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Today free circuit diagrams 4U is going to give you very useful circuit diagram.Because at present we can  see most of the people in the world try to use LED bulbs for their houses instead of common tungsten bulb.When you build this circuit always use correct values. Note: If you are a kid don't try this circuit Because 230V is dangerous

Most of the people requested touch sensitive circuit diagrams from FREE CIRCUIT DIAGRAMS 4U .So today we hope to give you a touch sensitive circuit diagram.Here we have used NE555 IC.This circuit can be operated with 6V power.Removing the led you can attach a relay for the circuit. Note:     # Build this circuit on a pcb                 # Don't supply over 6V

Today I'm going to give you a simple MW Transmitter.This transmitter can be operated with 9 v power supply.Here we have used common transistor BF494B.Here we have used MW antenna coil you can use the 8 ohm speaker to speak that means here the speaker does the work of the mic.To get the maximum result build this on a pcb and don't supply power without connecting the antenna.             Note:   Don't missuse this circuit            you can send signals up to 500M

You all know FREE CIRCUIT DIAGRAMS 4U always try to give simple and useful circuit diagrams.Today we are going to give you a Simple dark activated circuit diagram.When the dark comes this circuit will activated.This circuit is operated with 12v power.Most of time these types of circuits are used to design robot hands etc.And also you can make a counter of people.For that you can use a lazer pointer and aim it to the LDR.When a person is passing.Lazer beam will cut due to that the circuit will activate.you can use this circuit for various things so try this... Note:         # Build this circuit on a PCB          # Don't supply over 12V

Today FREE CIRCUIT DIAGRAMS 4U is going to give you a very simple flasher circuit diagram.It means after giving the power for the circuit the LED will start to blink.Here we have used very common Transistor 2N2222.This circuit is operated with 12V power supply so that The people who have cars and vans can use this circuit to decorate their vehicle. Note: build this circuit on a PCB Don't supply over 12V power

Today we are going to give you very interesting circuit diagram.Normally most of electronic lovers love to make transmitter circuit diagrams.Already FREE CIRCUIT DIAGRAMS 4U has given you many transmitters.The specialty of this circuit diagram is this is some what powerful.By using this transmitter you can send signals up to 5ooM.here we have used very famous transmitter 2N2219 .This circuit is operated by 12v power supply.Specially I would like to tell you If your country doesn't allow you to build transmitters don't try this.We have publish this with the educational purpose.If you misused this circuit FREE CIRCUIT DIAGRAMS 4U doesn't take any responsibility of that. Note: # Build this circuit on aPCB # Without connecting the antenna don't supply power for the circuit # By using some what long wire as the antenna you can send signals to long distance

Today we are going to give you a very simple circuit diagram.It is a music bell circuit diagram Already FREE CIRCUIT DIAGRAMS 4U has given you many musical bell diagrams so this circuit is design for 110V .Here If you changed the relay you can use this circuit with 230v not only that you can use this circuit with your motor bike or car.supply 110V to 110V relay and supply 3V to the um66 unit. Note :-              Build this circuit on a P.C.B              If you are a kid don't try this circuit diagram