Elenco Digital Roulette Kit User Manual
ELECTRONIC ROULETTE KIT
MODEL AK-300
ight © 2005, 1997 b
yr
Cop
t of this book shall be reproduced b
No par
Instruction & Assembly Manual
Elenco®Electronics, Inc.
y Elenco
®
Electronics
y means;
y an
, Inc.
electronic
ights reser
All r
, photocopying, or otherwise without written permission from the publisher.
ved. Revised 2005 REV-D 753031
PARTS LIST
If you are a student, and any parts are missing or damaged, please see instructor or bookstore.
I
f you purchased this roulette kit from a distributor, catalog, etc., please contact Elenco®E
(address/phone/e-mail is at the back of this manual) for additional assistance, if needed. DO NOT contact your
place of purchase as they will not be able to help you.
RESISTORS
Qty. Symbol Value Color Code Part #
1 R22 1kΩ 5% 1/4W brown-black-red-gold 141000
4 R1 - R4 1.2kΩ 5% 1/4W brown-red-red-gold 141200
1 R19 1.5kΩ 5% 1/4W brown-green-red-gold 141500
5 R5 - R9 10kΩ 5% 1/4W brown-black-orange-gold 151000
2 R15, R16 20kΩ 5% 1/4W red-black-orange-gold 152000
1 R13 47kΩ 5% 1/4W yellow-violet-orange-gold 154700
1 R17 56kΩ 5% 1/4W green-blue-orange-gold 155600
2 R11, R20 100kΩ 5% 1/4W brown-black-yellow-gold 161000
1 R24 270kΩ 5% 1/4W red-violet-yellow-gold 162700
1 R14 330kΩ 5% 1/4W orange-orange-yellow-gold 163300
1 R10 820kΩ 5% 1/4W gray-red-yellow-gold 168200
1 R23 1.8MΩ 5% 1/4W brown-gray-green-gold 171800
1 R12 2.2MΩ 5% 1/4W red-red-green-gold 172200
1 R18 3.3MΩ 5% 1/4W orange-orange-green-gold 173300
1 R21 4.7MΩ 5% 1/4W yellow-violet-green-gold 174700
lectronics
CAPACITORS
Qty. Symbol Value Description Part #
1 C4 .001µF Discap (102) 231036
1 C2 .0033
1 C1 .02µF or .022µF Discap (203 or 223) 242010
1 C5 .47µF Electrolytic (Lytic) 254747
2 C3, C6
2 C7, C8 100µF Electrolytic (Lytic) 281044
µF Mylar (332) 233317
1
µF Electrolytic (L
ytic) 261047
SEMICONDUCTORS
Qty. Symbol Value
2 D41, D43 1N4001 Diode 314001
3 D39, D40, D42 1N4148 Diode 314148
7 Q1 - Q4, Q7 - Q9 2N3904 Transistor 323904
2 Q5, Q6 2N3906 Transistor 323906
U1, U3 4017 Integrated Circuit 334017
2
1 U2 4069 Integrated Circuit 334069
36 D1 - D36 LED Red 350002
D37, D38 LED Green 350010
2
Description Part #
MISCELLANEOUS
Symbol Description Part #
Symbol Description Part #
.
Qty
1 PC Board 517100
1 S1 Push Button Switch 540101
BT Battery Holder 9V 590096
1
1 BZ1 Buzzer Piezoelectric 595201
4 Plastic Spacer 624010
3
8 Screw 4-40 x 1/4” Black 641433
3 Nut 2-56 Hex 644201
Screw 2-56 x 5/16” 641231
.
Qty
4 Flat Washer Black 645404
3 Flat Washer White 645600
U2 14-pin Socket 664014
1
2 U1, U3 16-pin Socket 664016
1 Paper Clip 680018
1
1 40” Wire 22ga. Bare 845000
1 Solder Tube 9ST4A
4” Wire 22ga. Black Solid
814120
**** SAVE THE BOX THAT THIS KIT CAME IN. IT WILL BE USED ON PAGE 10. ****
-1-
IDENTIFYING RESISTOR VALUES
Use the following information as a guide in properly identifying the value of resistors.
BAND 1
1st Digit
Color Digit
Black 0
Brown 1
Red 2
Orange 3
Yellow 4
Green 5
Blue 6
Violet 7
Gray 8
White 9
BAND 2
2nd Digit
Color Digit
Black 0
Brown 1
Red 2
Orange 3
Yellow 4
Green 5
Blue 6
Violet 7
Gray 8
White 9
2 Multiplier Tolerance
1
Multiplier
Color Multiplier
Black 1
Brown 10
Red 100
Orange 1,000
Yellow 10,000
Green 100,000
Blue 1,000,000
Silver 0.01
Gold 0.1
BANDS
Resistance
Tolerance
Color Tolerance
Silver +
Gold +5%
Brown +1%
Red +2%
Orange +3%
Green +
Blue +.25%
Violet +.1%
10%
.5%
IDENTIFYING CAPACITOR VALUES
Capacitors will be identified by their capacitance value in pF (picofarads), nF (nanofarads), or µF (microfarads). Most
capacitors will have their actual value printed on them. Some capacitors may have their value printed in the following
manner. The maximum operating voltage may also be printed on the capacitor.
