ELECTRONIC ROULETTE KIT
MODEL AK-300
Instruction & Assembly Manual
Copyright © 2016, 1997 by ELENCO
®
All rights reserved. Revised 2015 REV-H 753031
No part of this book shall be reproduced by any means; electronic, photocopying, or otherwise without written permission from the publisher.
ELENCO
®
AK-300_REV-H_021715.qxp 1/27/16 8:41 AM Page 1
Qty. Symbol Description Part #
r 1 PC board 517100
r 1 S1 Push button switch 540101
r 1 BT Battery holder 9V 590096
r 1 BZ1 Buzzer piezoelectric 595201
r 4 Plastic spacer 624010
r 3 Screw 2-56 x 5/16” 641231
r 8 Screw 4-40 x 1/4” black 641433
r 3 Nut 2-56 hex 644201
Qty. Symbol Description Part #
r 4 Flat washer black 645404
r 3 Flat washer white 645600
r 1 U2 14-pin socket 664014
r 2 U1, U3 16-pin socket 664016
r 1 Paper clip 680018
r 1
4” Wire 22ga. black solid
814120
r 1 40” Wire 22ga. bare 845000
r 1 Lead-free solder tube LF99
PARTS LIST
If you are a student, and any parts are missing or damaged, please see instructor or bookstore. If you purchased
this roulette kit from a distributor, catalog, etc., please contact ELENCO
®
(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
a
ble to help you.
RESISTORS
Qty. Symbol Value Color Code Part #
r 1 R22 1kW 5% 1/4W brown-black-red-gold 141000
r 4 R1 - R4 1.2kW 5% 1/4W brown-red-red-gold 141200
r 1 R19 1.5kW 5% 1/4W brown-green-red-gold 141500
r 5 R5 - R9 10kW 5% 1/4W brown-black-orange-gold 151000
r 2 R15, R16 20kW 5% 1/4W red-black-orange-gold 152000
r 1 R13 47kW 5% 1/4W yellow-violet-orange-gold 154700
r 1 R17 56kW 5% 1/4W green-blue-orange-gold 155600
r 2 R11, R20 100kW 5% 1/4W brown-black-yellow-gold 161000
r 1 R24 270kW 5% 1/4W red-violet-yellow-gold 162700
r 1 R14 330kW 5% 1/4W orange-orange-yellow-gold 163300
r 1 R10 820kW 5% 1/4W gray-red-yellow-gold 168200
r 1 R23 1.8MW 5% 1/4W brown-gray-green-gold 171800
r 1 R12 2.2MW 5% 1/4W red-red-green-gold 172200
r 1 R18 3.3MW 5% 1/4W orange-orange-green-gold 173300
r 1 R21 4.7MW 5% 1/4W yellow-violet-green-gold 174700
CAPACITORS
Qty. Symbol Value Description Part #
r 1 C4 0.001mF Discap (102) 231036
r 1 C2 0.0033mF Mylar (332) 233317
r 1 C1 0.02mF or 0.022mF Discap (203 or 223) 242010
r 1 C5 0.47mF Electrolytic (Lytic) 254747
r 2 C3, C6 1mF Electrolytic (Lytic) 261047
r 2 C7, C8 100mF Electrolytic (Lytic) 281044
SEMICONDUCTORS
Qty. Symbol Value Description Part #
r 2 D41, D43 1N4001 Diode 314001
r 3 D39, D40, D42 1N4148 Diode 314148
r 7 Q1 - Q4, Q7 - Q9 2N3904 Transistor 323904
r 2 Q5, Q6 2N3906 Transistor 323906
r 2 U1, U3 4017 Integrated circuit (IC) 334017
r 1 U2 4069 Integrated circuit (IC) 334069
r 36 D1 - D36 LED red 350002
r 2 D37, D38 LED green 350010
MISCELLANEOUS
-1-
**** SAVE THE BOX THAT THIS KIT CAME IN. IT WILL BE USED ON PAGE 10. ****
AK-300_REV-H_021715.qxp 1/27/16 8:41 AM Page 2
-2-
Warning:
If the capacitor is
connected with
incorrect polarity, it
may heat up and
either leak, or
cause the capacitor
to explode.
IDENTIFYING RESISTOR VALUES
Use the following information as a guide in properly identifying the value of resistors.
