Elenco Electronics ELECTRONIC SNAP CIRCUITS SC-300R Instruction Manual

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Summary of Contents for Elenco Electronics ELECTRONIC SNAP CIRCUITS SC-300R

Page 1 Copyright © 2003 by Elenco Electronics, Inc. All rights reserved. No part of this book shall be reproduced by REV-E Revised 2004 753098 any means; electronic, photocopying, or otherwise without written permission from the publisher.
Page 2 Table of Contents Basic Troubleshooting MORE Advanced Troubleshooting Parts List Project Listings 6, 7 MORE About Your Snap Circuits Parts Experiments 102 - 305 8 - 73 MORE DO’s and DON’Ts of Building Circuits More Snap Circuits Projects WARNING: SHOCK HAZARD - Never WARNING: Always check your wiring before turning on a circuit.
Page 3 Parts List (Colors and styles may vary) Symbols and Numbers Note: There are additional part lists in your other project manuals. Important: If any parts are missing or damaged, DO NOT RETURN TO RETAILER. Call toll-free (800) 533-2441 or e-mail us at: help@elenco.com.
Page 4 MORE About Your Snap Circuits Parts (Part designs are subject to change without notice). antenna (A1) contains a coil of wire wrapped around an iron bar. Although it has magnetic effects similar to those in the motor, Note: If you have Model SC-300 or SC-500, there is additional those effects are tiny and may be ignored except at high information in your other project manual(s).
Page 5 MORE DO’s and DON’Ts of Building Circuits After building the circuits given in this booklet, you may wish to experiment on your Examples of SHORT CIRCUITS - NEVER DO THESE!!! own. Use the projects in this booklet as a guide, as many important design concepts are introduced throughout them.
Page 6 MORE Advanced Troubleshooting (Adult supervision recommended) 100Ω Ω K resistor (R5) and 0.02µ µ F (C1), 0.1µ µ F (C2), and 10µ µ F Elenco Electronics is not responsible for parts damaged due to (C3) capacitors: Build project 206, it makes sound unless the incorrect wiring.
Page 7 Project Listings Project # Description Page # Project # Description Page # Project # Description Page # Batteries in Series High Frequency Touch Buzzer PNP Light Control Batteries in Parallel High Frequency Water Buzzer PNP Dark Control Spacey Fan Mosquito Red &...
Page 8 Project Listings Project # Description Page # Project # Description Page # Project # Description Page # Make Your Own Battery (II) Trombone Photoresistor Control Make Your Own Battery (III) Race Car Engine Microphone Control Tone Generator Power Amp Pressure Alarm Tone Generator (II) Electronic Kazoo Power Microphone...
Page 9 Project #102 Batteries in Series OBJECTIVE: To show the increase in voltage when batteries are When you close the slide switch (S1), current flows from the batteries through the slide switch (S1), the 100Ω resistor (R1), the LED (D1), through the LED (D2), and back to the second group of batteries (B1). Notice how both LEDs are lit.
Page 10 Project #104 Project #105 Spacey Fan Two-Transistor Light Alarm OBJECTIVE: To build a fan with space war sounds that is This light alarm circuit uses two (2) transistors and both sets of batteries. Build the circuit with Place the fan onto the motor. the jumper connected as shown, Space war sounds are heard if and turn it on.
Page 11 Project #107 Automatic Street Lamp OBJECTIVE: To show how light is used to control a street lamp. Press the press switch (S2) on and set the adjustable resistor (RV) so the lamp just lights. Slowly cover the photoresistor (RP) and the lamp brightens.
Page 12 Project #110 Adjustable Tone Generator OBJECTIVE: To show how resistor values change the frequency of an oscillator. Turn on the slide switch (S1), the speaker (SP) will sound and the LED (D2) will light. Adjust the resistor (RV) to make different tones. In an oscillator circuit, changing the values of resistors or capacitors can vary the output tone or pitch.
Page 13 Project #113 Light & Sounds OBJECTIVE: To build a police siren with light. Turn on the slide switch (S1). A police siren is heard and the lamp lights. Project #114 Project #115 Project #116 Project #117 More Light & More Light & More Light &...
Page 14 Project #118 Motor Speed Detector OBJECTIVE: To show how to make electricity in one direction. When building the circuit, be sure to position the motor with the positive (+) side snapped to the 470µF capacitor (C5). Turn on the slide switch (S1), nothing will happen. It is a motor speed detector, and the motor isn't moving.
Page 15 Project #120 Space War Sounds OBJECTIVE: To build a circuit that produces multiple space war sounds. Set the slide switch (S1) to the OFF position. Press the press switch (S2) down and a space sound will be played. If you hold the press switch down the sound repeats.
