maximum. Green LED will light
up and red LED will extinguish. This principle can
be used for indicating the change of direction of
automobile, as dierent direction will cause
dierent LED to light up and extinguish.
Experiment 13
Direction-change indicator
Wiring Sequence
1-76, 65-39-28-2,
77-31-36-63, 64-55, 56-30-27, 26-29-37-38
55 56
26 28
31 29
36 37
77 1 276
38 39
6563
64 30
27
• Complete all wiring connections as indicated in
the sequence. Switch on the main switch. Green
LED will light up while red LED will not. Shade the
Light Sensor a little bit, green LED will become
dimmer. Shade the Light Sensor a bit more, then
green LED will extinguish and red LED will start to
light dimly. When the Light Sensor is covered
completely, green LED will extinguish and red
LED will light up completely. This principle can be
used as light indicator, to reect the amount of
light shining on the indicator.
Experiment 15
LUX indicator
Wiring Sequence
2-76, 77-62-37-52, 61-59-27, 51-39-36-28, 1-26-38-60
• Complete all wiring connections as indicated in the
sequence. Switch on the main switch. Green LED will light
up and red LED extinguish. Press the push switch. Red LED
will light up and green LED extinguish. This principle can be
used for indicating the break/connect of circuit: When the
door, car-door or window is closed, this is just like the push
switch is being pressed, and thus red LED lights up while
green LED does not. When the door, car-door or window is
opened, this is just like the push switch is released, and thus
green LED lights up while red LED does not.
Experiment 16
Connection indicator
Wiring Sequence
2-76, 77-58-39-52, 46-59-27,
51-38-37-28, 1-26-36-60, 45-57
27
100KΩ
60 59 46 45
57 58
10KΩ
525128
26
38 3936 37
777621
• Complete all wiring connections as indicated in the
sequence. Switch on the main switch, then the
color lter will spin. Now cover the light sensor
completely. The color lter will stop spinning for a
while. However, after keeping on covering the light
sensor for a time period, the color lter will
suddenly start to spin again! If you uncover the
light sensor, then the color lter will spin even
faster for a while! After some time, the spinning
speed will gradually be back to normal. Covering
the light sensor again will stop the spinning again
and the process mentioned above can be repeated.
Experiment 17
Light control stop-and- spin color lter
Wiring Sequence
1-76, 6-31, 62-60-29-2,
28-30, 27-72-59, 61-58-73, 5-26-57-77
• Complete all wiring connections as indicated in the
sequence. Switch on the main switch, then after a
while the color lter will spin. Access the reed switch
with the magnetic pole. The spinning speed will be
changed for a while, and gradually back to the
original spinning speed. Remove the magnetic pole,
and then the spinning will stop for a while. After
waiting for some time, the spinning will resume
again like it did at the beginning of the experiment!
Experiment 18
Magnet control stop-and- spin electric color lter
Wiring Sequence
1-76, 6-31, 60-29-21-2,
28-30, 27-72-59, 20-58-73, 5-26-57-77
2931
30
27
2826
A
-
+
2
1
76 77
5152
100 Ω
36
75 74
6563
64
5
6
5049
IN4004
470μF
27
28
26
29
31
30
57 58
10KΩ
73 72
2
1
6
5
M
-
+
59 60
100KΩ
76
77
20 21
100μF
27
2826
2931
30
57 58
10KΩ
73 72
21
65
M
-
+
59 60
100KΩ
7677
6261
100μF
27
100KΩ
60 59 61 62
5251
2826
38 39 36 37
777621

P. 4
• Complete all wiring connections as indicated in
the sequence. Switch on the main switch. After a
while the color lter will spin. Press the push
switch, and the spinning speed will be changed
for a while. Do not release the push switch, and
the speed will gradually back to the original
spinning speed. And then release the push switch.
The spinning will stop for a while. After waiting for
some time, the spinning will resume again like it
did at the beginning of the experiment!
Experiment 19
Manual control stop-and- spinning electric color lter
Wiring Sequence
1-76, 6-31, 45-60-29-2,
28-30, 27-72-59, 46-58-73, 5-26-57-77
• Complete all wiring connections as
indicated in the sequence. Switch on
the main switch. LED will light up.
Then cover the light sensor
completely. LED will extinguish. Do
not uncover the light sensor and wait.
After a while, LED will light up again!
And then if you uncover the light
sensor, the status will be just like the
beginning of the experiment. You can
repeat the experiment without
switching o the main switch.
Experiment 20
Light control extinguish-and-light LED
Wiring Sequence
1-76, 37-39-31, 62-60-29-2, 28-30, 27-72-59, 61-58-73,
26-52-57-77, 51-38-36
• Complete all wiring connections as indicated in the sequence. Switch on the main
switch. LED will light up. Use the magnetic pole to access the reed switch, and then
remove the magnetic pole. LED will extinguish. Then wait for a time period, LED will
light up again! You can repeat the
experiment without switching o the main
switch.
NOTE: Every time when you perform this
experiment once, remember to “discharge”
the capacitor before doing it again.
Otherwise it won’t work. To “discharge”,
connect any wire to 72-73 for a second. This
way the electricity stored in the capacitor
will be “discharged” and then the
experiment can work again.
Experiment 21
Magnet control extinguish-and-light LED
Wiring Sequence
1-76, 37-39-31, 21-60-29-2, 28-30, 27-72-59, 20-58-73,
26-52-57-77, 51-38-36
• Connect all wiring connections as
indicated in the sequence. Switch on
the main switch. Red LED will light up
while green LED will not. Then press
the push switch. The green LED will
also light up.
Experiment 23
Double-Switch control LED light
Wiring Sequence
1-76, 2-3,
4-33-46-53, 38-34-77, 32-35,
45-57, 25-58, 54-39
• Complete all wiring connections as
indicated in the sequence. Switch on the
main switch. LED will light up. Press the
push switch, and then release it. LED will
extinguish. Then wait for a time period,
LED will light up again! You can repeat
the experiment without switching o
the main switch.
Experiment 22
Manual control extinguish-and-light LED
Wiring Sequence
• Complete all wiring connections as
indicated in the sequence. Switch
on the main switch. Adjust the
variable resistor from minimum to
maximum, and the brightness of
the LED will change from dim to
bright.