BANDS
METRIC UNITS AND CONVERSIONS
Abbreviation Means Multiply Unit By Or
p Pico 0.000000000001 10
-12
n nano 0.000000001 10
-9
m micro 0.000001 10
-6
m milli 0.001 10
-3
unit 1 10
0
k kilo 1,000 10
3
M mega 1,000,000 10
6
1. 1,000 pico units = 1 nano unit
2. 1,000 nano units = 1 micro unit
3. 1,000 micro units = 1 milli unit
4. 1,000 milli units = 1 unit
5. 1,000 units = 1 kilo unit
6. 1,000 kilo units = 1 mega unit
IDENTIFYING CAPACITOR VALUES
Capacitors will be identified by their capacitance value in pF (picofarads), nF (nanofarads), or mF (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.
Electrolytic capacitors have a positive
and a negative electrode. The
negative lead is indicated on the
packaging by a stripe with minus signs
and possibly arrowheads. Also, the
negative lead of a radial electrolytic is
shorter than the positive one.
Polarity
marking
B
AND 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
B
rown
1
R
ed
2
Orange 3
Yellow 4
Green 5
Blue 6
Violet 7
G
ray
8
White 9
Multiplier
Color Multiplier
Black 1
B
rown
1
0
R
ed
1
00
Orange 1,000
Yellow 10,000
Green 100,000
Blue 1,000,000
Silver 0.01
G
old
0
.1
Resistance
Tolerance
Color Tolerance
Silver ±10%
G
old
±
5%
B
rown
±
1%
Red ±2%
Orange ±3%
Green ±0.5%
Blue ±0.25%
Violet ±0.1%
1
2
Multiplier Tolerance
Multiplier
For the No. 0 1 2 3 4 5 8 9
Multiply By 1 10 100 1k 10k 100k .01 0.1
(+)
(–)
(+)
(–)
Axial
Radial
Second digit
First digit
Multiplier
Tolerance*
Note: The letter “R” may be used at times
to signify a decimal point; as in 3R3 = 3.3
The letter M indicates a tolerance of +20%
The letter K indicates a tolerance of +10%
The letter J indicates a tolerance of +5%
Maximum working voltage
(may or may not appear
on the cap)
The value is 10 x 10 =
100pF, +10%, 50V
*
CERAMIC DISC MYLAR
First digit
Second digit
Multiplier
Tolerance*
2A222J
100V
The value is 22 x 100 =
2,200pF or 0.0022mF,
+5%, 100V
101K
50V
AK-300_REV-H_021715.qxp 1/27/16 8:41 AM Page 3
-3-
INTRODUCTION
Electronic Roulette (roo-let) replaces the ivory ball
with a circuit of flashing light emitting diodes (LEDs).
Red LEDs are arranged in a circle next to a black or
red number and two green LEDs are positioned next
to “0” and “00”. When the switch is pushed, the LEDs
light one after another, in a sequence that represents
the movement of the ivory ball. The number next to
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.
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
makes pulses that create the sound and force the ring
counter to move the position of the lit LED. The Sound
Circuit generates the sound of a bouncing ivory ball,
and a warning tone a few seconds before power
down. The Ring Counter lights each LED in a circular
sequence. The LEDs represent the position of the
ivory ball.
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 powered through the contact C1 on 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. Right before the sand totally
runs out (capacitor C7 has lost most of its charge),
the contact C2 will close, as shown in Figure 2c, and
sound an alarm to warn you that the contact C1 is
about to open and turn all the power off, including the
power to the warning circuit. Eventually all the sand
runs out of the “Timer Glass” (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” (larger capacitor for C7) that
holds more sand and replace the smaller one.
Timer
LEDs
Pulse
Generator
Ring
Counter
Sound
Circuit
Figure 1
Figure 2
Sand
C1
C2
Power for all circuits
Battery
Warning circuit
Switch X1
C1
C2
Power for all circuits
Battery
Warning circuit
Switch X1
C1
C2
Power for all circuits
Battery
Warning circuit
Switch X1
Sand
9V
Battery
BT1
To Warning
Circuit
C7
100mF
R23
1.8MW
R21
4.7MW
Q8
2N3904
Q9
2N3904
C3
1mF
Q6
2N3906
Power for
all circuits
C8
100mF
S1
R22
1kW
Schematic Diagram
A
B
C
AK-300_REV-H_021715.qxp 1/27/16 8:41 AM Page 4
-4-
Assume 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
d
ump as shown in Figure 3b. Each time it flips, it
c
loses switch X2, sending the battery voltage to the
Ring Counter and it strikes the “Drumproducing 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
D41. 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
f
illing position shown in Figure 3a. The sand going into
t
he 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.