Page 16 Project #122 Space War Radio OBJECTIVE: To transmit Space War sounds to a AM radio. Place the circuit next to an AM radio. Tune the radio so no stations are heard and turn on the slide switch (S1). You should hear the space war sounds on the radio.
Page 17 Project #124 NPN Amplifier OBJECTIVE: To compare transistor circuits. There are three connection points on an NPN transistor, called base (marked B), emitter (marked E), and collector (marked C). When a small electric current flows from the base to the emitter, a larger ( amplified ) current will flow from the collector to the emitter.
Page 18 Project #126 Sucking Fan Project #127 Blowing Fan OBJECTIVE: To adjust the speed of a fan. OBJECTIVE: To build a fan that Build the circuit, and be sure to orient the motor with won’t come off. the positive (+) side down as shown. Turn it on, and set the adjustable resistor for the fan speed you like best.
Page 19 Project #130 Project #131 NPN Collector NPN Emitter OBJECTIVE: To compare OBJECTIVE: To compare transistor circuits. transistor circuits. Compare this circuit to that in Compare this circuit to that in Project #128, it is the NPN Project #129. It is the NPN transistor version and works the transistor version and works the same way.
Page 20 Project #134 Buzzing in Project #135 the Dark Touch Buzzer OBJECTIVE: To make a circuit that OBJECTIVE: To build a human buzzer Remove the photoresistor (RP) from the circuit in Project #134 and instead touch your fingers across where it used to be (points B1 This circuit makes a high-frequency and D1 on the grid) to hear a cute buzzing screaming sound when light shines on...
Page 21 Project #139 High Project #140 Sensitivity Louder Voice Doorbell Doorbell OBJECTIVE: To build a OBJECTIVE: To build a loud highly sensitive voice-activated highly sensitive voice-activated doorbell. doorbell. Build the circuit and wait until the sound stops. Clap or talk loud a Replace the 6V lamp (L2) with few feet away and the music the antenna coil (A1), the sound...
Page 22 Project #145 Radio Music Project #146 Alarm Daylight Music Radio OBJECTIVE: To build a light- You need an AM radio for this project. Build the circuit on the left and turn on the switch. Place it next to your AM radio and tune the radio frequency to where no other station is transmitting.
Page 23 Project #151 Blow Off a Space War Build the circuit and turn it on, you hear a space war. Since it is loud and annoying, try to shut it blowing into microphone (X1). Blowing hard into the microphone stops the sound, and then it starts again.
Page 24 Project #154 Fire Fan Symphony Project #155 Fire Fan OBJECTIVE: To combine sounds Symphony (II) from the music, alarm, and space war integrated circuits. OBJECTIVE: See Project #154. Build the circuit shown and add the jumper to complete it. Note that in one place two (2) single snaps are stacked on top of each other.
Page 25 Project #158 Police Car Symphony Project #159 Police Car OBJECTIVE: To combine sounds Symphony (II) OBJECTIVE: Build the circuit shown and add the two (2) jumper wires to complete it. Note that in one place two (2) single snaps are stacked on top of each other.
Page 26 Project #162 Static Symphony Project #163 Static OBJECTIVE: To combine sounds Symphony (II) from the integrated circuits. OBJECTIVE: See Project #162. Build the circuit shown and add the The preceding circuit may be too jumper wire to complete it. Note that loud, so replace the speaker (SP) in one place 2 single snaps are with the whistle chip (WC).
Page 27 Project #166 Water Detector OBJECTIVE: To show how water conducts electricity. Build the circuit at left and connect the two jumpers to it, but leave the loose ends of the jumpers lying on the table initially. Turn on the switch - the LED (D1) will be dark because the air separating the jumpers has very high resistance.
Page 28 Project #168 Project #169 NPN Light Control NPN Dark Control OBJECTIVE: To compare OBJECTIVE: To compare transistor circuits. transistor circuits. switch, switch, brightness of the LED depends brightness of the LED depends on how much light shines on the on how LITTLE light shines on photoresistor.
Page 29 Project #172 Project #173 Red & Green Control Current Controllers OBJECTIVE: To demonstrate OBJECTIVE: To compare how the adjustable resistor types of circuits. works. Build the circuit and turn on the slide switch (S1), the LED (D1) will be lit. Turn on the circuit using the slide To increase the LED brightness, turn switch (S1) and/or the press...