Experiment 24
Practical super dimmable LED light
Wiring Sequence 1-76, 2-3, 4-29-56, 55-65, 27-64, 35-31, 30-28,
26-34-63-77
• Complete all wiring connections as
indicated in the sequence. Switch on the
main switch and press the push switch.
Electricity will ow through the transistor
so that LED will light up. At the same time
the capacitor is being charged. Release
the push switch. The transistor can still
keep conductive for some time, as the
capacitor will release the stored electricity.
Therefore the LED will not extinguish immediately after you release the push switch.
Experiment 25
Super manual control delayed LED
Wiring Sequence
1-76, 2-3,
4-29-45, 73-58-46, 57-27, 30-28,
31-35, 26-34-72-77
• Complete all wiring connections as indicated in the sequence. Switch on the main
switch. Use the magnetic pole to access
the reed switch. The circuit is connected
and LED will light up. At the same time the
capacitor is being charged. Remove the
magnetic pole. The transistor can still be
conductive for some time, as the
capacitor will release the stored
electricity. Therefore the LED will not
extinguish immediately after you remove
the magnetic pole.
Experiment 26
Super magnetic activated delayed LED
Wiring Sequence 1-76, 2-3, 4-29-20, 73-58-21, 57-27, 30-28, 31-35,
26-34-72-77
• Complete all wiring connections as indicated in the sequence. Switch on the main
switch. Touch the touch-plate with nger. You may have to dampen your nger with
water before touching. The circuit is then connected and electricity will ow through
the transistor so that LED will light up. At
the same time the capacitor is being
charged. Then remove your nger. Note
that you may have to wipe the water o
the touch-plate. You will see the transistor
can still keep conductive for some time as
the capacitor will release the stored
electricity. Therefore the LED will not
extinguish immediately after you remove
your nger from the touch-plate.
Experiment 27
Touch control delayed extinguishing LED
Wiring Sequence
1-76, 2-3, 4-29-48, 73-58-47, 57-27, 30-28, 31-35,
26-34-72-77
• Complete all wiring connections as indicated in
the sequence. Switch on the main switch. LED will
light up. Cover the Light Sensor completely, and
wait for some time. The LED will become dimmer
and dimmer gradually. Finally it will extinguish. If
you take away the cover thing, the LED will light up
immediately. You can repeat the experiment by
covering the Light Sensor again for some time.
Experiment 28
Light control activated LED light
Wiring Sequence
1-76, 2-3, 4-29-62,
73-58-61, 57-27, 30-28, 31-35,
26-34-72-77
1kΩ
5453
3233
58
57
4546
4 3 2 1 76 77
3938
35
25
34
10KΩ
55 56
2764
29
31
3534
26 28
6563
77 76 1 2 3 4
30
5.1KΩ
46 45
27
28
26
2931
30
57 58
10KΩ
73 72
2
1
65
M
-
+
59 60
100KΩ
7677
100μF
27
5758
29313534
26 28
4847
7372
77 76 1 2 3 4
30
10KΩ
100μF
10KΩ 27
57
58
29313534
26 28
20
21
7372
77 76 1 2 3 4
30
100μF
27
57
58
29313534
26 28
45467372
77 76 1 2 3 4
30
10KΩ
100μF
10KΩ
100KΩ
30
52 51
2772
73
21
6059
2826
31 29
3938
36 37
77 76 1 2
205857
100μF
100Ω
10KΩ
100KΩ
30
52 51
277273
45
6059
2826
31 29
3938
36 37
77 76 1 2
465857
100μF
100Ω
10KΩ
100KΩ
30
52 51
100Ω
277273
62
6059
2826
31 29
3938
36 37
77 76 1 2
615857
100μF
10KΩ 27
5758
29313534
26 28
6261
7372
77 76 1 2 3 4
30
100μF
1-76, 37-39-31, 45-60-29-2, 28-30, 27-72-59, 46-58-73,
26-52-57-77, 51-38-36

P. 5
• Complete all wiring connections as
indicated in the sequence. Switch on the
main switch. Cover the Light Sensor
completely, the LED will light up.
Uncover the Light Sensor and shine it
with bright light. Then the LED will
extinguish. This is because of the light
falling on the Light Sensor changes its
resistance.
Experiment 29
Super LED light activated by darkness
Wiring Sequence
1-76, 2-3, 4-29-59,
61-34-26-77, 62-60-27, 28-30, 35-31
• Complete all wiring connections as indicated in the sequence. Switch on the main
switch. Turn the variable resistor from
minimum to maximum, and the super
LED light will change from dim to bright.
Adjust the variable resistor to a position
which just causes the light to be
extinguished. And then if you clap your
hands near the microphone, blow to the
microphone, or speak loudly near the
microphone will cause the super LED to
light up.
Experiment 31
Adjustable and blow-able super LED light
Wiring Sequence
1-76, 2-3, 4-33-51-54-15, 32-35, 64-49-25, 52-65,
28-50-53, 27-58-14, 26-34-57-63-77
• Complete all wiring connections as
indicated in the sequence. Switch on the
main switch. LED will light up. Press the
push switch once and release immediate-
ly, then LED will extinguish. Just wait for a
while. After some time, the LED will light
up again! If you want to repeat the
experiment, just press the push switch
again.
Experiment 32
Manual control extinguish-and-light super LED light
Wiring Sequence
1-76, 2-3, 4-29-60-45, 73-58-46, 72-59-27, 30-28,
31-35, 26-34-57-77
• Complete all wiring connections as indicated in the sequence. Switch on the main
switch. Then drip a drop of water onto the touch plate. The circuit will be connected
and thus the speaker will
produce motor sound. At
the same time, the LED
will light up. When you
wipe the water o the
touch plate, the circuit is
disconnected and thus
everything will stop.
Experiment 33
Water droplet activated simulated motor sound with LED
Wiring Sequence
74-59-26-77, 76-1, 2-3, 4-51, 52-75-8-39, 38-29,
30-47, 48-70-60-19, 18-71-53, 54-7-28, 27-31
• Complete all wiring connections as
indicated in the sequence. Switch on
the main switch. LED will light up.