T
HE PULSE GENERATOR
A
B
Drum for sound
Sand
Spring
Bucket
X2
Battery
Electrical poles 0 Volts to ring counter
Drum for sound
Spring
Battery voltage to ring counter
Bucket
X2
Battery
Sand
Figure 3 Pulse Generator
AK-300_REV-H_021715.qxp 1/27/16 8:41 AM Page 5
T
HE SOUND CIRCUIT
In the sound generator circuit, a 500Hz oscillator is
always running. This oscillator is represented by the
spinning wheel in Figure 4a. No sound is heard
b
ecause the spinning wheel is not hitting the drum.
W
hen the bucket in Figure 3 dumps sand, the lever
arm pushes the spinning wheel against the stop and
the small balls on the spinning wheel hit the drum,
producing a high frequency sound (Figure 4b). The
lever arm turns the sound on and represents
transistor Q7 in Figure 4c. When the lever arm is
removed, the spring pulls the spinning wheel away
from the drum and the sound stops. In much the same
way, transistor Q7 turns off shortly after a pulse is
received. This action stops electrical current from
flowing through the piezoelectric buzzer (drum),
eliminating the sound. Just before power down,
transistor Q7 is turned on and kept on to produce the
warning sound.
THE RING COUNTER
In its simplest form, the ring counter can be compared
to a circle of buckets with only one bucket filled with
sand as shown in Figure 5a. Because of the weight
of the sand, the filled bucket hangs lower than all of
the rest. When a pulse is received from the pulse
generator circuit, it pushes the sand to the next bucket
as shown in Figure 5b. This process continues
passing the sand from bucket to bucket in a circle,
until no more pulses are received from the pulse
generator.
The Light Emitting Diodes (LEDs) are no more than
small electronic lights. If they are arranged in a circle
and connected to a ring counter, they can be used to
represent the ivory ball position on the roulette wheel.
When the buckets filled with sand stretch out the
springs in Figure 5, they could also close a switch as
shown in Figure 6. This would light the next light in
the circle and produce the effect of a ball spinning
around the roulette wheel. As the pulses get further
and further apart, the electronic ball will appear to
slow down and eventually stop.
THE LEDs
-5-
Spinning wheel
Bucket lever arm
Spring
Stop
Drum
Spinning wheel
Bucket lever arm
Spring
Stop
Drum
500Hz Oscillator
Piezoelectric
buzzer
From pulse
generator
Turns sound on
From ring
counter
4069
4
069
C
2
0.0033mF
R14
330kW
R134
47kW
R12
2
.2MW
U
2D
U2E
11
1098
R
11
100kW
BZ1
D2
1N4148
R16
2
0kW
Q
7
2N3904
R
17
56kW
C
5
0.47mF
Figure 4
Sound Circuit
A
B
C
Ring of buckets
Bucket filled with
sand hangs lower
than all of the rest.
Pulse plate
Moves up when pushed.
Pulse moves sand
to the next bucket.
Figure 5 Figure 6
AB
Bucket with
sand
Empty bucket
Light off
Light on
Power
Power
AK-300_REV-H_021715.qxp 1/27/16 8:41 AM Page 6
-6-
CONSTRUCTION
Solder
Soldering Iron
Foil
Solder
Soldering Iron
Foil
Component Lead
Soldering Iron
Circuit Board
Foil
Rosin
Soldering iron positioned
incorrectly.
Solder
Gap
Component Lead
Solder
Soldering Iron
Drag
Foil
1. Solder all components from the
copper foil side only. Push the
soldering iron tip against both the
lead and the circuit board foil.
2. Apply a small amount of solder to
the iron tip. This allows the heat to
leave the iron and onto the foil.
Immediately apply solder to the
opposite side of the connection,
away from the iron. Allow the
heated component and the circuit
foil to melt the solder.
1. Insufficient heat - the solder will
not flow onto the lead as shown.
3. Allow the solder to flow around the
connection. Then, remove the
solder and the iron and let the
connection cool. The solder
should have flowed smoothly and
not lump around the wire lead.
4.
Here is what a good solder
connection looks like.
2. Insufficient solder- let the solder
flow over the connection until it is
covered.
Use just enough solder to cover
the connection.
3. Excessive solder - could make
connections that you did not
intend to between adjacent foil
areas or terminals.
4. Solder bridges - occur when
solder runs between circuit paths
and creates a short circuit. This is
usually caused by using too much
solder.
To correct this, simply drag your
soldering iron across the solder
bridge as shown.
What Good Soldering Looks Like
A good solder connection should be bright, shiny, smooth, and uniformly
flowed over all surfaces.
Types of Poor Soldering Connections
I
ntroduction
The most important factor in assembling your AK-300 Electronic Roulette
Kit is good soldering techniques. Using the proper soldering iron is of
p
rime importance. A small pencil type soldering iron of 25 watts is
r
ecommended. The tip of the iron must be kept clean at all times and
well-tinned.
