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simple coir dust meter
Published on 2012-05-22 03:19:00
Last few days I did some experiment regarding coir dust meters. At that time I could made this simple circuit diagram.Here I have used common Transistor Bc 547. Really this is a water sensitive circuit.We can use this circuit to measure whether coir dust is wet or dry.How to operate:-First of all switch on your multimeter and switch it to measure the voltage next get the handle and pull it in to the sack of coir dust ( That means A and B must go in to the sack) then read the meter.Before statin [..] > read more
230V Led Flasher circuit diagram
Published on 2012-04-23 23:47:00
This is a 230V LED flasher circuit diagram.I thought to give you this circuit because of the on coming Wesak festival.By using this circuit you can flash your LED with 230V.If you want to add more LEDs you can simply add a relay and connect the rest of LEDs via it.I suppose adding a relay is the most easiest way for beginners.# Note1) Build this circuit on a pcb2) Always use the correct values of electronic items.3) THIS CIRCUIT IS NOT SUITABLE FOR CHILDREN IF YOU ARE A CHILD DON'T TEST THIS [..] > read more
Car Reverse Horn
Published on 2012-03-07 22:55:00
Most of people have there own vehicles.so I suppose this circuit will be very useful circuit for them.This circuit is a car reverse horn.If you can build your own circuit for your car I think that is great.Here I have used common Music generator IC UM 66.The out put voltage of UM66 is not enough to make a good car reverse horn so by using two transistors (BC148 and BEL187)I have increased it.Note# This circuit operates with 12V power supply# Build this circuit on a PCB to get good results# us [..] > read more
TV Transmitter circuit diagram (VHF)
Published on 2012-01-22 01:29:00
Most of people ask TV transmitters.So Today I'm going to give you a very useful circuit diagram.By using this circuit you can send your signals 75m to 100m.This circuit diagram is not my own circuit one of my friends gave me this.I suppose you guys also can send your own circuit diagrams for us.Then we can publish them through our website.Here They have used common transistor BC 108 If you are unable to find this transistor you can use equal transistors like BC337, 2N2222, BC546.Note# To make L [..] > read more
Burglar alarm
Published on 2012-01-02 11:25:00
This is a very useful circuit diagram because these days there are lots of crimes in every where.So I suppose this would be an answer for your matter.Here I have used common Transistor BC107.After fixing this circuit switch on s1 and adjust R2 until the horn makes sound.Then switch off the s1 .Now if some one broke the thin wire the horn will make a sound.You can cover your garden with this circuitNote# Build this circuit on a PCB#Don't supply more than 12V# Use very thin wire to get good resul [..] > read more
Basic Sound Generator Circuit Diagram
Published on 2011-10-18 00:17:00
This is so important circuit for the persons who came to this field recently.Here I have used common IC NE555.According to the pules (Frequency) of the IC We can generate the sound.You can change the speed of the sound by adjusting R2.This circuit operates with 5V.# Note# Don't give over 5V# Build this circuit on a PCB# Don't give the much heat to the IC NE555 > read more
Three sirens in one Circuit
Published on 2011-09-29 23:58:00
This is a siren circuit diagram Here I have used UM3561 circuit diagram.This circuit can be operated with 3V.It can generate 3 sirens.Here I have used IC 2SC9013 you can use the same IC or similar IC. Use 8ohm 0.2W speaker.Note:-* Don't use more than 3V* Don't use this for unnecessary things* Build this circuit on a PCB > read more
230V LED
Published on 2011-07-25 23:58:00
Most of you asked about 230V LED circuit diagrams.Today I'm going to introduce you that circuit.I have attached this circuit for my door bell.So that at night I can easily see it.Not only that people can us this circuit to see whether electricity is there or not So use thi9s circuit and get fun....# Note# you should be careful when you use this circuit.Because this circuit operates with 230V# This circuit is not suitable for kids# When you use electronic parts those parts should have correct val [..] > read more
Simple radio circit diagram
Published on 2011-05-14 00:36:00
some persons asked simple radio circuit diagrams.Here you can see very simple circuit diagram.When I tested this my first time I enjoyed very much.When the signals are coming you can here some sounds like ne ne nee nic nee nee nee nee.so test this an > read more
Simple radio circit diagram
Published on 2011-05-14 00:36:00
