Free Electronic Circuits,Schematic Diagram,Circuit Diagrams

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Free Electronic Circuits,Schematic Diagram,Circuit Diagrams

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Electronic Circuit,Schematic Diagram,Circuit Diagrams

External links - Jqueryelectronic circuit, circuit diagram, circuit schematic, schematic diagram, electronic diagram, audio, amplifier, power supply, guitar effect, current loop, current limiter, video, receiver, transmitter, transceiver, transistor, radio frequency, rf, active filters, digital, analog circuit, pwm, micro controller Free download

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Thursday, August 28, 2014

Simple circuit to listen to aircrafts


First of all I must say that we give this circuit with the educational purpose If you missed used this circuit we don't get the responsibility of it.Most of the viewers sent us emails asking RF circuits like this.Here we have used common transistor 2N918.To make L1 wind 2 turns of 22 AWG magnetic wire on a 5/32 steel bolt






 #  This circuit Can be operated with 9V
 #  Build this circuit on a PCB

Tuesday, August 19, 2014

CD 40017 Data


CD 4017 is a very famous IC .in 1980s Through knight rider teledrama most of people wanted to make the knight rider circuit diagram.Not only that by using this data sheet you can create new circuit diagrams.I suppose this will be a useful sourse for the guys who asked the data sheet of CD 4017



Monday, August 18, 2014

Simple Music Generator


This is a simple and enjoyable circuit diagram.Already free circuit diagrams 4U has given you many music bells.to build up this circuit we have used only on IC it is LM386 and you can run this circuit with 5V



Note:
         Build this circuit on a pcb
         Use 8Ohm speaker for this

Saturday, August 16, 2014

Simple LED Flasher Circuit Diagram Circuit ( With one transistor)

Today we are going to give you a very famous circuit diagram.Here we have used common Transistor BC 547.This circuit can be operated with 6V power supply So that this is a very famous circuit diagram among motor cycle owners.




Note : #  Build this circuit on a pcb
          #  Don't supply over 6V

Thursday, August 14, 2014

Simple Electric Shock Gun

This is a simple electric shock gun.You all know free circuit diagrams 4U always try to give useful and funny circuit diagrams .This circuit is not too powerful one so you can get fun with it.Here we have used audio transformer.This circuit can be operated with 3V







Note:
      #   Don't play with this with small children.
      # Though this circuit is harmless free circuit diagrams 4u doesn't take any responsibility of misusing this  
          circuit.We have given this with educational purpose only

Simple Water Sensitive Circuit Diagram



This is a very useful and simple circuit diagram we can use this circuit for different uses.this circuit is sensitive for water so when the touch pads touch water it will light up the LED.Removing the LED you can use a relay



   Note: 
            Build this circuit on a pcp

simple motor speed controller circuit diagram

This is a simple motor control circuit diagram.This circuit can be operated with 12v.So you can fix this circuit to your car or truck to control motors or fans.We must say that already free circuit diagrams 4u has given you motor speed controlling circuit diagrams




Note:  

            Build this circuit on a pcb

Wednesday, August 13, 2014

Touch Sensitive Circuit Diagram

This is  a touch sensitive circuit diagram.At present we can see vehicle manufactures have made touch sensitive electronic equipments with their cars.So I suppose this will be a useful circuit for you all guys.This circuit can be operated with 12 V so that you can fix this circuit with your car directly.Use a copper plate as the touch plate.





Note:
         # Build this circuit on a pcb

Simple UHF Tv transmitter circuit diagram



This is a very interesting circuit But this is illegal in some countries so first of all we must say that you have to test this with your own risk Free circuit diagrams 4U doesn't take any responsibility of this.Here We have used very common transistor BFR91A and also If you are unable to find above transistor you can use  BFR90, BFR92 or BFR93.The antenna should be 5cm.




Note: 
 # Build this circuit on a pcb 
 # Build this circuit in a small space

Monday, August 11, 2014

Simple LED Flasher for Kites


Today we are going to give you a LED Flasher Circuit Diagram For kites Because at present most of people like to send kites even at night time.We must say that already free circuit diagrams 4u has given you many LED circuit diagrams.You can build this circuit simply and fix it on your kite.This circuit can be operated with 3V.You can use button cell to power up this circuit.





 Note:
          # Build this circuit with out a pcb and  using a glue fix it to the kite

Thursday, August 7, 2014

Simple Crystal Radio Circuit Diagram

This is a very simple Crystal  Radio Circuit Diagram Circuit.Specialty of this circuit is you can build this circuit diagram by using things which are available at your home.This circuit runs with radio signal that means this circuit doesn't want an extra power.Before using your razor burn it.Then it will become blue color And also Connect the pencil's  rod of lead.It is not mentioned in the circuit diagram.Connect the ground wire to the earth line of your house.





Note:
         Build this circuit on a wood board

Monday, August 4, 2014

Simple Flasher Circuit Diagram






 Free Circuit Diagrams 4U has given you many flasher circuits.Today we are going to give you very easy circuit diagram this circuit is operated by NE 555By changing the value of the capacitor you can change the speed of LEDs.This circuit can be operated with 5V






Note: 
         # Supply 5V for this circuit 
         # Use a base to Ne555

Tuesday, July 29, 2014

LED Circuit



Free circuit diagrams 4U has given you many  LED circuits before.By using this circuit you can light up a LED with 9V.This is too simple circuit .So the kids also can try this circuit






Simple radio circuit Diagram

Already  Free Circuit Diagrams 4u has given you many radio circuit diagrams this is also a simple radio circuit.You don't want to supply extra power for this circuit this circuit is powered up with radio signals.The parts are mentioned bellow


 D1: 1N34 germanium diode
J1: 1/4-inch, 2-conductor headphone jack   
 C1: 1000 pF mica or disc ceramic trimmer
C2: 40 to 500 pF trimmer capacitor
C3: 365 pF variable capacitor
L1: 35 feet of 22-gauge enamel wire.






#  Note:    Try to test this circuit doing changes for the coil then you can get best result 

                 We would like to remind you that Free circuit diagrams 4u has  free, electronic circuit, circuit diagram, circuit schematic, schematic diagram, electronic diagram, audio, amplifier, power supply, guitar effect, current loop, current limiter, video, receiver, transmitter and many more circuit diagrams

Wednesday, July 23, 2014

One LED with 9V Power


Hi every one you all know Free circuit Diagrams 4U always give you easy and simple circuit diagrams so today we are going to give you a special circuit diagram.By using this circuit diagram you can light up a LED with 9V






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