Solder
For many years leaded solder was the most common type of solder used
by the electronics industry, but it is now being replaced by lead-free
solder for health reasons. This kit contains lead-free solder, which
c
ontains 99.3% tin, 0.7% copper, and has a rosin-flux core.
Lead-free solder is different from lead solder: It has a higher melting point
than lead solder, so you need higher temperature for the solder to flow
properly. Recommended tip temperature is approximately 700
O
F; higher
t
emperatures improve solder flow but accelerate tip decay. An increase
i
n soldering time may be required to achieve good results. Soldering iron
tips wear out faster since lead-free solders are more corrosive and the
higher soldering temperatures accelerate corrosion, so proper tip care is
important. The solder joint finish will look slightly duller with lead-free
solders.
Use these procedures to increase the life of your soldering iron tip when
using lead-free solder:
Keep the iron tinned at all times.
Use the correct tip size for best heat transfer. The conical tip is the
most commonly used.
Turn off iron when not in use or reduce temperature setting when
u
sing a soldering station.
T
ips should be cleaned frequently to remove oxidation before it becomes
impossible to remove. Use Dry Tip Cleaner (Elenco
®
#SH-1025) or Tip
Cleaner (Elenco
®
#TTC1). If you use a sponge to clean your tip, then use
distilled water (tap water has impurities that accelerate corrosion).
S
afety Procedures
Always wear safety glasses or safety goggles to protect
your eyes when working with tools or soldering iron,
and during all phases of testing.
Be sure there is adequate ventilation when soldering.
L
ocate soldering iron in an area where you do not have to go around
it or reach over it. Keep it in a safe area away from the reach of
children.
Do not hold solder in your mouth. Solder is a toxic substance.
W
ash hands thoroughly after handling solder.
Assemble Components
In all of the following assembly steps, the components must be installed
on the top side of the PC board unless otherwise indicated. The top
legend shows where each component goes. The leads pass through the
corresponding holes in the board and are soldered on the foil side.
Use only rosin core solder.
DO NOT USE ACID CORE SOLDER!
AK-300_REV-H_021715.qxp 1/27/16 8:41 AM Page 7
Figure B
Mount the IC socket onto the PC board
with the notch in the same direction as
marked on the PC board. Then, mount
the IC onto the socket with the notches
in the same direction.
Figure A
Mount the LED onto the PC board
with the flat side of the LED in the
same direction as marked on the
PC board. Space the LEDs with a
paper clip. Make sure that it is ¼”.
-7-
ASSEMBLE COMPONENTS TO THE PC BOARD
I
dentify and install the following parts as shown. After soldering each part, place a check in the box provided.
Space the LEDs with a paper clip (use size shown below) so that they are 1/4” off of the PC board.
U1 - 16-pin IC socket
U1 - 4017 Integrated circuit (IC)
(see Figure B)
R1 - 1.2kW 5% 1/4W Resistor
R2 - 1.2kW 5% 1/4W Resistor
R3 - 1.2kW 5% 1/4W Resistor
R4 - 1.2kW 5% 1/4W Resistor
(brown-red-red-gold)
Q1 - 2N3904 Transistor
Q2 - 2N3904 Transistor
Q3 - 2N3904 Transistor
Q4 - 2N3904 Transistor
(see Figure C)
R5 - 10kW 5% 1/4W Resistor
R6 - 10kW 5% 1/4W Resistor
R7 - 10kW 5% 1/4W Resistor
R8 - 10kW 5% 1/4W Resistor
(brown-black-orange-gold)
Q5 - 2N3906 Transistor
(see Figure C)
U3 - 16-pin IC socket
U3 - 4017 Integrated circuit (IC)
(see Figure B)
C4 - 0.001mF (102) Capacitor
C5 - 0.47mF Electrolytic
(see Figure D)
R10 - 820kW 5% 1/4W Resistor
(gray-red-yellow-gold)
R11 - 100kW 5% 1/4W Resistor
(brown-black-yellow-gold)
D38 - LED Green
(see Figure A)
Q7 - 2N3904 Transistor
(see Figure C)
R16 - 20kW 5% 1/4W Resistor
(red-black-orange-gold)
C6 - 1mF Electrolytic
(see Figure D)
C7 - 100mF Electrolytic
C8 - 100mF Electrolytic
(see Figure D)
Flat
¼”
Figure C
Mount the transistor with the
flat side in the same direction
as marked on the PC board.
Flat
0.35”
max.
Notch
IC
Socket
PC board
Install jumper wires J1 – J40
using bare wire.
J1 – J40 - Jumper wires
(see Figure G)
Note: Install the
jumper wires first.