Cover the Light Sensor completely,
then LED will extinguish. Keep on
covering the Light Sensor for a while.
After some time, the LED will light up
again! If you want to repeat the
experiment, just cover the Light
Sensor again.
Experiment 30
Light control extinguish-and-light super LED light
Wiring Sequence
1-76, 2-3, 4-29-60-62, 73-58-61, 72-59-27, 30-28, 31-35,
26-34-57-77
Experiment 34
Water droplet activated simulated ship sound with LED
Wiring Sequence
74-59-26-77, 76-1, 2-3, 4-51, 52-75-8-39, 38-29, 30-47,
48-68-60-19, 18-69-53, 54-7-28, 27-31
• Complete all wiring connections as indicated in the sequence. Switch on the main switch.
Then drip a drop of water onto the touch plate. The circuit will be connected and thus the
speaker will produce ship sound. At the same time, LED will light up. When you wipe the
water o the touch
plate, the circuit is
disconnected and thus
everything will stop.
• Complete all wiring connections as indicated in the sequence. Switch on the main
switch. Then drip a drop of water onto the touch plate. The circuit will be connected
and after a few seconds the speaker will produce motor sound. At the same time, the
LED will light up. When you wipe the water o the touch plate, the circuit is
disconnected and thus everything will stop.
NOTE: If the experiment does
not work, you may need to
“discharge” the capacitor rst.
To “discharge”, connect any
wire to 72-73 for a second.
This way the electricity stored
in the capacitor will be
“discharged” and then the
experiment can work again.
Experiment 35
Water droplet activated simulated delayed motor sound with LED
Wiring Sequence
74-59-26-77, 76-1, 2-3, 4-51, 52-75-8-39, 38-29, 30-47,
48-72-60-19, 18-73-53, 54-7-28, 27-31
• Complete all wiring connections
as indicated in the sequence.
Switch on the main switch. Then
use the magnetic pole to access
the reed switch. The circuit will be
connected and thus the speaker
will produce motor dory sound.
At the same time red LED will
light up. When the magnetic pole
is removed from the reed switch,
the circuit is disconnected and
thus everything will stop.
Experiment 36
Magnet control motor dory sound with red LED
Wiring Sequence
1-76, 2-3, 4-51, 52-8-39-75, 7-28-54, 18-53-66,
19-30-67-60, 31-20-73, 27-21-72, 38-29, 74-59-26-77
• Complete all wiring connections
as indicated in the sequence.
Switch on the main switch. Then
use the magnetic pole to access
the reed switch. The circuit will be
connected and thus the speaker
will produce motor dory sound.
At the same time green LED will
light up. When the magnetic pole
is removed from the reed switch,
the circuit is disconnected and
thus everything will stop.
Experiment 37
Magnet control motor dory sound with green LED
Wiring Sequence
1-76, 2-3, 4-51, 52-8-37-75, 7-28-54, 18-53-66,
19-30-67-60, 31-20-73, 27-21-72, 36-29, 74-59-26-77
10KΩ
100KΩ
73 72 27
30
77 76
454658
57
59 60
2826
2931
35
34
1 2 3 4
100μF
100KΩ
29313534
26
61 62 60 59
28
77 76 1 2 3 4
30
27
10KΩ
100KΩ
73 72
59 60
26 28
2931
3534
4321
58 57 77 76
27
30
61 62
100μF
100KΩ 67 66
3938
27
2826
1819
7 8
73 72
4321
59 60
53 54
2931
30
7677
20 21
7574
5152
100μF
470μF
100Ω
1KΩ
77
34 35 32 33
6563
26 28 53 54
1514
58
57
27
50 49
52 51
25
64
76 1 2 3 4
10KΩ
100Ω
1KΩ
100KΩ 67 66
3736
27
2826
1819
78
73 72
4321
59 60
53 54
2931
30
7677
20 21
7574
5152
100μF
470μF
100Ω
1KΩ
70
71
3938
27 28
26
48 47
18
19
7 8
4
3
2
1
59
60
53 54
29
31
30
7677
75
74
5152
470μF
100KΩ
1KΩ 100Ω
10μF
100KΩ
100Ω
69
68 3938
27 28
26
18
19
7 8
4
3
2
1
59
60
53 54
29
31
30
7677
75
74
5152
470μF
1KΩ
48 47
0.1μF
100KΩ
100Ω
3938
27 28
26
18
19
7 8
4
3
2
1
59
60
53 54
29
31
30
7677
75
74
5152
470μF
1KΩ
48 47
73
72 100μF

P. 6
• Complete all wiring connections as indicated in the sequence. Switch on the
main switch. Then use the magnetic pole to access the reed switch. The circuit
will be connected and thus the speaker will produce ship sound. At the same
time LED will light up. When
the magnetic pole is removed
from the reed switch, the
circuit is disconnected and
thus everything will stop.
Experiment 38
Magnet control ship sound with LED
Wiring Sequence
1-76, 2-3, 4-51, 52-8-37-75, 7-28-54, 18-53-68,
19-30-69-60, 31-20-73, 27-21-72, 36-29, 74-59-26-77
• Complete all wiring connections as indicated in the sequence. Switch on the
main switch. Then use the magnetic pole to access the reed switch. The circuit
is then connected and the
speaker will make a sound
and LED will light up. Remove
the magnetic pole, then LED
will ash and gradually
extinguish. At the same time
speaker will produce “dic, dic”
sound and gradually stop.
Both LED and speaker are like
oscillating and will fade out
gradually.
Experiment 39
Magnet control electronic metronome with LED
Wiring Sequence
1-76, 2-3, 4-51, 52-8-37-75, 7-28-54, 53-71,
30-70-60, 31-20-73, 27-21-72, 36-29, 74-59-26-77
Experiment 40
Manual control electronic metronome with LED
Wiring Sequence
1-76, 2-3, 4-51, 52-8-37-75, 7-28-54, 53-71,
30-70-60, 31-46-73, 27-45-72, 36-29, 74-59-26-77
• Complete all wiring connections as indicated in the sequence. Switch on the
main switch. Then press the push switch. The circuit is then connected and the
speaker will make a sound
and LED will light up. Release
the push switch, then LED
will ash and gradually
extinguish. At the same time
speaker will produce“dic, dic”
sound and gradually stop.
