2019-02-26 06:33
Hi every one today I'm going to give you 230 V light sensitive circuit diagram.When it is getting dark light switches on automatically.If you are under 18 years old Don't try this circuit di… Read More
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2019-02-24 18:14
Hi friends Here is a very Simple LED flasher circuit diagram.Here we have used common transistor 2N3904 transistor.This circuit can be operated with 6V power supply.I have attached this circ… Read More
2019-02-24 18:14
Hi friends today I'm going to give you a simple buzzer circuit diagram.This circuit operates with IC NE 555 .And also this circuit can be operated with 5V to 15V. By changing the variable re… Read More
2019-02-17 19:04
Hi every one today I'm going to give you a simple 150 Mhz dipole antenna.If I say simply this is a VHF antenna .Each dipole should be 49cm .always use hi quality co-ax cable.Try this and see… Read More
2019-02-13 19:43
Hi all today I'm going to give you a Tv transmitter circuit diagram..Actually Tv transmitters are ban in some countries. So If build this build it with your own risk.Here we have used… Read More
2019-02-12 04:08
Today I'm going to give you 9V LED circuit diagram.I have fix this circuit diagram for my foot bicycle.When you build this build this circuit on a PCB.And also use connectors when you attach… Read More
2019-02-11 18:49
Have a good day every one!.Today I'm going to give you a very useful circuit diagram.we can use this circuit for various purposes.This circuit runs with 220V so if you are a guy below 18 do'… Read More
2019-02-10 19:09
Here I'm going to give you a circuit diagram which is sensitive to sound.According to the sound this will blink its LEDs..Here we have used Tip31 transistor to light up the leds.But that pow… Read More
2019-02-10 17:42
Today I'm going to give you a simple bug circuit diagram.By using this circuit you can send your FM signals up to 30-50 M. Here the coil is tapped at the 6th loop.We have used common transis… Read More
2019-02-10 17:40
Hi every one May you have a good day.Most of members asked about 120V LED Lamp circuit Diagram.You all know Free circuit Diagrams 4U is a web site which is giving wide range of electronic ci… Read More
2019-02-08 18:28
Today I'm going to give you a FM transmitter circuit.The most impotent thing of this circuit is we can operate this circuit with 1.5V power supply.L1 should be 5 turns of 0.7mm ena… Read More
2019-02-06 18:34
Hi We all like to make music circuits .So today I'm going to give you a very useful circuit diagram.Actually this circuit operates with common Ic called UM66.And another important thing is t… Read More
2019-02-05 08:11
Hi guys today I'm going to give you 24V to 12V converter circuit diagram.Most of the heavy vehicle drivers asked me about this.Here we have used IC LM 338.With out connecting a heat sink don… Read More
2019-02-05 04:31
Hi every one most of you guys asked me about some circuit diagrams which are related to transmitters So today I'm going to give you a very simple but powerful circuit diagram.This circuit ca… Read More
2019-02-04 05:35
Today I'm going to give you a very impotent circuit for vehicle owners .Because most of you asked me about 12V Led circuit diagrams .So here is the circuit diagram.This is very simple and yo… Read More
2019-02-04 04:55
Hi every one today i'm going to give you a very useful circuit diagram .At present we can see a lot of scientist talk about wireless power transmission.Here I'm going to give you a basic kno… Read More
2019-02-03 16:05
This is very useful circuit diagram because we all love to make different types of sound generators .Today I'm going to introduce you a machine gun sound generator circuit diagram.Free Circu… Read More
2018-12-26 08:15
Hi every one due to my exams I was so busy with my studies. Now they are ok so I'm ready to update my site again.So you all can get my new updates daily. Thank you very much for dealing with… Read More
2015-09-15 19:07
Hi Every one .Electronic lovers love LED circuit diagrams because they are very beautiful.So today I'm going to give you a blinking LED circuit Diagram.Already Free circuit diagrams 4U has g… Read More
2015-09-04 07:11
Today We are going to give you a solar circuit diagram.Because most of the people don't know how to connect the solar panel with the batteries and bulbs so this circuit diagram shows you how… Read More
2015-06-24 04:39
Hi every one this is 230V LED bulb circuit diagram.At the moment 230V LED bulbs have become very popular due to its low power consumption and due to it's clear light.I suppose th… Read More
2015-06-23 19:02
Hi friends today I have brought you some thing special.Actually this would be a very interesting topic for our vehicle lovers.Today Free Circuit Diagrams 4U is going to give you a 12V batter… Read More
2015-06-19 07:19
Hi every one today there is a special circuit for you .It is nothing but an inverter circuit diagram.If you supplied 12v you can get 230V as the out put current.IRFZ44t loads up to 200… Read More
2015-06-17 04:16
Hi guys today We hope to give you a very simple fade circuit diagram.First of all I must say that this is a circuit for beginners.When we switch off the circuit it will take some time to swi… Read More
2015-06-17 03:48
As electronic lovers we all have to face many troubles when we check some circuits.Among them soldering matters act a major part.Sometimes we can't see those faults with our eye.Some times u… Read More
2015-06-16 04:59
Hi every one today We are going to give you a very simple night lamp circuit diagram before this time also FREE CIRCUIT DIAGRAMS 4U has given you night lamp circuits.Here we have introduced… Read More
2015-06-14 06:14
Already Free Circuit Diagrams 4U has given you Knight rider circuit diagrams.But most of guys asked 230V knight rider circuit.I must say that you can convert common Circuit diagram in to 110… Read More
2015-06-14 05:36
I suppose all the vehicle lowers will love this circuit Because at present when we do a modification for a vehicle Amplifier also acts a major role.Today we are going to give you5.8W P… Read More
2015-06-14 05:08
Hi everyone today we have decided to give you a touch lamp circuit diagram.This circuit is operated with 12 V power.And here we have used 2N2905 ,2N3906 and 2N3055 transistors.Personally I t… Read More
2015-06-10 07:06
At present we can see the temperature of this planet is increasing day by day so that the people use various types of things to overcome that matter some rich countries use air conditioners… Read More
2015-06-09 18:59
Hi every one Today I'm going to give you LED Chaser circuit diagram.By using this circuit you can light up 6 LEDs. up to now FREE CIRCUIT DIAGRAMS 4U has given you various running circuits B… Read More
2015-06-08 19:03
Last few days most of guys asked me.Some data sheets of various radio components.I suppose some of you also may have the same question.There are many web sites which give free data she… Read More
2015-06-07 05:45
Today we are going to give you a simple AM transmitter circuit diagram.At the moment FREE CIRCUIT DIAGRAMS 4U has given you may transmitter circuit diagrams .Before every thing I must… Read More
2015-06-03 04:14
You all know normally Free circuit diagrams 4U gives wide range of circuit diagrams So today we are going to give you a sound generator circuit diagram this circuit can be operated wi… Read More
2015-06-02 19:27
Hi everyone today I'm going to give you a Vedio transmitter circuit diagram.As the transistor we have used transistor 2N2222 And I must say this.this circuit is not a tested one this c… Read More
2015-06-01 08:05
At present We can see most of people are used to listen music.Actually listening music is a very useful thing to vanish their stress.When we go to listen music amplifier is the thing which… Read More
2015-05-31 04:59
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 inst… Read More
2015-05-29 03:37
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 ci… Read More
2015-05-27 06:18
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 coilyou can… Read More
2015-05-26 04:30
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 ci… Read More
2015-05-12 17:54
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 c… Read More
2015-05-07 20:30
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 ma… Read More
2015-05-04 04:48
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 d… Read More
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