LED spacer (Actual size)
1/4”
AK-300_REV-H_021715.qxp 1/27/16 8:41 AM Page 8
-8-
C1 - 0
.02mF or 0.022mF
(203 or 223) Discap
R12 - 2.2MW 5% 1/4W Resistor
(red-red-green-gold)
R9 - 10kW 5% 1/4W Resistor
(brown-black-orange-gold)
R13 - 47kW 5% 1/4W Resistor
(yellow-violet-orange-gold)
R14 - 330kW 5% 1/4W Resistor
(orange-orange-yellow-gold)
D37 - LED green
(see Figure A)
C2 - 0.0033mF (332) Mylar cap.
(see Figure F)
D40 - 1N4148 Diode
(see Figure E)
C3 - 1mF Electrolytic
(see Figure D)
U2 - 14-pin IC socket
U2 - 4069 Integrated circuit (IC)
(see Figure B)
D39 - 1N4148 Diode
(see Figure E)
D41 - 1N4001 Diode
(see Figure E)
R19 - 1.5kW 5% 1/4W Resistor
(brown-green-red-gold)
R23 - 1.8MW 5% 1/4W Resistor
(brown-gray-green-gold)
R20 - 100kW 5% 1/4W Resistor
(brown-black-yellow-gold)
R22 - 1kW 5% 1/4W Resistor
(brown-black-red-gold)
D43 - 1N4001 Diode
(see Figure E)
ASSEMBLE COMPONENTS TO THE PC BOARD
I
dentify and install the following parts as shown. After soldering each part, place a check in the box provided.
Space the LEDs with a paper clip (use size shown below) so that they are 1/4” off of the PC board.
Figure D
Electrolytic capacitors have polarity. Be sure
to mount them with the negative (–) lead
(marked on the side) in the correct hole.
Bend the capacitor 90
O
as shown below.
Be sure that the negative lead is in the
correct hole on the PC board.
Warning: If the capacitor is connected with
incorrect polarity it may heat up and either
leak or cause the capacitor to explode.
Figure E
Mount the diode with the band in
the same direction as marked
on the PC board.
Band
Polarity marking
PC board marking
Figure F
Mount the mylar capacitor at a 45
O
angle to the
PC board with 0.35” maximum height as shown
below.
0.35”
max.
Figure G
Use the bare wire supplied to form a jumper wire.
Bend the wire to the correct length and mount it to
the PC board.
LED spacer (Actual size)
1/4”
AK-300_REV-H_021715.qxp 1/27/16 8:41 AM Page 9
R15 - 20kW 5% 1/4W Resistor
(red-black-orange-gold)
R17 - 56kW 5% 1/4W Resistor
(green-blue-orange-gold)
D42 - 1N4148 Diode
(see Figure E)
R24 - 270kW 5% 1/4W Resistor
(red-violet-yellow-gold)
R18 - 3.3MW 5% 1/4W Resistor
(orange-orange-green-gold)
R21 - 4.7MW 5% 1/4W Resistor
(yellow-violet-green-gold)
Q9 - 2N3904 Transistor
(see Figure C)
Q8 - 2N3904 Transistor
(see Figure C)
Q6 - 2N3906 Transistor
(see Figure C)
S1 - Switch
BT - Battery holder
BZ1 - Buzzer
3 Screw 2-56 x 5/16”
3 Nut 2-56 Hex
3 Flat Washer White
4” Wire 22 ga.
(see Figure H)
ASSEMBLE COMPONENTS TO THE PC BOARD
I
dentify and install the following parts as shown. After soldering each part, place a check in the box provided.
D1 – D36 - LED Red (be sure to note
the flat side when installing).
(see Figure A)
LED Spacer (Actual Size)
1/4”
Figure H
Mount the battery holder and buzzer to
the PC board as shown (1). Note:
Use a piece of Scotch Tape on the
brass part only to hold the buzzer in
place. Solder a wire from the
positive (+) battery holder lead to the
+BT point on the PC board (2). Solder
a ” wire from the negative (–) battery
holder lead to the –BT point on the PC
board. Solder a 1” wire from the outer
edge of the buzzer to –BZ1. Solder a
1½” wire from the inner circle of the
buzzer to +BZ1. Note: Do not let the
flat washers touch the silver part of the
buzzer of let the solder from the wire
from the outer edge touch the silver
part.
1. 2.
