School project

DIY amplifier circuit diagram: DIY amplifier circuit diagram using tip41 and tip42. This board can produce 20 watts using 12 voltages of 2 amperes.  the transistor needs a separator with the heatsink. We can also use other transistors like c2073 and a940.  Type Designator: TIP41 The material of the Transistor …

DIY timer circuit board: This is a DIY timer circuit board. this diagram is so easy to make. it’s an important diagram in the electronics sector. sometimes we need the power to be switched on after some time. for this, we can use this diagram. here has a variable to …

How to make running light: This is a running light circuit diagram. it’s a simple diagram. this circuit runs with 5 voltages only. it has 5 LED lights. Ne555 is very widely used in many electronic projects, like using timers and also as well as LED control circuits. like this …

How to make a password: This is a circuit to make a password. this is the best easy security system. 6 digit. here used 6 changeable switches to make 6 separate numbers. sometimes we need easy security then we can use this system.  transistor circuit diagram of 2sa1943 and 2sc5200 …

Switch on-off using the password: This is a circuit to switch on or off using a password. this circuit is so simple to make. here use 4 rotary switches to make passwords. every switch has 10 outputs. every output can make a different number. we can set every output in …

How to make flip flop circuit: The flip-flop is a digital electronics circuit. This circuit with two stable states that can store digital binary data. This stored data can be changed by applying different inputs. This circuit has two inputs and two outputs. this circuit operates with a negative clock transition …

Timer circuit diagram: This is a timer circuit diagram. this circuit can control using this adjustable variable. we can make this circuit as we want. we can make the time as we want. we can adjust 0.5 seconds to 12 hours. this circuit’s input voltage is 12 and the output …

Voltage booster circuit: This is a Voltage booster circuit diagram. here use only one Ic Ne555. we will get double voltage but the amperes will be half. like if we use 6 voltage and 2 amperes then we will get 12 voltage and 1 amperes.  This circuit can use in …

Homemade battery: This is a homemade battery. this is the system for making a battery. here we can use soda or salt or Sulfuric acid. every glass will make 0.6 volts like that. we need one copper sheet and one aluminum sheet. copper will make the positive charge and aluminum …

how to make a rain alarm: This is a rain alarm project. this circuit makes an alarm when it gets water on its probe. This prob works in this circuit as a switch. when the probe gets water then it works as the switch and then the alarm makes a …