33 in 1 Deluxe Electronic Exploration kit By: Emil Boyagoda, Thomas O’Rourke,

Speakers Speakers are electromechanical transducers which transforms electrical current into sound

Electrolytic Capacitor

Electrolytic Capacitor A electrical device that contains polarity. They have positive and negative electrodes. The capacitor job is to store electricity. The capacitor functions as a a type of filter that passes AC current and blocks DC current.

Disc Capacitor Disc capacitors very small, circular figure that contains a ceramic dielectric which is a material that is a poor conductor of electricity but a very good supporter of any electro static field.

Transistor

Transistor Introduced in the 20th century by Walter Brattain, William Shockley, and John Bardeen. The transistor has allowed the creation of the integrated circuit (IC). A basic transistor is a 3 lead device that has a base, collector and emitter lead. Transistors have polarity and can amplify weak signals, switch higher current loads with a small signal output. Transistors use lower amounts of electricity, they’re smaller, and produce less heat than vacuum tubes.

Electromagnetic Coil

Electromagnetic Coil The electromagnetic coil results in electromagnetism, which is the production of a magnetic field caused by current flowing through a wire. The electromagnetic coil consists of a coil of wire that is wound around an iron or ferrite core.

lamp A lamp is a type of fixture in a electrical device that is used to illuminate and create artificial light. The reflector is used to direct the light. Lamps have no polarity. Lamps produce light from electricity. The two types of lamps are incandescent type and the fluorescent types.

LED

LED LED or Light Emitting Diode. LED has a PN junction of semi conducting material that transforms electrical current into photons. You never connect a LED into a 9v battery unless you have a 100 ohm resistor in series. The LED cannot work with a voltage as low as 1.5V.

IC A integrated Circuit. IC’s can be configured a multivibrator that can flash different types of light. The IC is identical as having transistors in one package.

7 Segment Display A type of electrical device that displays numerical symbols. The 7 segment display is an alternative to the very complex dot-matrix. 7 segment displays are used in digital clocks and any device that displays numbers to convey information.

Wire Wires are made from wire leads. These wires are called conductors because they have a function of conducting electricity. There are many types of good conductors like metal and copper. Material like plastic, skin, and paper are know as insulators because they don’t conduct electricity.

Resistor

Resistor The resistor’s job is to reduce the flow of electricity. The resistor has two terminals in which the electricity passes. Resistors are used to create and maintain a safe circuit with a component. To read a resistor, a code must be used. Look at the first color closest to the edge, if it’s brown go to the chart and see brown under 1st digit, you’ll get 1. Go to the next color. If it is green go to the chart and see green under 2nd digit, you’ll get 5. The next color is the multiplier. If it’s orange, go to the chart and see orange under multiplier, you’ll get 1,000. So multiply 15 by 1000 to get 15000 ohms. The last color is the tolerance. Tolerance is the amount of resistance. If it is gold, go to the chart and you’ll see gold is 5% , so multiply 15K X.05=Tolerance.

CDS Cell Known as Cadmium sulphide cell. The CDS cell is a type of exposure meter that is created based on photoconductive properties of cadmium sulphide. The resistance of the cds will drop as more light falls upon it.

Potentiometer

Potentiometer A type of resistor that is manually adjusted. In a Potentiometer, one terminal is connected to the power source while the other is hooked to a point of no resistance or voltage. The third terminal runs through resistive material, which serves as a connection point between the ground and power source. The purpose of controlling the resistance is to decide how much current will flow through the circuit.

Bread Board Breadboards are used to create many types of temporary circuits. The breadboard contains a lot of columns and holes where you insert the lead endings. The 5 columns of the sockets are all connected. For resistors,LED’s, diodes and transistors……, make sure you insert the right polarity.

SCR

SRC Known as silicon controlled rectifiers which are useful for controlling current. SCR’s work like diodes and are components in electrical switches. It’s used to allow the current to flow for a short time even after you let go the switch.

Relay Switch A relay switch is a type of electrical switch. Electrical current flowing through the coil creates a magnetic field which attracts the lever which results in a change in the switch contacts. Relay switches are double throw switches.

Thermal Switch Known as a thermal cutoff which is an electrical safety device that has a function of interrupting electrical current when heated to a specific temperature.

Push Button Switch A type of switch that is used to close or a electrical circuit. Push bottoms come with a button enclosed in a housing.

Diode the diode was an important development in electronics. At it’s discovery, it was known as the “Edison Effect”. The diode changes AC current into DC current. The diode will start conducting electricity when it’s junction voltage is exceeded. Smaller diodes are used to transform AC to DC current. Larger diodes are used to rectify larger AC currents.

Motor A DC motor is a direct current motor that is an electric motor that uses amounts of electricity and a magnetic field to produce torque, which in turn will turn the motor. The DC motor requires two magnets of opposite polarity which acts as a electro magnet. DC motor