Battery holder
Scotch tape
2-56 Hex nut
Flat washer
Buzzer
PC board
legend side
2-56 x 5/16”
Screw
Buzzer
1” Wire
1½” Wire
+BZ1
” Wire
+BT
–BT
” Wire
–BZ1
-9-
AK-300_REV-H_021715.qxp 1/27/16 8:41 AM Page 10
-10-
COMPONENT CHECK
r Make sure that all components have been
mounted in their correct places.
r Make sure that the LEDs have been installed
correctly. The flat side of the LEDs should be in the
same direction as shown on the top legend.
r
Make sure that diodes D39 - D43 have not been
installed backwards. The band on the diodes should
be in the same direction as shown on the PC board.
r Make sure that transistors Q1 - Q9 are installed
with their flat sides in the same direction as marked
on the PC board.
r Are capacitors C5 - C8 installed correctly? These
capacitors have polarity. Be sure that the negative
lead is in the correct hole.
r Make sure that the ICs are installed correctly. The
notch should be in the same direction as shown on
the top legend of the PC board.
r Put a 9V alkaline battery into the battery holder and
push the switch.
TROUBLESHOOTING
One of the most frequently occurring problems is poor
solder connections.
1. Tug slightly on all parts to make sure that they are
indeed soldered.
2. All solder connections should be shiny. Resolder
any that are not.
3. Solder should flow into a smooth puddle rather
than a round ball. Resolder any connection that
has formed into a ball.
4. Have any solder bridges formed? A solder bridge
may occur if you accidentally touch an adjacent foil
by using too much solder or by dragging the
soldering iron across adjacent foils. Break the
bridge with your soldering iron.
FINAL ASSEMBLY
r Mount the four plastic spacers onto the four
corners of the PC board from the foil side with four
4-40 x ¼” black screws (see Figure I).
r Punch out and save the chips from the box as
shown in Figure J. Slide the PC board into the box
and mount the PC board with four 4-40 x ¼
screws and four black washers (see Figure K). Cut
the strip off of the box as shown.
r Tape the box lid shut (see Figure L) and you’re
ready to go!
Plastic spacer
Legend side of
PC board
4-40 x ¼”
Black screw
Figure I
4-40 x ¼” Black
screws
and black
washers
4-40 x ¼”
Black screws
and black
washers
Figure K
Cut
Tape
Figure J
Figure L
AK-300_REV-H_021715.qxp 1/27/16 8:41 AM Page 11
PROBABILITY
If among (F+U) equi-probable and mutually exclusive
events, F is regarded as favorable and U as
unfavorable, then for a single event, the probability of
a favorable outcome is:
The probability of an unfavorable outcome is 1 minus
the probability of a favorable outcome. In other words,
since there is the same chance that any number may
win on any spin (mutually exclusive events), the
chances of winning equals the number of winning
numbers divided by the total number of possible
numbers. Roulette has 38 possible numbers that may
win. Therefore, F+U is always equal to 38. If you
wager on a single number, the chances of winning are
1 divided by 38 or approximately 2.63%. Your odds of
losing that wager is approximately 97.37%. If you win,
the house pays you 36 times your wager. Multiplying
your chance of winning times your payback shows the
advantage for the house. In this case, the number is
94.74% which means the house has a 5.26%
advantage over the players wagering on a single
number.
If a wager is placed on black or red, the probability of
winning is 18 divided by 38 because the number of
black numbers and the number of red numbers is 18.
The probability of a favorable outcome is one color is
wagered equals 47.4%. The payout if you win is 2 to
1. This yields an advantage for the house of 1 - (0.474
x 2) or approximately 5.26%. As you can see, the
house always has a 5.3% advantage.
-11-
F
F+U
OPERATING INSTRUCTIONS
Strategies Explanation Payoff
A) Single Straight Chips on a number from 1-36 36 times
including 0 and 00.
B) Split Chips on two numbers vertically 18 times
or horizontally next to one another.
C) Street Chips on three numbers 12 times
horizontally in one line.
D) Corner Chips on four numbers vertically 9 times
and horizontally next to one another.
E) Line Chips on six numbers in two 6 times
horizontal lines next to one another.
F) Column Chips on twelve numbers in one 3 times
vertical line.
G) 1
S
T
Dozen Chips on twelve numbers in
2
N
D
Dozen 1
S
T
twelve, 2
N
D
twelve, or 3 times
3
RD
Dozen 3
RD
twelve.
H) Low or High Chips on eighteen numbers either 2 times
from 1 to 18 or from 19 to 36.
Chips on “Red” or “Black”
I) Red or Black Betting on all numbers 2 times
which are red or black.
Chips on “Odd” or “Even”
J) Odd or Even Betting on all numbers which 2 times
are either odd or even.
CHART A CHART B
If the LED stops at 0 or 00 (green LEDs), only the
players who have wagered directly on these
numbers win with a return of 35 times. Players who
have wagered on individual numbers do not lose on
0 or 00. They may take back their wager or leave it
for the next game at full value.