Both LED and speaker are like
oscillating and will fade away
gradually.
• Complete all wiring connections
as indicated in the sequence.
Switch on the main switch. Press
the push switch. The circuit will
be connected and thus the
speaker will produce motor dory
sound. At the same time red LED
will light up. And then release
the push switch. The circuit is
disconnected and thus
everything will stop.
Experiment 41
Manual control motor dory sound with red LED
Wiring Sequence
1-76, 2-3, 4-51, 52-8-39-75, 7-28-54, 18-53-66,
19-30-67-60, 31-46-73, 27-45-72, 38-29, 74-59-26-77
• Complete all wiring connections
as indicated in the sequence.
Switch on the main switch. Press
the push switch. The circuit will be
connected and thus the speaker
will produce motor dory sound. At
the same time green LED will light
up. And then release the push
switch. The circuit is disconnected
and thus everything will stop.
Experiment 42
Manual control motor dory sound with green LED
Wiring Sequence
1-76, 2-3, 4-51, 52-8-37-75, 7-28-54, 18-53-66,
19-30-67-60, 31-46-73, 27-45-72, 36-29, 74-59-26-77
• Complete all wiring connections
as indicated in the sequence.
Switch on the main switch. Press
the push switch. The circuit will be
connected and thus the speaker
will produce ship sound. At the
same time LED will light up. And
then release the push switch. The
circuit is disconnected and thus
everything will stop.
Experiment 43
Manual control ship sound with LED
Wiring Sequence
1-76, 2-3, 4-51, 52-8-37-75, 7-28-54, 18-53-68,
19-30-69-60, 31-46-73, 27-45-72, 36-29, 74-59-26-77
• Complete all wiring connections as indicated
in the sequence. Switch on the main switch.
Press the push switch. The circuit will be
connected and thus the speaker will produce
motor dory sound. And then release the push
switch. The circuit is disconnected. However
the motor dory sound will still prolong for a
period and will fade away gradually.
Experiment 44
Manual control delayed motor dory sound
Wiring Sequence
1-76, 2-3, 7-26-72-74-52,
51-77, 28-30, 8-31-19, 18-54, 27-53-60,
46-59-73, 4-29-45-75
• Complete all wiring connections as indicated
in the sequence. Switch on the main switch.
Use the magnetic pole to access the reed
switch. The circuit will be connected and thus
the speaker will produce motor dory sound.
And then remove the magnetic pole. The
circuit is disconnected. However the motor
dory sound will still prolong for a period and
will fade away gradually.
Experiment 45
Magnet control delayed motor dory sound
Wiring Sequence
1-76, 2-3, 7-26-72-74-52,
51-77, 28-30, 8-31-19, 18-54, 27-53-60,
20-59-73, 4-29-21-75
• Complete all wiring connections as indicated
in the sequence. Switch on the main switch.
Then press the push switch. The circuit is then
connected and the speaker will produce “dic,
dic” sound. When the push switch is released,
speaker will still keep on producing the “dic,
dic” sound, but the sound will gradually fading
away and stop nally.
Experiment 46
Manual control metronome
Wiring Sequence
1-76, 2-3,
7-26-72-74-52, 51-77, 28-30, 8-31-70,
54-71, 27-53-60, 46-59-73, 4-29-45-75
67 66
3938
27
2826
46 45
1819
7 8
73 72
4321
59 60
53 54
2931
30
7677
7574
5152
100μF
470μF
100KΩ
100Ω
1KΩ
7170
3736
27
2826
7 8
73 72
4321
59 60
53 54
2931
30
7677
46 45
7574
5152
100μF
10μF
470μF
100KΩ
100Ω
1KΩ
7170
3736
27
2826
7 8
73 72
4321
59 60
53 54
2931
30
7677
20 21
7574
5152
100μF
10μF
470μF
100KΩ
100Ω
1KΩ
69 68
3736
27
2826
1819
7 8
73 72
4321
59 60
53 54
2931
30
7677
20 21
7574
5152
100μF
470μF
100KΩ
100Ω
1KΩ
100KΩ 67 66
3736
27
2826
46 45
1819
78
73 72
4321
59 60
53 54
2931
30
7677
7574
51
52
100μF
470μF
100Ω
76 77
4 3
2 1
78
18 19
53 54
27
28 26
73 72
46 45
29 31
30
59 60
75 74
51 52
100μF
470μF
100KΩ
100Ω
1KΩ
71 70
76 77
4 3
2 1
78
53 54
27
28 26
73 72
46 45
29 31
30
59 60
75 74
51 52
100μF
10μF
470μF
100KΩ
100Ω
1KΩ
76 77
4 3
2 1
78
18 19
53 54
27
28 26
73 72
29 31
30
59 60
75 74
51 52
20 21
100μF
470μF
100KΩ
100Ω
1KΩ
7677
69 68
3736
27
2826
46 45
1819
7 8
73 72
4321
59 60
53 54
2931
30
7574
5152
100μF
470μF
100KΩ
100Ω
1KΩ
1KΩ

P. 7
• Complete all wiring connections as
indicated in the sequence. Switch on the
main switch. Then the loudspeaker will
make a noisy sound and LED will light
up. Adjusting the variable resistor for
changing the resistance will aect the
sound and the brightness of the LED.
Experiment 47
Multitone producer
Wiring Sequence
1-76, 2-3, 74-36-77-7,
8-31-65, 26-37, 28-30, 4-51,
52-29-60-75, 66-59-27, 67-64
• Complete all wiring connections as
indicated in the sequence. Switch on the
main switch. Use a magnetic pole to access
the reed switch. Then the circuit will be
connected and the loudspeaker will make
a noisy sound and LED will light up.
Adjusting the variable resistor for changing
the resistance will aect the sound and the
brightness of the LED.
Experiment 48
Magnet control multitone producer
Wiring Sequence
1-76, 2-3, 74-36-77-7, 8-31-65, 26-37, 28-30, 4-51,
52-29-60-75, 66-27-21, 67-64, 59-20
• Complete all wiring connections as
indicated in the sequence. Switch on the
main switch. Press the push switch, and
then the circuit will be connected. The
loudspeaker will make a noisy sound and
LED will light up. Adjusting the variable
resistor for changing the resistance will
aect the sound and the brightness of the
LED.