Page 30 Project #176 Blow Off a Doorbell Project #177 Blow Off a OBJECTIVE: To turn off a circuit Candle OBJECTIVE: To turn off a Build the circuit and turn it on, music plays. Since it is loud and annoying, try to shut it off by blowing into the microphone (X1).
Page 31 Project #180 Screaming Fan Project #181 Whining Fan OBJECTIVE: To have an adjustable Build the circuit on the left. Note that the 0.1µF capacitor (C2) is specially mounted above the NPN transistor (Q2); its left side is on level 4 while the right side is on Replace the 0.1µF capacitor (C2) with the level 3.
Page 32 Project #185 Whiner Project #186 Lower Pitch OBJECTIVE: To build a circuit that makes a loud whine. Whiner OBJECTIVE: To show how adding capacitance reduces frequency. Build the circuit, turn it on, and move the setting on the adjustable resistor. makes a loud, annoying whine sound.
Page 33 Project #190 Hissing Foghorn OBJECTIVE: To build a transistor oscillator that can make a foghorn sound. Build the circuit on the left and move the adjustable resistor setting. Sometimes it will make a foghorn sound, sometimes it will make a hissing sound, and sometimes it will make no sound at all.
Page 34 Project #193 Light Alarm Project #194 Brighter OBJECTIVE: To build a transistor light alarm. Light Alarm OBJECTIVE: To build a brighter transistor light alarm. Build the circuit with the jumper connected as shown, and turn it on. Nothing happens. Break the jumper connection and the light turns on.
Page 35 Project #197 Water Alarm OBJECTIVE: To sound an alarm when water is Build the circuit at left and connect the two (2) jumpers to it, place the loose ends of the jumpers into an empty cup (without them touching each other). Press the press switch (S2) - nothing happens.
Page 36 Project #199 Pitch Project 200 Project 201 Pitch (II) Pitch (III) OBJECTIVE: To show how to change the pitch of a OBJECTIVE: OBJECTIVE: sound. See Project #199. See Project #199. Build the circuit on the left, turn Remove the 0.1uF capacitor and it on, and vary the adjustable Since we’ve seen we can replace the 100kΩ...
Page 37 Project #203 Make Your Own Battery OBJECTIVE: To demonstrate how batteries can store electricity. Build the circuit, then connect points Y & Z (use a 2-snap wire) for a moment. Nothing appears to happen, but you just filled up the 470µF capacitor with electricity.
Page 38 Project #206 Tone Generator OBJECTIVE: To build a high-frequency oscillator. Build the circuit and turn it on, you hear a high-frequency sound. Project #207 Project #208 Project #209 Tone Tone Tone Generator (II) Generator (III) Generator (IV) OBJECTIVE: To lower the frequency of a OBJECTIVE: To lower the frequency of a OBJECTIVE: To lower the frequency of a tone by increasing circuit capacitance.
Page 39 Project #210 More Tone Generator OBJECTIVE: To build a middle-frequency oscillator. Build the circuit, as the name suggests this circuit is similar to that in project #206. Turn it on, you hear a middle-frequency sound. Project #211 Project #212 More Tone More Tone Generator (II) Generator (III)
Page 40 Project #213 Music Radio Station Project #214 Alarm Radio OBJECTIVE: To create music and Station transmit it to a radio. OBJECTIVE: To create music and transmit it to a radio. You need an AM radio for this project. Build the circuit shown on the left and turn on the switch.
Page 41 Project #216 Motor & Lamp by Sound OBJECTIVE: To control a motor using light. Turn the switch on, the motor spins and the lamp lights. As you move your hand over the photoresistor, the motor slows. Now place finger onto the photoresistor to block the light. The motor slows down. In a few seconds, the motor speeds up again.
Page 42 Project #219 Laser Gun with Limited Shots OBJECTIVE: To build the circuit used in a toy laser gun with flashing laser light and trigger and limited amount of shots. When you close the press switch (S2), the integrated circuit should start sounding a very loud laser gun sound.
Page 43 Project #222 Transistor Amplifiers OBJECTIVE: To learn about the most important component in electronics. When you place one or more fingers across the two snaps marked X & Y you will notice the light comes on. The two transistors are being used to amplify the very tiny current going through your body to turn on the LED.
Page 44 Project #225 Auto-Off Night-Light OBJECTIVE: To learn about one device that is used to delay actions in electronics. When you turn on the slide switch (S1) the first time the light will come on and very slowly get dimmer and dimmer. If you turn the slide switch (S1) off and back on after the light goes out it will NOT come on again.
Page 45 Project #228 Morse Code Generator OBJECTIVE: To make a Morse code generator and learn to generate code. When you press down on the press switch (S2) you will here a tone. By pressing and releasing the press switch you can generate long and short tones called Morse code.