Chip Values
Gold $100
Green $25
Red $5
White $1
AK-300_REV-H_021715.qxp 1/27/16 8:41 AM Page 12
-12-
RULES FOR PLAYING ROULETTE
The object of the game is to increase the value of your
chips more than any other player. Chips with gold
centers are worth $100.00, green centers = $25.00,
red centers = $5.00, and white centers are worth
$1.00. Each player starts with 1 green, 2 red, and 5
white chips ($40.00). All the rest of the unused chips
belong to the house. Determine how long the roulette
table will be open, one hour for example. One person
must act as the Croupier (kroo-pee-eh). The Croupier
is the attendant who collects and pays the stakes
using the houses money. Since there is no way to
predict the outcome of each spin, the Croupier may
also be a player. It is possible for a person to play
roulette alone and try to beat the house by increasing
his total chip value.
The very first action in roulette is to place your wager
on the gaming table. The types of bets and their rates
of return are listed in Chart A. The method for placing
a wager is shown in Chart B. Placing wagers starts
when the Croupier announces “Place your Wagers!”.
All wagers must be in place when the Croupier
announces “No more wagers!”.
After all wagers have been placed, the start button is
pressed by the Croupier and the lit LED that
represents the ivory ball races around the circle
adding excitement and anticipation to the game. The
number next to the lit LED, when the motion stops, is
the winning number. All wagers are paid by the
Croupier according to the rates of return listed in
Chart A.
The game ends when the house runs out of chips or
the predetermined time period expires. To prevent a
person from doubling his wager until he wins, a
maximum limit of $100 should be placed on each
wager. When a player loses all of their chips, they
may borrow from other players at whatever interest
rate that player demands. At no time may a player
borrow more than $40.00. Once a player owes $40.00
and has lost all of their chips, they are bankrupt and
can no longer place wagers. A bankrupt player may
assume the position of Croupier and earn $1.00 from
the house for every 10 spins to remain in the game. A
Croupier who is not bankrupt is paid no salary by the
house.
SCHEMATIC DIAGRAM
AK-300_REV-H_021715.qxp 1/27/16 8:41 AM Page 13
-13-
WORD GLOSSARY
Capacitor An electrical component that can
store electrical pressure (voltage)
f
or periods of time.
Cold Solder Joint Occurs because insufficient heat
was applied or the connection
was moved before the solder had
set. Connection looks crystalline,
crumbly, or dull.
Flux A substance that is used to
cleanse the surface of oxide
before it is soldered. Always used
in electronics work. Most of the
solder used in electronics has flux
built right into it.
Heat Sinking A process of keeping the
component from becoming
overheated during soldering. Any
metal object that can be clamped
to the component lead will work
as an effective heat sink. An
alligator clip or pliers work well.
Integrated Circuit (IC) A type of circuit in which
transistors, diodes, resistors, and
capacitors are all constructed on
a semiconductor base.
Jumper Wire A wire that is connected from one
place to another on a PC board,
thereby making a connection
between two pads.
LED Common abbreviation for light
emitting diode.
Light Emitting Diode A diode made from gallium
arsenide that has a turn-on
energy so high that light is
generated when current flows
through it.
Oxidation Most metals, when exposed to air,
form an oxide on their surface
which prevents solder from
adhering to the metal.
Polarity The division of two opposing
forces or properties.
Printed Circuit Board A board used for mounting
electrical components.
Components are connected using
metal traces “printed” on the
board instead of wires.
Resistor Component used to control the
flow of electricity in a circuit. It is
m
ade of carbon.
Rosin Core Solder The most common type of solder
used in electronics generally
referred to as 63/37 rosin core
solder.
Solder A tin/lead alloy that melts at a very
low temperature, used to join
other metals together. It produces
excellent electrical connections.
Solder Bridge An unwanted solder connection
between two points that are close
together.
Solder Melting Point The temperature at which a
tin/lead alloy (solder) melts. The
common solder used in
electronics (63% tin / 37% lead)
has a melting point of 370
O
F.
Solder Wick Braided wire coated with flux to
effectively remove solder from a
connection.
Soldering The process of joining two or
more metals by applying solder to
them.
Tack Soldering A connection where the lead or
wire does not have any
mechanical support.
Tinning the Tip A process of coating the soldering
iron tip with solder to minimize the
formation of oxide on the tip,
which would reduce the amount of
heat transfer.
Transistor An electronic device that uses a
small amount of current to control
a large amount of current.
Wire Gauge Refers to the size of the wire. The
bigger the number, the smaller the
diameter of the wire.
