Complete Video Guide For Making This Circuit
For HD Clear View Download the Video
Components Required:
- Variable Resistors
- Resistors
- Battrey
- Polarized capacitors
- IC A741
- Inductor
For HD Clear View Download the Video
Components Required:
How This Circuit Works:
The main part of this circuit is Inductor and operational amplifier A741. The sensing element which is used in this circuit is inductor of 100mH. When this inductor comes near by electromagnetic things like telephone line ,a voltage will be induced in the line which is further amplified by the op-amp.We can hear the signal from head phone.In this way we can hear the talk on a telephone line by taking this circuit near to a telephone line.A variable resistor at pin 6 of the op-amp can be used to adjust the gain of the op-amp.This circuit can also be used to find the wiring underground.
Diagram of the Circuit Taken From Net to Simulate on Proteus:
Steps To Make the Circuit On Proteus:
Open Proteus professional.exe and pick components from pick devices.
Place all the components on the screen as shown in upper picture and give them Specify values according to the picture.
Connect one component with the other as per diagram.Click on one edge
Of the first component and then click on the others edge , a wire will connect Both.
Diagnose each component value and connection.
Play the circuit if circuit works then congrats J otherwise repeat step 4.
Take a print out of the circuit for your presentation
The main part of this circuit is Inductor and operational amplifier A741. The sensing element which is used in this circuit is inductor of 100mH. When this inductor comes near by electromagnetic things like telephone line ,a voltage will be induced in the line which is further amplified by the op-amp.We can hear the signal from head phone.In this way we can hear the talk on a telephone line by taking this circuit near to a telephone line.A variable resistor at pin 6 of the op-amp can be used to adjust the gain of the op-amp.This circuit can also be used to find the wiring underground.
Steps To Make the Circuit On Proteus:
Open Proteus professional.exe and pick components from pick devices.
Place all the components on the screen as shown in upper picture and give them Specify values according to the picture.
Connect one component with the other as per diagram.Click on one edge
Of the first component and then click on the others edge , a wire will connect Both.
Diagnose each component value and connection.
Play the circuit if circuit works then congrats J otherwise repeat step 4.
Take a print out of the circuit for your presentation
Diagram of My Circuit Simulated On Proteus:
My Proteus simulated Project File:
====>Click Here For Project File
Password: crazyproteus
Note : Proteus professional software is required for this circuit to open
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