2015-12-27 09:15
My son want to make a simple DC voltmeter on 0-10V range by Convert a galvanometer to voltmeter.Galvanometer DC1mA is cheap and easy with one resistor only.
The post Convert a galvanometer t… Read More
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Electronic Projects Circuits Blog
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variable
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temperature fire
digital volume control
convert
fluorescent lamp
press switch
mosfet amplifier
voltmeter
transmitter
Collection of electronics projects and simple electronic circuits as science projects, easy make with PCB, for beginners, hobbyist and student.
2015-12-21 13:55
This is a cheap air compressor time delay circuit. We especially design Air conditioning or refrigerators
The post Cheap air compressor time delay circuit appeared first on Electronic projec… Read More
2015-12-01 03:26
This is digital volume control circuit that Can be applied to the normal volume of a power amplifier. When press switch S1 adds up the volume and press switch S2 to reduce the volume down. H… Read More
2015-11-27 05:07
This is high temperature fire alarm circuit, when the temperature rise exceeds the limit, it will sound the siren rang out. It is easy to use with transistor circuit to detects heat. Then, a… Read More
2015-11-19 06:41
This is 4W 12V fluorescent lamp driver circuit using IC555 as main parts and for 12 volts battery at consumption current 300 mA, maybe used to 12V Adapter
The post 4W 12V Fluorescent lamp… Read More
2015-11-15 16:16
This is FM transmitter circuit without Coil,using inverter digital IC as main and controlled frequency is precise by crystal. Figure 1 the circuit diagram In Figure 1 is RF oscillator circui… Read More
2015-05-19 15:42
This is Outdoor solar lights circuits made by my son, at day solar charge to battery then night LED light up without AC line, Relay control the solar current
The post Outdoor solar lights c… Read More
2014-08-13 07:35
This is high power Mosfet amplifier,300W - 1200watt at load 4-8 ohms , For use in applications such as concert, theater, festivals, most suitable.
The post 300W – 1200W MOSFET Amplifi… Read More
2014-03-22 13:00
This is First Variable DC Power Supply 1.2V to 30V 1A using LM317. using a few parts and build easy with PCB layout and can fine adjust voltage output.
The post My first variable power suppl… Read More
2014-03-22 13:00
This is First Variable DC Power Supply 1.2V to 30V 1A using LM317. using a few parts and build easy with PCB layout and can fine adjust voltage output.
The post Variable power supply using L… Read More
2013-08-05 15:50
See Many simple electronic circuit that is very important on this sites. My friends used to say the large projects, from small several circuits to combinations.
The post Simple electronic c… Read More
2012-09-12 07:09
This 100W amplifier circuit by transistors, but very well OCL amplifier schematic.Use transistor MJ15003,MJ15004 as main. Power supply +38V 0 -38V 3A.
The post 100w amplifier circuit with… Read More
2006-06-07 11:16
This is the high quality power supply to provide high current 3A. And still adjust voltage in steps from 3V, 6V, 9V, 12V. adjust voltage is continuous 1.25V to 20V. Using LM317T and 2N3055 a… Read More
2006-06-07 11:16
This is a 3A adjustable regulators using IC-LM350T that look like In My first Variable DC Power Supply, but this high current higher than 3-Amp. Therefore they cause you can supply more any… Read More
2006-06-07 11:16
My daughter is about 1 year old, normal to wake request milk. Several times a night. So to turn on lighting up the night. Causing inconvenience And uneconomical. We are thinking to buy a bab… Read More
2006-06-07 11:16
Today I need to use AC lamp and Soldering iron at outdoor which no 220V AC electrical current. My friend borrow the 150 watt inverter of me, which I used it in car. It does works so well. So… Read More
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