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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
9V Simple LED Lamp
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
LED Running Lights According To The Music
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
120V LED Lamp Circuit Diagram
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
Simple Music Circuit
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

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