Set Number 1 "MK7501"

This set is prepared to introduce beginners to electric & electronic terms such as electronic voltage, electric current, power, ohm rule, and etc and familiarize them with the method of recognition, decoding installing and soldering and function of some parts such as resistor capacitor, self, trans, diode, zinner diode, transistor,... .The creation of potential difference and electric current creation are defined at the beginning of this chapter through describing the atom structure, specifications of metals, conductor and non-conductor materials, and etc. then we are going to learn how to decode the resistor's color codes and the related table and using suitable examples.

In the second chapter the way of installing components on PCB is provided, beginners can become familiar with the appearance of some components and proper soldering.

Its PCB has some junction points called connection pins, which prevent your PCB from numerous soldering. Beginners can use it later for other experiments and create connection between its parts by some pieces of wires and connecting them to the pins. For example you can see how and create connection between its parts by some pieces of wires and connecting them to the pins. For example you can see how an LED is connected to the power supply in the below diagram.

As you can see the pins of PIN1 set are connected to power supply positive pole and PIN3 pins to its negative pole. The LED will turn on when connect its bases properly to positive and negative poles of the power supply. During this experiment and later ones you will learn how to use a resistor to control LED current and how to prevent it from begin hurt and how to prevent it from begin hurt. Then we will become familiar with some kind of resistors such as potentiometer, thermal resistor and their functions practically.



In the third chapter you will be briefly familiarized with magnetic magnet and the differences between magnetic and electric forces and between DC and AC. This is a preface to introduce some components such as capacitor self that will be fully described later. Function of generators and the method of production of an alternating current are some interesting parts of this chapter. Some AC&DC signal diagrams are provided at the end of this chapter.

Fourth chapter familiarize you with capacitor inner-structure and its function in AC&DC circuits. You will learn something about capacitor capacity charge and discharge and how to calculate charge and discharge time and capacitor units of capacity.







Frequency and also the definition of cycle and capacitor capacity calculation formula against alternating current and voltage have been discussed in this chapter. At the end you will come to become acquainted with capacitor and its function in AC&DC circuits practically through some experiments.


In fifth part self measures and its function in AC and DC circuits and self resistance calculation formula have been discussed and some of its use in designing some practical circuits such as speaker recorder head and transformator are provided. The inner-structure of transformator and its various types is examined more carefully at the end of this chapter a summary of transformator's power, voltage and current calculation formulae are provided.

In sixth chapter you will come to know more about the molecule structure of semi-conductors and NandP components which are used in diodes zinner diodes and also transistors. And them in the first step you will experience how to use a diode as a one way direction through some experiments. Of course a diode plays various roles in electronic circuits but here we mainly discuss its function as a rectifier in adaptor circuit. You can see a full-wave adaptor circuit with a coupled/ double Trans in the next diagram. At the end of the theoretical part of this chapter you will find out how to calculate the zinner diode power and to use it as a voltage stabilizer.

The seventh chapter will teach you how to calculate the resistance of resistors that are connected to gather in series or parallel forms and a combination of both by giving some examples. And you will become familiar with the inner-structure of a bi-polar transistor and you will learn how to connect it to different power supplies.

At the end of this chapter a brief definition of IC and FET transistor are provided that is a sufficient and necessary preface to the set No. 2.

It is worth mentioning that those parts that are provided together with sets are chosen in a way that you can use them to run and repair some electric devices beside their uses for teaching, so it saves you the money you're paid for them. For example you can use the adaptor of No. 1 set for No. 2 set or use it to run some educational kits Mehran kit or every other appliance.