Experiment 49
Manual control multitone producer
Wiring Sequence
1-76, 2-3, 74-36-77-7,
8-31-65, 26-37, 28-30, 4-51,
52-29-60-75, 66-27-45, 67-64, 59-46
• Complete all wiring connections as
indicated in the sequence. Switch on
the main switch. The LED will light up
and loudspeaker will produce cicada
like sound. Adjusting the variable
resistor for changing the resistance
will aect the sound tone and the
brightness of LED.
Experiment 50
Electronic cicada
Wiring Sequence
1-76, 2-3,
74-36-77-7, 8-31-65, 26-37, 28-30,
4-51, 52-29-60-75, 69-59-27-18,
19-64-68
• Complete all wiring connections as
indicated in the sequence. Switch on the
main switch. Then the loudspeaker will
produce ship sound. Adjusting the variable
resistor can change the resistance and
hence change the sound tone.
Experiment 52
Ship sound
Wiring Sequence
1-76, 2-3,
74-36-77-7, 8-31-65, 26-37, 28-30,
4-51, 52-29-60-75, 69-67-59-27,
66-64-68
• Complete all wiring connections as indicated in the
sequence. By tapping the push switch, LED will ash.
This is equivalent to the principle of Morse-Code. By
learning the Morse-Code table, it is possible to send a
message out at night.
Experiment 55
Morse code training kit
Wiring Sequence
2-3, 4-53, 54-39, 38-46, 1-45
• Complete all wiring connections as
indicated in the sequence. Switch on the
main switch. LED will light up. Loudspeaker
will produce creaking sound unless the
variable resistor is in the minimum
position. Then shade the Light Sensor a
little bit. The brightness of the LED will
decrease, and the tone of the creaking
sound will change. The more you shade
the Light Sensor, the more change on the
tone of the sound and the dimmer the LED
will be. You can also adjust the variable
resistor to obtain dierent eect.
Experiment 51
Light control creaking sound
Wiring Sequence
1-76, 2-3, 74-36-77-7, 8-31-65, 26-37, 28-30, 4-51,
52-29-62-75, 69-61-27-18, 19-64-68
• Complete all wiring connections as indicated
in the sequence. Switch on the main switch.
The LED will light up. Adjusting the variable
resistor will change the LED from ashing to
not ashing. When the variable resistor is at
its maximum position, the LED will ash.
When the variable resistor is at its minimum
position, the LED will not ash.
Experiment 53
Adjustable ashing LED light
Wiring Sequence
1-76, 2-3,
74-64-36-34-77, 65-70-35-31, 26-37,
28-30, 4-51, 52-29-60-75, 71-59-27
• Complete all wiring connections as
indicated in the sequence. Switch on the
main switch. Use a magnetic pole to access
the reed switch. The circuit is then connect-
ed. LED will light up. Adjusting the variable
resistor will change the LED from ashing
to not ashing.When the variable resistor is
at its maximum position, the LED will ash.
When the variable resistor is at its
minimum position, the LED will not ash.
Experiment 54
Magnet control adjustable ashing LED light
Wiring Sequence
1-76, 2-3, 74-64-36-34-77, 70-65-35-31, 26-37, 28-30,
4-51, 52-21-29-75, 60-20, 71-59-27
• Complete all wiring connections as
indicated in the sequence.When the push
switch is pressed, LED will light up, and
the loudspeaker will produce boresome
humming sound like that of a mosquito.
Experiment 56
Boresome humming
Wiring Sequence
1-7-36-74, 2-3,
26-37, 4-51, 75-60-29-52, 30-45,
28-46, 27-59-67, 8-31-66
• Complete all wiring connections as indicated in
the sequence.When the push switch is pressed,
LED will light up, and the loudspeaker will
produce“di, di” sound like that of automobile.
Experiment 57
Automobile’s “di-di” sound
Wiring Sequence
1-7-36-74, 2-3,
26-37, 4-51, 75-60-29-52, 30-45,
28-46, 27-59-69, 8-31-68
76 77
4 3
2 1
78
27
28 26
29 31
30
59 60
6766
37 36
63 65
64
75 74
5152
470μF
100KΩ 100Ω
46 45
76 77
4 3
2 1
78
27
28 26
29 31
30
59 60
67
66
37 36
63 65
64
75 74
5152
470μF
100KΩ 100Ω
76 77
4 3
2 1
7
8
27
28 26
37 36
29 31
30
69 68
18 19
BZ
63 65
64
75 74
5152
470μF
6261
100Ω
76 77
4 3
2 1
78
27
28 26
37 36
29 31
30
69 68
59 60
18 19
BZ
63 65
64
75 74
5152
470μF
100KΩ 100Ω
76 77
4 3
2 1
78
27
28 26
29 31
30
59 60
67
66
37 36
63 65
64
75 74
20 21
5152
470μF
100KΩ 100Ω
4321
7
8
27
2826
2931
30
59 606766
37 36
46 45
7574
5152
470μF
100KΩ
100Ω
4321
78
27
2826
2931
30
59 606968
37 36
46 45
7574
5152
470μF
100KΩ
100Ω
76 77
4 3
2 1
78
27
28 26
37 36
29 31
30
69 68
59 60
67 66
63 65
64
75 74
5152
470μF
100KΩ 100Ω
59 60
76 77
4 3
2 1
27
28 26
29 31
30
37 36
71 70
35 34
65 63
64
75 74
5152
470μF
10μF
100KΩ 100Ω
76 77
4 3
2 1
27
28 26
29 31
30
65 63
64
37 36
71 70
35 34
75 74
5960
20 21 5152
470μF
10μF
100KΩ
100Ω
21
3938
5354
46 45
43
1KΩ

P. 8
• Complete all wiring connections as indicated in the sequence. Switch on the main
switch. Then the LED will light up. If there are bright light shines on the Light Sensor,
then the radio cannot work. It is necessary for the Light Sensor to be shaded so that this
circuit is connected. Adjusting the variable condenser to suitable position will allow it
to receive AM radio signals. Since AM radio wave is sensitive towards signal direction,
when the radio signal is weak, try to move
the radio to other direction.
