Elenco Electronics 202 User Manual
Page 65
Project #137
Ambulance Symphony
Project #136
Police Car Symphony
-64-
OBJECTIVE: To combine sounds from the integrated circuits.
OBJECTIVE: To combine sounds from the music, alarm, and
space war integrated circuits.
Modify the circuit from project #136 to match the circuit shown on the
left. The only differences are the connections around the alarm IC
(U2). It works the same way.
Build the circuit shown and note that in some places parts are stacked
on top of each other. Turn it on and press the press switch (S2) several
times and wave your hand over the photoresistor (RP) to hear the full
spectrum of sounds that this circuit can create. Have fun!
Do you know why the antenna (A1) is used in this circuit? It is being
used as just a 3-snap wire, because it acts like an ordinary wire in low
frequency circuits such as this. Without it, you don’t have enough
parts to build this complex circuit.
- Upgrade Kit SC100 to SC300 (76 pages)
- Snap Circuits Jr.® Educational 100 Exp. (48 pages)
- Upgrade Kit SC300 to SC500 (64 pages)
- Snap Rover ® (24 pages)
- XP&trade (64 pages)
- Snap Circuits LIGHT ® (84 pages)
- Snap Circuits Extreme® Educational 750 Exp. (88 pages)
- Projects PC1-PC73 (60 pages)
- Snaptricity® (92 pages)
- Upgrade Kit SCROV10 to SCROV50 (48 pages)
- Snap Circuits Green ® (80 pages)
- C Adapter for Snap Circuits® (2 pages)
- Motion Detector Kit (20 pages)
- Digital Roulette Kit (16 pages)
- FM Wireless Microphone Kit (12 pages)
- AM Radio Kit (32 pages)
- AM Radio Kit (36 pages)
- AM/FM Radio Kit (64 pages)
- Circuit Maker Skill Builder 125 (64 pages)
- Circuit Maker Sound Plus 200 (80 pages)
- Understanding Logic Gates (16 pages)
- Understanding Logic Gates and Circuits (42 pages)
- Tumbling Robot (12 pages)
- Solar Energy (16 pages)
- C2D Scope (16 pages)
- 288x Astrolon Telescope with Aluminum Tripod (1 page)
- Simulated Frog Dissection Kit (1 page)
- Talking Galaxy Planetarium with Night Light (1 page)
- Night’n Day® (10 pages)
- Radio Controlled Black Widow (1 page)
- Handheld Microscope (2 pages)
- Water Filtration Kit (8 pages)
- 6-in-1 Solar Kit (18 pages)
- Microscope Set in Carrying Case (1 page)
- Mobile 20 Telescope (1 page)
- Mechanical Drum (20 pages)
- Aerial Screw (20 pages)
- Swing Bridge (20 pages)
- Printing Press (24 pages)
- MultiBarrel Cannon (20 pages)
- Armored Car (24 pages)
- Paddleboat (20 pages)
- SelfPropelled Cart (20 pages)
- Catapult (24 pages)