18 gauge to 24 gauge is generally
used for hook-up in electronics.
AK-300_REV-H_021715.qxp 1/27/16 8:41 AM Page 14
-14-
Space War Gun
K-10
Rapid fire or single shot
with 2 flashing
LEDs.
0-15V Power Supply
K-11
A low-cost way to
supply voltage
to electronic
games, etc.
0-15VDC
@ 300mA
Christmas Tree
K-14
LED Robot Blinker
K-17
You’ll have fun displaying the PC
board robot.
Learn about
free-running
oscillators.
Digital Bird
K-19
You probably have never heard
a bird sing this way before.
Nerve Tester
K-20
Test your ability
to remain
calm.
Indicates
failure by a
lit LED or mild
shock.
Yap Box
K-22A
This kit is a hit
at parties.
Makes 6
exciting
sounds.
Burglar Alarm
K-23
Alarm for your car, house, room,
or closet.
Whooper Alarm
K-24
Can be used as a
sounder or siren.
Metal Detector
K-26
Find new money and old
treasure. Get started in this
fascinating
hobby.
Pocket Dice
K-28
To be used with any game of
chance.
FM Microphone
AK-710/K-30
Learn about microphones, audio
amplifiers, and RF oscillators.
Range up to 100 feet.
Telephone Bug
K-35
Our bug is only the size of a
quarter, yet transmits both sides
of a telephone conversation to
any FM radio.
Sound Activated Switch
K-36
Clap and the light comes on . . .
clap again and it goes off.
Lie Detector
K-44
The sound will tell if
you are lying. The
more you lie, the
louder the sound
gets.
Motion Detector
AK-510
Use as a sentry,
m e s s a g e
m i n d e r ,
burglar alarm,
or a room
detector.
Two IC AM Radio
AM-780K
New design - easy-to-build,
complete radio on a single PC
board. Requires 9V battery.
Transistor Tester
DT-100K
Test in-circuit
transistors and
diodes.
0-15VDC Variable Voltage
DC Power Supply Kit
XP-15K
Ideal for students,
technicians, and
hobbyists. Great
for breadboarding.
Auto-scan FM Radio Kit
FM-88K
Unique design - two-IC FM
receiver with training course.
EDUCATION KITS
Complete with PC Board and Instruction Book
R
equires
9
V battery
R
equires
9
V battery
R
equires 9V battery
R
equires
9V battery
Requires
9V battery
Requires 2
“AA” batteries
Training course included
Requires 9V battery
Requires
9V battery
Requires
9V battery
R
equires
9V battery
Produces flashing
colored LEDs and
three popular
Christmas
melodies.
Requires
9V battery
Requires
9V battery
Requires
9V battery
Requires
9V battery
Requires
9V battery
No batteries
required!
Requires 9V battery
AK-300_REV-H_021715.qxp 1/27/16 8:41 AM Page 15
ELENCO
®
150 Carpenter Avenue
Wheeling, IL 60090
(847) 541-3800
Website: www.elenco.com
QUIZ
1
. In electronics, a capacitor is a . . .
r A. counter.
r B. generator.
r C. light emitting device.
r D. storage device.
2. The Timer Circuit is used to . . .
r A. turn power on.
r B. keep track of time.
r C. turn power off.
r D. make pulses.
3. The Ring Counter is triggered by . . .
r A. the pulse generator.
r B. the timer.
r C. LEDs.
r D. the sound circuit.
4. LED means . . .
r A. light emitting device.
r B. light emitting diode.
r C. long electronic delay.
r D. light electric diode.
5. The probability of winning a wager placed on four
numbers in electronic roulette is . . .
r A. 21%.
r B. 89%.
r C. 11.11111%.
r D. 10.5263%.
6
. The house advantage for a four-number wager in
electronic roulette is . . .
r A. 5.26%.
r B. 11%.
r C. 89.5%.
r D. 21%.
7. In the sound circuit, the 500 hertz oscillator is . . .
r A. a warning.
r B. turned on by pulses.
r C. turned on by counter.
r D. always running.
8. The slowing down motion is due to . . .
r A. the ring counter.
r B. the timer.
r C. pulses being further apart.
r D. the probability changing.
9. The sound is turned on by . . .
r A. LEDs.
r B. the pulse generator.
r C. the timer.
r D. the 500 hertz oscillator.
10. An analogy is . . .
r A. an electronic device.
r B. a similar system.
r C. a diagram.
r D. a drawing.
Answers: 1. D; 2. C; 3. A; 4.B; 5. D; 6. A; 7. D; 8. C; 9. B; 10. B
AK-300_REV-H_021715.qxp 1/27/16 8:41 AM Page 16