Page 46 Project #233 Mind Reading Game OBJECTIVE: To make an electronic game of mind reading. Shorting Bar for Build the circuit shown on the left. It uses W, X, Y, or Z. two (2) 2-snap wires as shorting bars. Setup: Player 1 sets up by placing one Paper Sheet to shorting bar under the paper on row A, B, C, hide position of...
Page 47 Project #234 Enhanced Quiet Zone Game Shorting Bar for OBJECTIVE: Make and play the electronic game of "Quiet W, X, Y, or Z. Zone". Paper Sheet to hide position of Use the circuit from Project 233, but place three (3) 2-snap wires shorting bar.
Page 48 Project #236 Sound Wave Magic OBJECTIVE: To show how sound waves travel on a paper surface. Build the circuit shown on the left and connect the speaker using the two (2) jumper wires. Then, lay the speaker on a flat hard surface. Setup: Use some paper and scissors to cut out a rectangular pattern.
Page 49 Project #238 Trombone OBJECTIVE: To build an electronic trombone that changes pitch When you turn on the slide switch (S1) the trombone should start playing. To change the pitch of the note, simply slide the adjustable resistor control (RV) back and forth. By turning the slide switch (S1) on and off and moving the slider, you will be able to play a song much like a trombone player makes music.
Page 50 Project #240 Power Amp OBJECTIVE: To check stability of power amplifier with open When you turn on the slide switch (S1), the power amplifier should not oscillate. You should be able to touch point X with your finger and hear static.
Page 51 Project #242 AM Radio OBJECTIVE: To make a complete working AM radio. When you close the slide switch (S1), the integrated circuit (U5) should amplify and detect the AM radio waves all around you. The variable capacitor (VC) can be tuned desirable station.
Page 52 Project #243 Fire Engine Symphony Project #244 Fire Engine OBJECTIVE: To combine sounds Symphony (II) from the music, alarm, and space OBJECTIVE: Build the circuit shown and add the jumper to complete it. Note that in two places two (2) single snaps are stacked on top of each other.
Page 53 Project #246 Two-Finger Touch Lamp OBJECTIVE: To show that your body can be used as an electronic component. Build the circuit on the left. You’re probably wondering how it can work, since one of the points on the NPN transistor (Q2) is unconnected. It can’t, but there is another component that isn’t shown.
Page 54 Project #248 Space Battle Project #249 Space Battle (II) OBJECTIVE: To show how sound can turn "ON" an electronic device. OBJECTIVE: To show how light can turn "ON" an electronic device. Build the circuit shown on the left. Activate the circuit by flipping the switch or pressing Replace the slide switch (S1) with the the press switch (S2), do both several times photoresistor (RP).
Page 55 Project #252 Storing Electricity OBJECTIVE: To store electricity in a capacitor. Turn the switch on and connect point A and B with a 2-snap wire. The green LED will flash and the capacitor will be charged with electricity. The electricity is now stored in the capacitor. Disconnect point A and B.
Page 56 Project #255 Radio Music Burglar Alarm OBJECTIVE: To build an alarm that plays music on the radio. Place the circuit next to an AM radio. Tune the radio so no stations are heard. Set the slide switch (S1) on. You should hear the song play. The red LED should also be lit.
Page 57 Project #257 Motion Detector OBJECTIVE: Build a circuit that detects motion. Set the adjustable resistor (RV) to the center position. Turn the switch on and the LED lights. Wave your hand over the photoresistor (RP) and the LED turns off and on. The resistance changes as the amount of light strikes the photoresistor.
Page 58 Project #259 Oscillator 0.5 - 30Hz OBJECTIVE: To build a 0.5Hz - 30Hz oscillator that will light an LED. Set the adjustable resistor (RV) to the bottom position and then turn the switch on. The LED will start flashing at a frequency of 0.5Hz (once every two seconds). Slowly adjust the adjustable resistor and the LED flashes faster.
Page 59 Project #262 Motor Rotation Place the fan onto the motor. Press the press switch (S2). The fan rotates clockwise. When you connect the positive (+) side of the battery to the positive (+) side of the motor, it spins clockwise. Release the press switch and turn on the slide switch (S1).
Page 60 Project #265 High Pitch Bell OBJECTIVE: To build a high pitch bell. Build the circuit shown and press the press switch (S2). The circuit starts to oscillate. This generates the sound of a high pitch bell. Project #266 Steamboat Whistle OBJECTIVE: To build a steamboat whistle.