Note: If you cannot
receive AM signal in
indoor area, you can
go to outdoor areas
and try it again.
Experiment 63
Darkness activated AM radio receiver with volume control
Wiring Sequence
1-76, 2-3, 4-40-54-58, 7-44, 43-38-77-8, 9-16-59-62-66,
22-17-10, 71-56, 68-60-57-55-24, 65-70, 69-67-63-61-41-23, 64-42, 53-39
• Complete all wiring connections as indicated in the sequence. Switch on the main
switch. If you press the button“select”, which is located at the left side of the panel, then
it will perform a FM auto-search. The receiver will search for channel from lower end to
upper end. It will stop searching when it nds a channel. You may press search again to
let it search for another channel. You will have to press the“reset” button if the receiver
has searched to the upper most channel and
cannot nd anything. It is recommended to
add a wire on the“FM. ANT”, which is located
on the left side of the panel. The wire will act
as an antenna. This will increase the strength
of the radio signal received.
Experiment 64
Big voice FM radio receiver
Wiring Sequence
1-76, 2-3, 4-40-11, 12-41, 13-42, 44-7, 8-43-77
v- 43
sp 44
I/O
42
G
41
v+
40
4 3 2 1
78
76
77
VI 13
V- 12
V+ 11
T
R
Experiment 65
Big voice FM radio receiver with volume control
Wiring Sequence 1-76, 2-3, 4-40-11, 12-41-63, 13-65, 44-7,
8-43-77, 42-64
v- 43
sp 44
I/O
42
G
41
v+
40
4 3 2 1
78
7677
6563
64
VI 13
V- 12
V+ 11
T
R
• Complete all wiring connections as indicated in the sequence. Switch on the main
switch. If you press the button“select”, which is located at the left side of the panel, then
it will perform a FM auto-search. The receiver will search for channel from lower end to
upper end. It will stop searching when it nds a channel. You may press search again to
let it search for another channel. You will have to press the“reset” button if the receiver
has searched to the upper most channel and
cannot nd anything. Adjusting the variable
resistor can change the volume. It is
recommended to add a wire on the “FM.
ANT”, which is located on the left side of the
panel. The wire will act as an antenna. This
will increase the strength of the radio signal
received.
• Complete all wiring connections as indicated in the sequence. Switch on the main
switch. Then the LED will light up. Adjusting the variable condenser to suitable position
will allow it to receive AM radio signals. Adjusting the variable resistor can change the
volume. Since AM radio wave is sensitive
towards signal direction, when the radio
signal is weak, try to move the radio to
other direction.
Note: If you cannot
receive AM signal in
indoor area, you can
go to outdoor areas
and try it again.
Experiment 60
Big voice AM radio receiver with volume control
Wiring Sequence
1-76, 2-3, 4-40-54-58, 7-44, 43-38-77-8, 9-16-59-66,
22-17-10, 71-56, 68-60-57-55-24, 65-70, 69-67-63-41-23, 64-42, 53-39
• Complete all wiring connections as indicated in the sequence. Switch on the main
switch. Use the magnetic pole to access the reed switch. The circuit is connected and
LED will light up. Adjusting the variable condenser to suitable position will allow it to
receive AM radio signals. Adjusting the variable resistor can change the volume. Since
AM radio wave is sensitive towards signal direction, when the radio signal is weak, try to
move the radio to other direction.
Note: If you cannot receive AM signal
in indoor area, you can go to outdoor
areas and try
it again.
Experiment 61
Magnet control AM radio receiver with volume control
Wiring Sequence
1-21, 2-3, 4-40-54-58, 7-44, 43-38-20-8, 9-16-59-66,
22-17-10, 71-56, 68-60-57-55-24, 65-70, 23-41-63-67-69, 64-42, 53-39
• Complete all wiring connections as indicated in the sequence. Switch on the main
switch. Then the LED will light up. However if the Light Sensor is shaded, then the radio
cannot work. It is necessary for the Light Sensor to be shone by bright light so that this
circuit is connected. Adjusting the variable condenser to suitable position will allow it
to receive AM radio signals. Since AM
radio wave is sensitive towards signal
direction, when the radio signal is
weak, try to move the radio to other
direction.
Note: If you cannot
receive AM signal in
indoor area, you can
go to outdoor areas
and try it again.
Experiment 62
Daylight activated AM radio receiver with volume control
Wiring Sequence
1-76, 2-3, 4-40-54-62, 7-44, 43-38-77-8, 9-16-59-66,
22-17-10, 71-56, 68-61-60-55-24, 65-70, 23-41-69-67-63, 64-42, 53-39
• Complete all wiring connections as
indicated in the sequence. When the
push switch is pressed, LED will light
up, and the loudspeaker will produce
hoofbeat like sound.
Experiment 58
Hoofbeat
Wiring Sequence 1-7-36-74, 2-3, 26-37, 4-51, 75-60-29-52,
30-45, 28-46, 27-59-71, 8-31-70
• Complete all wiring connections as indicated in the sequence. Switch on the main
switch. Then the LED will light up. Adjusting the variable condenser to suitable position
will allow it to receive AM radio signals. By pressing the push switch, the radio will be
mute. Since AM radio wave is sensitive towards signal direction, when the radio signal
is weak, try to move the radio to other direction.
Note: If you cannot receive AM signal in
indoor area, you can go to outdoor areas
and try again.