some persons asked simple radio circuit diagrams.Here you can see very simple circuit diagram.When I tested this my first time I enjoyed very much.When the signals are coming you can here some sounds like ne ne nee nic nee nee nee nee.so test this an > read more
Simple Toy Orgen
Published on 2011-04-14 03:36:00
This is a toy orgen circuit diagram here I have used very common IC NE555.If you like to generate different sounds you can attach capacitors with different values.according to the value of the capacitor you can change the sound according to your wish > read more
Simple Toy Orgen
Published on 2011-04-14 03:36:00
This is a toy orgen circuit diagram here I have used very common IC NE555.If you like to generate different sounds you can attach capacitors with different values.according to the value of the capacitor you can change the sound according to your wish > read more
Smoke sensitive circuit diagram
Published on 2011-04-02 00:22:00
Here I am going to introduce you a very important circuit.It is nothing but a smoke sensitive circuit .In the market we can see there are lots of expensive smoke sensitive kits.But I'm going to give you a very simple method to make a smoke detector.H > read more
Smoke sensitive circuit diagram
Published on 2011-04-02 00:22:00
Here I am going to introduce you a very important circuit.It is nothing but a smoke sensitive circuit .In the market we can see there are lots of expensive smoke sensitive kits.But I'm going to give you a very simple method to make a smoke detector.H > read more
Water sensitive circuit diagram
Published on 2011-02-23 23:12:00
This is a water sensitive circuit diagram.I suppose this circuit will give you lots of benefits .I have modified this circuit up to some extent and have added to our water pump moter (230 v) I think you also can use this circuit for various purposes. > read more
Water sensitive circuit diagram
Published on 2011-02-23 23:12:00
This is a water sensitive circuit diagram.I suppose this circuit will give you lots of benefits .I have modified this circuit up to some extent and have added to our water pump moter (230 v) I think you also can use this circuit for various purposes. > read more
Touch sensitive circuit diagram
Published on 2011-02-17 08:30:00
Here I have design a touch sensitive circuit diagram.For this circuit I have used a common transistor BC 547.Normally this circuit can be operated with 4.5 to 6 v.I suppose you will be able to do lots of things with this.I have used this circuit for > read more
Touch sensitive circuit diagram
Published on 2011-02-17 08:30:00
Here I have design a touch sensitive circuit diagram.For this circuit I have used a common transistor BC 547.Normally this circuit can be operated with 4.5 to 6 v.I suppose you will be able to do lots of things with this.I have used this circuit for > read more
Simple Flaher Circuit Diagram (24V)
Published on 2010-12-27 23:32:00
This is a simple flasher circuit diagram.Some people can't use normal circuit diagrams due to 24V batteries of there Vehicles.Here I Have introduced 24V circuit diagram for you all.Here I have used simple circuit diagram.It is multivibrator circuit > read more
Simple Flaher Circuit Diagram (24V)
Published on 2010-12-27 23:32:00
This is a simple flasher circuit diagram.Some people can't use normal circuit diagrams due to 24V batteries of there Vehicles.Here I Have introduced 24V circuit diagram for you all.Here I have used simple circuit diagram.It is multivibrator circuit > read more
Blinking LED Circuit Diagram
Published on 2010-12-26 10:32:00
This is a blinking LED circuit diagram.Here I have used common IC NE555.If you want to change the speed of this circuit you can change the value of R2.Then you can do that.Note* Use a PCB to build this circuit* You can operate this circuit with 9V > read more
Blinking LED Circuit Diagram
Published on 2010-12-26 10:32:00
This is a blinking LED circuit diagram.Here I have used common IC NE555.If you want to change the speed of this circuit you can change the value of R2.Then you can do that.Note* Use a PCB to build this circuit* You can operate this circuit with 9V > read more
Simple Christmas star from multivibrator Circuit Diagram
Published on 2010-12-01 09:04:00
This is so simple circuit But you can use this circuit as a Christmas star.Here I have used famous transistor 2N3904.If you are unable to find this transistor you can use D400 instead of that.This circuit operates with 9V.I used this circuit for the > read more
Simple Christmas star from multivibrator Circuit Diagram
Published on 2010-12-01 09:04:00
This is so simple circuit But you can use this circuit as a Christmas star.Here I have used famous transistor 2N3904.If you are unable to find this transistor you can use D400 instead of that.This circuit operates with 9V.I used this circuit for the > read more