Page 61 Project #269 Noise-Activated Burglar Alarm OBJECTIVE: To build a noise activated alarm. Set the switch on and wait for the sound to stop. Place the circuit into a room you want guarded. If a thief comes into the room and makes a loud noise, the speaker will sound again.
Page 62 Project #272 Photoresistor Control OBJECTIVE: To use a photoresistor to control the brightness of an LED. In this circuit, the brightness of the LED depends on how much light shines directly on the photoresistor. If the photoresistor were held next to a flashlight or other bright light, then the LED would be very bright.
Page 63 Project #274 Pressure Alarm OBJECTIVE: To build a pressure alarm circuit. Connect two jumper wires to the whistle chip (WC) as shown. Set the control of the adjustable resistor (RV) to the far left and turn on the switch. There is no sound from the speaker and the LED is off. Tap the center of the whistle chip.
Page 64 Project #276 LED Fan Rotation Indicator OBJECTIVE: To build an LED fan rotation indicator. Place the fan onto the motor. Turn the slide switch (S1) on. The fan rotates clockwise, the green LED and the lamp light. When you connect the positive (+) side of the battery to the positive (+) side of the motor, it spins clockwise.
Page 65 Project #278 Sound Mixer OBJECTIVE: To connect two sound ICs together. In the circuit, the outputs from the alarm and music ICs are connected together. The sounds from both ICs are played at the same time. Project #279 Sound Mixer Fan Driver OBJECTIVE: To connect two sound ICs together to drive two...
Page 66 Project #280 Electric Fan Stopped by Light OBJECTIVE: To show how light can control a motor. Turn the slide switch (S1) on and set the adjustable resistor (RV) control so the motor just starts spinning. Slowly cover the photoresistor (RP) and the motor spins faster. By placing more light over the photoresistor, the motor slows.
Page 67 Project #282 Start-Stop Delay OBJECTIVE: To start and stop a motor with light. Place the fan on the motor. Turn the switch on, the motor starts spinning. As you move your hand over the photoresistor, the motor slows. Now place a finger on top of the photoresistor to block the light. The motor slows down.
Page 68 Project #284 Mail Notifying Electronic Bell Project #285 Mail Notifying OBJECTIVE: To build a circuit to indicate if you have mail by Electronic Fan Turn the switch on. If there is light on OBJECTIVE: To build a circuit to the photoresistor, the speaker will not make any sound.
Page 69 Project #288 AM Radio with Transistors OBJECTIVE: To build a complete, working AM radio with transistor output. When you close the slide switch (S1), the integrated circuit (U5) should amplify and detect the AM radio waves. Tune the capacitor (CV) to the desirable station.
Page 70 Project #290 Music Amplifier OBJECTIVE: To amplify sounds from the music integrated circuit. Build the circuit and turn on the switch. You will hear loud music, since the sound from the music integrated circuit is amplified by the power amplifier integrated circuit. All radios and stereos use a power amplifier.
Page 71 Project #293 Police Siren Amplifier OBJECTIVE: To amplify sounds from the music integrated circuit. Build the circuit and turn on the switch. You will hear a very loud siren, since the sound from the alarm integrated circuit is amplified by the power amplifier integrated circuit.
Page 72 Project #296 Leaky Capacitor OBJECTIVE: To show how capacitors can leak. Build the circuit (be sure the positive (+) side of the capacitor is towards the left) and turn on the switch. The green light emitting diode (LED, D2) will flash brightly as the capacitor (C5) charges up and then becomes dim but will not be off.
Page 73 Project #299 Blowing Space War Sounds OBJECTIVE: To change space war sounds by blowing. Turn on the switch and you will hear explosion sounds and the lamp is on or flashing. Blow into the microphone (X1) and you can change the sound pattern.
Page 74 Project #302 Adjustable Project #303 Time Delay Adjustable Time Lamp (II) Delay Fan (II) OBJECTIVE: To build a lamp that OBJECTIVE: To build a fan that stays on for a while. stays on for a while. Be sure to use the 6V lamp (L2) for Replace the lamp (L2) with the motor this circuit.
Page 75 OTHER FUN ELENCO PRODUCTS! For a listing of local toy retailers who carry our products, visit our website: www.elenco.com or call us toll-free at 1-800-533-2441. Snap Circuits Pro Deluxe Telephone Kit Model SC-500 Model AK-750 • Fully Modular • Hearing Aid Compatible •...
Page 76 Elenco Electronics, Inc. 150 W. Carpenter Avenue Wheeling, IL 60090 (847) 541-3800 http://www.elenco.com e-mail: elenco@elenco.com...

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