Experiment 59
AM radio receiver with mute function
Wiring Sequence
1-76, 2-3, 4-40-54-55-58, 7-44, 43-38-77-8, 9-16-59-66,
22-17-10, 71-68-60-57-24, 42-28-70, 69-67-41-26-23, 39-53, 27-46, 45-56
4321
78
27
2826
2931
30
59 607170
37 36
46 45
7574
5152
470μF
10μF 100KΩ
100Ω
10KΩ
5.1KΩ
65
63
64
910
59 60
6766
0.02μF
69 68
0.1μF
71 70
57 58
16 17 23
24
22 v- 43
sp 44
I/O
42
G
41
v+
40
4321
78
7677
5354 39 38
55 56
10μF
100KΩ
1KΩ
910
59 60
6766
0.02μF
69 68
0.1μF
71 70
10μF
57 58
16 17 23
24
22 v- 43
sp 44
I/O
42
G
41
v+
40
43
2
1
78
76
77
5354 39 38
27
2826
555646 45
10KΩ
100KΩ
5.1KΩ
1KΩ
6563
64
910
59 60
69 68
0.1μF
71 70
10μF
57 58
16 17 23
24
22 v- 43
sp 44
I/O
42
G
41
v+
40
4
3
21
78
6766
0.02μF
20 21
53
54 39 38
55 56
10KΩ
100KΩ
5.1KΩ
1KΩ
62 61
6563
64
910
59 60
6766
0.02μF
69 68
0.1μF
71 70
10μF
57 58
16 17 23
24
22 v- 43
sp 44
I/O
42
G
41
v+
40
4
3
2
1
78
7677
5354
1K
39 38
55 56
10KΩ
100KΩ
5.1KΩ
62
61
65
63
64
910
6766
0.02μF
69 68
0.1μF
71 70
10μF
59 60
16 17 23
24
22 v- 43
sp 44
I/O
42
G
41
v+
40
43
21
78
76
77
5354 39 38
55 56
100KΩ 1KΩ
5.1KΩ

P. 9
Experiment 66
Daylight activated FM radio receiver with volume control
Wiring Sequence 1-76, 2-3, 42-64, 62-59-30, 11-31, 40-60-29-4,
12-41-61-63, 13-65, 44-7, 8-43-77
• Complete all wiring connections
as indicated in the sequence.
Switch on the main switch. The
circuit is connected. However if
the Light Sensor is shaded, then
the circuit will be disconnected
and the radio cannot work.
Therefore it is necessary for the
Light Sensor to be shone by bright
light so that this circuit is connected. If you
press the button “select”, which is located at the left side of the
panel, then it will perform a FM auto-search. The receiver will search for channel from
lower end to upper end. It will stop searching when it nds a channel. You may press
search again to let it search for another channel. You will have to press the“reset”button if
the receiver has searched to the upper most channel and cannot nd anything. Adjusting
the variable resistor can change the volume. It is recommended to add a wire on the“FM.
ANT”, which is located on the left side of the panel. The wire will act as an antenna. This will
increase the strength of the radio signal received.
Experiment 67
Darkness activated FM radio receiver with volume control
Wiring Sequence
1-76, 2-3, 30-61-60, 11-31, 40-62-29-4, 12-41-63-59,
13-65, 44-7, 8-43-77, 42-64
• Complete all wiring connections
as indicated in the sequence.
Switch on the main switch. If the
Light Sensor is not shaded, then
the radio cannot work. Therefore
it is necessary for the Light Sensor
to be shaded so that this circuit is
connected. If you press the
button “select”, which is located at the left side
of the panel, then it will perform a FM
auto-search. The receiver will search for channel from lower
end to upper end. It will stop searching when it nds a channel. You may press search
again to let it search for another channel. You will have to press the “reset” button if the
receiver has searched to the upper most channel and cannot nd anything. Adjusting
the variable resistor can change the volume. It is recommended to add a wire on the
“FM. ANT”, which is located on the left side of the panel. The wire will act as an antenna.
This will increase the strength of the radio signal received.
Experiment 68
Big voice AM/FM radio receiver with volume control
Wiring Sequence
1-76, 2-3, 4-40-58-11, 7-44 8-43-77, 9-16-59-66 ,
22-17-10, 71-56, 68-60-57-55-24, 12-23-63-69-67-41, 64-42
• Complete all wiring connections as
indicated in the sequence. Switch on the
main switch. If you want to use AM mode,
connect spring terminal 65 to spring
terminal 70. And then adjust the variable
condenser to suitable position for receiving
AM channels. Since AM radio wave is
sensitive towards signal direction, when
the radio signal is weak,
try to move the radio to
other directions. If you
want to use FM mode,
connect spring terminal
65 to spring terminal 13.
Press the button “select”,
which is located at the
left side of the panel. Then it will perform a FM auto-search. The receiver will search for
channel from lower end to upper end. It will stop searching when it nds a channel. You
may press search again to let it search for another channel. You will have to press the
“reset” button if the receiver has searched to the upper most channel and cannot nd
anything. It is recommended to add a wire on the “FM. ANT”, which is located on the left
side of the panel. The wire will act as an antenna. This will increase the strength of the
radio signal received. For both AM and FM mode, adjusting the variable resistor can
change the volume. This circuit enables users to switch between AM and FM easily.
Note: If you cannot receive AM signal in indoor area, you can go to outdoor areas and try
it again.
Experiment 69
Simple impact amplier
Wiring Sequence 1-76, 2-3, 4-40-54-56, 7-44, 42-64, 63-41-36-18,
71-55-19, 8-43-77, 37-53, 65-70
• Complete all wiring connections as indicated in the sequence. Switch on the main
switch. LED will light up. Slightly scratch the buzzer. You will nd that the
loudspeaker is amplifying the scratching sound. You may also beat the buzzer to
hear the amplied sound of impact on the buzzer. Adjusting the variable resistor
can change the volume. This principle can be used for security systems. People can
x a buzzer on the door, on the car door or on the window. Then if the door or
window has been forced, loudspeaker will produce amplied impacting sound.
Experiment 70
Magnet control FM radio receiver with volume control
Wiring Sequence 1-8-43-60, 2-3, 4-29-58, 7-44, 57-20, 42-64,
63-41-12, 21-27-59, 28-30, 65-13, 11-26-31-40
• Complete all wiring connections as indicated in the sequence. Use the magnetic pole
to access the reed switch. If you press the button “select”, which is located at the left
side of the panel, then it will perform a FM auto-search. The receiver will search for
channel from lower end to upper end. It will stop searching when it nds a channel. You
may press search again to let it search for another channel. You will have to press the
“reset” button if the receiver has searched to the upper most channel and cannot nd
anything. Adjusting the variable resistor can change the volume. It is recommended to
add a wire on the “FM. ANT”, which is located on the left side of the panel. The wire will
act as an antenna. This will increase the strength of the radio signal received.