Flashing Neon Circuit diagram
Published on 2010-11-07 10:45:00
This circuit will be a fantastic circuit for Vehicle lovers Because this circuit can up grade the out look of your Vehicle. This circuit is nothing but a Flashing Neon circuit diagram.This circuit can be operated with 90V.You can change the frequency > read more
Flashing Neon Circuit diagram
Published on 2010-11-07 10:45:00
This circuit will be a fantastic circuit for Vehicle lovers Because this circuit can up grade the out look of your Vehicle. This circuit is nothing but a Flashing Neon circuit diagram.This circuit can be operated with 90V.You can change the frequency > read more
12V to 120V Inverter circuit diagram
Published on 2010-10-24 03:05:00
Most of members asked about 12V to 120 inverter circuit diagram.As they mentioned they need to operate 120V applicants with 12V car battery.So this circuit will be the answer for that.Note# T1 should be 15A# parts that we have mentioned here can only > read more
12V to 120V Inverter circuit diagram
Published on 2010-10-24 03:05:00
Most of members asked about 12V to 120 inverter circuit diagram.As they mentioned they need to operate 120V applicants with 12V car battery.So this circuit will be the answer for that.Note# T1 should be 15A# parts that we have mentioned here can only > read more
Light Operated Rellay Circuit diagram
Published on 2010-10-03 23:11:00
This is light operated circuit diagram.Wonderful thing is this circuit can be operated with 9V power supply.You can attach this circuit for your vehicle even.I have used this circuit for my car as an automatic dim switch.This circuit operates with BC > read more
Light Operated Rellay Circuit diagram
Published on 2010-10-03 23:11:00
This is light operated circuit diagram.Wonderful thing is this circuit can be operated with 9V power supply.You can attach this circuit for your vehicle even.I have used this circuit for my car as an automatic dim switch.This circuit operates with BC > read more
Fluorescent Tube Light Driver Circuit Diagram(10W)
Published on 2010-10-03 02:28:00
This is very useful circuit for us.Because we can light up 10W Fluorescent lamp by using this circuit diagram.This circuit operates with single transformer.I suppose now you can enjoy this inverter.When you wind the transformer do it carefully becaus > read more
Fluorescent Tube Light Driver Circuit Diagram(10W)
Published on 2010-10-03 02:28:00
This is very useful circuit for us.Because we can light up 10W Fluorescent lamp by using this circuit diagram.This circuit operates with single transformer.I suppose now you can enjoy this inverter.When you wind the transformer do it carefully becaus > read more
LED FLASHER ( About 1Year )
Published on 2010-08-31 02:19:00
This is so useful circuit diagram for you Because this circuit can light up an LED about 1 year with 9V battery.Here I have used famous IC HEF 4093.Note# Use a white colour LED# Build this on a PCB to get maximum result# Use 9V battery to power this > read more
LED FLASHER ( About 1Year )
Published on 2010-08-31 02:19:00
This is so useful circuit diagram for you Because this circuit can light up an LED about 1 year with 9V battery.Here I have used famous IC HEF 4093.Note# Use a white colour LED# Build this on a PCB to get maximum result# Use 9V battery to power this > read more
9V (2A) power supply circuit diagram
Published on 2010-08-20 01:10:00
Lots of members asked about 9V dc power supply with 2A.So here We have introduce a new circuit diagram.This circuit can provide 9V 2A.I suppose now you all have some what good power supply with some what good amp level.This circuit operates with fa > read more
9V (2A) power supply circuit diagram
Published on 2010-08-20 01:10:00
Lots of members asked about 9V dc power supply with 2A.So here We have introduce a new circuit diagram.This circuit can provide 9V 2A.I suppose now you all have some what good power supply with some what good amp level.This circuit operates with fa > read more
Ding Dong Bell circuit diagram
Published on 2010-08-05 04:09:00
This is a ding dong bell circuit diagram.I have attached this circuit for my house.Even you can use this circuit as an sound generator.When we buy this circuit from the market we have to spend much money but now you can build this your self.Here I ha > read more
Ding Dong Bell circuit diagram
Published on 2010-08-05 04:09:00
This is a ding dong bell circuit diagram.I have attached this circuit for my house.Even you can use this circuit as an sound generator.When we buy this circuit from the market we have to spend much money but now you can build this your self.Here I ha > read more