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  • Simplest dor-bell based on AVR microcontroller

    2015-01-08 11:07:44104

    This circuit is so simple and generated sound may look ugly, but from other hand this is good starting point for newbies with AVR projects. This circui...

  • Simple Battery State Indicator

    2015-01-08 11:06:41189

    Many a time the outdoor audio or video recording becomes imperfect due to a ‘dying’ battery. If the battery voltage is less than 9V for a 12V recor...

  • Simple sawtooth generator operates at high frequency

    2015-01-08 11:02:1186

    Luca Bruno, Italy Pulse-width-modulation signal-generator circuits often use an analog sawtooth-oscillator function, but it also can be useful in other...

  • Simple mixer circuit

    2015-01-08 10:44:3173

    The simple mixer schematic is built on common base principle, where input voltages are transformed in alternative currents wich are summed to form the ...

  • Simple Powerful Siren Circuit Schematic Diagram (BC557)

    2015-01-08 10:34:38131

    This circuit operates with 12V DC, with purpose to obtain more power than the siren circuit already and to avoid the use of ICs. With a simple and usua...

  • Simple Touch Switch One Shot by 4011

    2015-01-08 10:30:38416

    Here is a simple touch control switch, I use IC 4011.Logic HI at output is timer pulse delay control by C1 1S = C1 4.7uF(micro farad),After touching th...

  • Simple UHF oscillator

    2015-01-08 10:28:13151

    This oscillator is typical for 350 to 500 operation. The microstrip inductor is a PC board trace. The output power is 55 to 100 mW into 50, with the fr...

  • Simple electronics projects and circuits

    2015-01-08 10:25:18108

    Simple Electronics Projects for Beginners This article is a collection ofsimple electronics circuitswe have published over a span of 3 years, which can...

  • Simple Op Amp Audio Amplifier

    2015-01-08 10:23:24161

    A CA3140 drives a complementary output stage Ql, Q2, and Q3. Output power depends on supply voltage and limit s on dissipations of Q2 and Q3, but it ca...

  • Simple Lamp Dimmer/ Fan Regulator

    2015-01-08 10:21:17121

    A Lamp Dimmer/Fan Regulator Circuit We have modified this circuit: Take a look Modified Lamp Dimmer Description . This is the circuit diagram of the si...

  • A simple mini alarm circuit

    2015-01-08 10:12:42123

    This article describes a simple mini alarm circuit. The circuit is very simple, very helpful. If you understand this principle is not very thorough, it...

  • How to build Two Simple Relay Based Motorcycle Alarms

    2015-01-08 10:12:2181

    Description These are two - easy to build - relay-based alarms. You can use them to protect your motorcycle - but they have many more applications. If ...

  • Simple AC to DC converter 9VAC to 35VDC

    2015-01-08 09:51:0796

    Simple AC to DC converter 9VAC to 35VDC This again idea example ac to dc converter model to be simple. By modify 9VAC to 35VDC from when how many is se...

  • Simple Metronome using transistor (ED140)

    2015-01-08 09:44:59175

    This article describes the Simple Metronome using transistor (ED140). The content is very simple, very helpful. Components in this article can help you...

  • Simple Differential input adapter Using CA3140

    2015-01-08 09:36:2585

    In some cases, we often encountered a differential input voltage required for measurement. Using only one operational amplifier, you can build an adapt...

  • Simple XTal Tester Circuit Schematic Diagram (1N4148)

    2015-01-08 09:27:28104

    This article describes the Simple XTal Tester Circuit Schematic Diagram (1N4148). The content is very simple, very helpful. Components in this article ...

  • Simple Utility Mixer

    2015-01-08 09:11:4578

    Here`s an interesting mixer circuit. With it you can effectively combine signals from audio to high-fre-quency RF. Als o, as a special bonus, this circ...

  • Simple Buzzer Using Only Passive Components

    2015-01-08 09:09:16120

    This circuit is a simple buzzer circuit and it called novel buzzer. It only uses a relay in series with a small audio transformer and speaker. The rela...

  • Very Simple VGA schematic

    2015-01-08 08:59:3681

    A simple VGA interface can be built on a breadboard with some resistors and a connector. The red, green and blue VGA signals are each driven by a simpl...

  • Simple pre mic dynamic and Electrec condenser micro phone

    2015-01-08 08:57:0480

    This be simple pre mic circuit, that can can enlarge both of dynamic micro phone and , Electrec condenser micro phone. Then convenient for usable with ...

  • Simple High Impedance DC Voltmeter Using a uA741 Op-amp

    2015-01-08 08:43:40327

    Circuit diagram of this simple in design for high voltage DC Impedance. This is a circuit diagram with circuit design that was built by uA741 IC. IC is...

  • Very Simple Touch Switch Using 4050 CMOS Buffer

    2015-01-08 08:32:4676

    Many efforts has been made to make simpler circuit, and here is one result, a very simple touch switch. You can build up to 6 similar circuit using onl...

  • The Simple Music Light Show Will Light Up Our Life!

    2015-01-08 08:31:3580

    Did you think youre a fanatic music lover, and you will take whatever, as long as you can build a music-based project? In this case, you must have a cl...

  • 5V Switching Regulator, Very Simple Circuit

    2015-01-08 08:30:5473

    Switching Regulator for High Power Efficiency When you should regulate a high voltage to a much lower voltage, switching regulator must be the only cho...

  • A Very Simple LED Tester(TL081)

    2015-01-08 08:13:06306

    This article describes the A Very Simple LED Tester (TL081). The principle is very simple, very practical. The circuit components can help you understa...

  • Simple and Useful LED circuits

    2015-01-08 08:05:25114

    Due to the advantages like low voltages, long life, cheap, reliable, fast on-off switching etc, the LEDs are used in many applications. The various app...

  • Ultra-simple Voltage Probe Circuit

    2015-01-08 08:03:3872

    Ultra-simple Voltage Probe Circuit Detects 1.8 to 220 Volts DC or AC Minimum parts counting Circuit diagram Parts: D1 5 or 3mm. Red LED D2 5 or 3mm. Gr...

  • Simple Low Frequency Oscillator Circuit

    2015-01-08 07:50:0778

    Here islow frequency oscillatorcircuit. The low frequency oscillator circuit for testing tone controls and experimenting. The timing components, R1, R2...

  • Simple A/D converter circuit with 2504

    2015-01-08 07:25:0377

    Time IO-bit conversion is 3.3 MHz with a p 3. Clock. This converter uses an approximation 2504 12-bit register in successive operating mode where the s...

  • Simple nonlinear low pass filter (1N4148)

    2015-01-08 07:19:0774

    This article describes the Simple nonlinear low pass filter (1N4148). The principle is very simple, very practical. The circuit components can help you...

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