Experiment 71
Touch control FM radio receiver with volume control
Wiring Sequence 1-8-43-60, 2-3, 4-29-48, 7-44, 42-64, 63-41-12,
27-47-59, 28-30, 65-13, 11-26-31-40
• Complete all wiring connections as indicated in the sequence. Touch the touch plate
with your nger. Note that if there is no response, you may need to dampen your nger
rst before touching. Then the circuit will be connected. If you press the button“select”,
which is located at the left side of the panel, then it will perform a FM auto-search. The
receiver will search for channel from lower end to upper end. It will stop searching
when it nds a channel. You may press search again to let it search for another channel.
You will have to press the“reset” button if the receiver has searched to the upper most
channel and cannot nd anything. Adjusting the variable resistor can change the
volume. It is recommended to add a wire on the “FM. ANT”, which is located on the left
side of the panel. The wire will act as an antenna. This will increase the strength of the
radio signal received.
6563
64
v- 43
sp 44
I/O
42
G
41
v+
40
4321
7 8
2931
30
27
2826
59
60
VI 13
V- 12
V+ 11
T
R
2021
57 58
10KΩ
100KΩ
6563
64
v- 43
sp 44
I/O
42
G
41
v+
40
4321
7 8
2931
30
27
2826
5960 47 48
VI 13
V- 12
V+ 11
T
R
100KΩ
v- 43
sp 44
I/O
42
G
41
v+
40
4 3 2 1
78
7677
65 63
64
VI 13
V- 12
V+ 11
T
R2931
30
6261 59 60
100KΩ
v- 43
sp 44
I/O
42
G
41
v+
40
4 3 2 1
78
7677
65 63
64
VI 13
V- 12
V+ 11
T
R
2931
30
59 60 6261
100KΩ
6563
64
55 56
71 70
10μF
v- 43
sp 44
I/O
42
G
41
v+
40
43
2
1
7
8
7677
18 19
53 54
3736
5.1KΩ
1KΩ
9 10
59 60
6766
0.02μF
69 68
0.1μF
71 70
10μF
57 58
16 17
pvc
23
24
22
v- 43
sp 44
I/O
42
G
41
v+
40
4321
7
8
7677
65
63
64
VI 13
V- 12
V+ 11
T
R
A
B
C
AM
FM
55 56
10KΩ
100KΩ
5.1KΩ
Big voice AM/FM radio receiver with volume control

P.10
Experiment 72
FM radio receiver with mute function
Wiring Sequence 1-76, 2-3, 4-11-40-56, 12-26-41, 13-28-42, 44-7,
8-43-77, 55-46, 45-27
• Complete all wiring connections as indicated in the sequence. Switch on the
main switch. If you press the button “select”, which is located at the left side of
the panel, then it will perform a FM auto-search. The receiver will search for
channel from lower end to upper end. It will stop searching when it nds a
channel. You may press search again to let it search for another channel. You will
have to press the “reset” button if the receiver has searched to the upper most
channel and cannot nd anything. By pressing the push switch, the radio will be
mute. It is recommended to add a wire on the “FM. ANT”, which is located on the
left side of the panel. The wire will act as an antenna. This will increase the
strength of the radio signal received.
Amplier - An electronic circuit that amplies the signal that is sent to
it. The amplifying component can be a transistor, vacuum tube or
appropriate magnetic device.
Battery - A source of energy. It contains chemicals which will undergo
chemical reaction to produce electricity when a circuit is connected.
Capacitance – A measurement of the capacity of a capacitor for
storing electric charge.
Capacitor - A device consists of two conductors that are separated by
an insulator. It is designed for storing electrical charge or as a lter in
the circuit.
Circuit – A system of interconnected components / devices such as
power source, resistors, capacitors and transistors…etc.
Diode – A device which is used in electric circuitry to allow an electric
current to ow in single direction and block it in the reverse direction.
IC (Integrated Circuit) – A small electronic device made of a
semiconductor material and is used for a variety of devices, including
microprocessors, electronic equipment and automobiles.
Light Sensor – There are dierent types of light sensor. The one used
here is a phototransistor. When light falls on it, it is like a switch
connected and so current is allowed to pass through it.
GLOSSARY
LED (Light Emitting Diode) – A diode emits light when current is
passing through it.
Microphone - A device converts sound into an electrical or
acoustic signal
Motor – A device converts electrical energy to mechanical motion.
Reed Switch –A magnetically controlled switch made to open and
close a circuit.
Resistance – A measurement of the degree to which an object
opposes an electrical current through it.
Resistor - A device designed for possessing resistance.
Speaker - A device that changes electrical signals to sound.
Switch - A device for opening and closing power source to a circuit
Transistor - A semi-conductor material device that amplies a signal
and opens or closes a circuit.
Variable Resistor – A kind of resistor and a device of adjustable
resistance in the electronic / electrical circuit.
Wire – A conductor that conducts electricity. Connecting a wire is like
providing a path that allows electricity to ow though.
Experiment 73
Magnet control auto-sensor
Wiring Sequence 1-76, 2-3, 4-39-40, 71-21, 20-42, 70-44-7,
54-43-77-8, 38-53
• Complete all wiring connections as indicated in the sequence. Switch on the
main switch. Use the magnetic pole to access the reed switch. The circuit is then
connected and transferring the signal of loudspeaker to the input terminal,
loudspeaker is producing self-coupled self-excited oscillating sound.
v- 43
sp 44
I/O
42
G
41
v+
40
4 3 2 1
78
7677
VI 13
V- 12
V+ 11
T
R
27
2826
55 56
46 45
5.1KΩ
71 70
10 μF
v- 43
sp 44
I/O
42
G
41
v+
40
4
3
21
7677
20
21
78
5354 3938
1KΩ

© Explore Scientific, LLC.
1010 S 48th Street, Springdale, AR 72762
explorescientificusa.com | 866.252.3811
All rights reserved. Made in China.
If at any time in the future you should need to dispose of this product please note that waste electrical products
should not be disposed of with household waste. Please recycle where facilities exist. Check with your local authority
or retailer for recycling advice. (Waste Electrical and Electronic Equipment Directive)