Multiplier
10µF 16V
For the No. 01234589
Multiply By 1 10 100 1k 10k 100k .01 0.1
Note: The letter “R” may be used at times
to signify a decimal point; as in 3R3 = 3.3
The letter M indicates a toler
The letter K indicates a tolerance of +
The letter J indicates a toler
103K
100V
First Digit
Second Digit
Multiplier
olerance
T
Maximum Working Voltage
ance of +20%
10%
ance of +5%
The value is 10 x 1,000 = 10,000pF or .01µF 100V
METRIC UNITS AND CONVERSIONS
viation Means Multiply Unit By Or
Abbre
p Pico .000000000001 10
n
µ micro .000001 10
m milli .001 10
– unit 1 10
k kilo 1,000 10
M
nano
mega
.000000001
1,000,000
10
10
1,000 pico units
-12
-9
-6
-3
0
3
6
1.
2. 1,000 nano units = 1 micro unit
3. 1,000 micro units= 1 milli unit
1,000 milli units
4.
5. 1,000 units = 1 kilo unit
6. 1,000 kilo units= 1 mega unit
= 1 nano unit
= 1 unit
-2-
INTRODUCTION
Electronic Roulette (roo-let) replaces the ivory ball
with a circuit of flashing light emitting diodes (LED’s).
Red LED’s are arranged in a circle next to a black or
red number and two green LED’s are positioned next
to “0” and “00”. When the switch is pushed, the LED’s
light one after another, in a sequence that represents
the movement of the ivory ball. The number next to
THEORY OF OPERATION
THE BLOCK DIAGRAM
The function of many of the circuits will be presented
in the form of an analogy (similar operation, but
easier-to-understand system). In this manner, the
operation of a circuit can be explained without the
use of mathematics and equations.
Figure 1 shows a Block Diagram of the Electronic
Roulette circuits. The Timer circuit is used to turn all
the other circuits on and off. The Pulse Generator
es pulses that create the sound and force the
mak
ring counter to move the position of the lit LED. The
Sound Circuit generates the sound of a bouncing
y ball, and a warning tone a f
or
iv
power down. The Ring Counter lights each LED in a
circular sequence. The LED’s represent the position
Timer
ory ball.
Pulse
Generator
of the iv
ew seconds before
Ring
Counter
Sound
Circuit
LED’s
the lit LED when movement stops is the winning
number. During movement, the sound of a bouncing
ball is generated. If the switch is not pressed again,
the circuits will automatically turn off, to conserve the
battery power. A constant tone will alert you to check
your number before automatic shut down.
THE TIMER
When S1, the start button, is pushed, capacitor C7
(Figure 2, Schematic Diagram) is charged to the
battery voltage. This is similar to flipping the “Timer
Glass” shown in Figure 2a to produce the condition
shown in Figure 2b. Just as the sand runs down
holding the lever arm up (Figure 2b), the charges in
th capacitor C7 forces transistors Q6, Q8, and Q9 on.
As long as the lever arm is up in Figure 2b, the other
circuits are po
switch X1. At first, due to the weight of the sand
(similar to capacitor C7 being fully charged), the
contact C2 will open and remain open.
the sand totally runs out (capacitor C7 has lost most
of its charge), the contact C2 will close, as shown in
Figure 2c
contact C1 is about to open and turn all the power
off, including the power to the warning circuit.
Eventually all the sand r
(capacitor C7 has discharged) and the power is
turned off (Figure 2a). To make the timer stay on
longer
, you could get a bigger “Timer Glass”
capacitor for C7) that holds more sand and replace
the smaller one.
wered through the contact C1 on
, and sound an alarm to war
n you that the
uns out of the “Timer Glass”
Right bef
(larger
ore
Figure 2
A
B
C
Figure 1
Sand
Sand
C1
C1
C1
C2
C2
C2
wer for all circuits
o
P
Battery
Warning Circuit
Switch X1
ower for all circuits
P
Battery
Warning Circuit
Switch X1
Power for all circuits
y
Batter
arning Circuit
W
Switch X1
-3-
9V
Battery
BT1
To Warning
Circuit
100
Schematic Diagram
Q6
2N3906
R22
µF
100
S1
1kΩ
R21
4.7M
Ω
C7
µF
R23
1.8M
Ω
C8
C3
1
Q9
2N3904
ower for
P
All Circuits
µF
Q8
2N3904
THE PULSE GENERATOR
A
ssume that part of the sand from the “Timer Glass” in
Figure 2 is poured into a bucket as shown in Figure 3a.
When the bucket has enough sand, it will flip and
dump as shown in Figure 3b. Each time it flips, it
closes switch X2, sending the battery voltage to the
Ring Counter and it strikes the “Drum” producing a
sound. The bucket in Figures 3a & 3b represents
capacitor C6 in the schematic diagram on page 12.
Capacitor C6 charges (charging = filling the bucket
with sand) through resistor R20 and discharges
(dumping the sand) through resistor R19 and diode
A
Drum for sound
Sand
D
41. Each time the sand changes buckets, a pulse
is sent to the Ring Counter and to the Sound Circuit.
When the bucket is empty, the spring returns it to the
filling position shown in Figure 3a. The sand going
into the bucket will flow slower as the “Timer Glass”
in Figure 2 runs out of sand. It will take longer and
longer to fill the bucket as the sand runs out. This
produces more space between the pulses sent to the
ring counter and has the effect of slowing down the
rotation of the lights, similar to the ivory ball slowing
down on a roulette wheel.
B
Drum for sound
Sand
Bucket
X2
Battery
X2
Spring
Electrical Poles — 0 Volts To Ring Counter
Spring
ket
Buc
y
Batter
Battery Voltage To Ring Counter
Figure 3 Pulse Generator
-4-
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