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  • Simple Automatic Lead Acid Battery Charger

    2015-01-11 01:33:15178

    The Battery Charger Circuit This lead acid battery charger circuit design is very simple and smart.? I call it a smart battery charger design because i...

  • Simple Polarity Tester

    2015-01-11 01:24:36441

    This tester can be used to check the polarity of any power source, and is therefore very useful when installing automotive equipment, alarm systems or ...

  • Simple Wwv Converter For Auto Radios Circuit

    2015-01-11 01:23:2479

    This simple frequency converter mixes the 15-MHz WWV/WVH signal with a 16-MHz signal from the LO to convert it down to 1 MHz so that it can be heard on...

  • Simple AC wattmeter circuit (1N4148)

    2015-01-11 01:21:21134

    This article describes the Simple AC wattmeter circuit (1N4148). The content is very simple, very helpful. Components in this article can help you unde...

  • Simple Countdown Timer On using CD4510

    2015-01-11 01:19:16136

    Here is countdown Timer on circuit. this circuit The circuit can be powered from a 9V PP3 battery or 12V DC power supply. The time delay can be varied ...

  • Simple Sample and Hold with CD4066

    2015-01-11 00:54:52128

    A sample and hold is like an analog memory. If The digital control A is low 4066 switch is open, and when A is high switch is closed. U2B is a buffer s...

  • Simple Transmission Lines

    2015-01-11 00:53:2878

    Java-Runtime is required for Circuit Simulation. Download Java for Windows Download Java for Linux Download Java for Other OS Start Simulation Circuit ...

  • Simple Short-Wave Transmitter(BD677)

    2015-01-11 00:46:36109

    This article describes Simple Short-Wave Transmitter (BD677). The principle is very simple, very practical. The circuit components can help you underst...

  • Simple Metronome using transistor

    2015-01-11 00:27:2179

    This circuit be Simple Metronome circuit model to be simple. It use the transistor be important equipment by very the circuit is the character Astable ...

  • A simple circuit programmer for LPT ports Based on 74HC244

    2015-01-11 00:07:5399

    Its assembly will take not more than one hour, but guarantees the integrity of yourLPTport and work with Pony Prog 2000. IC74HC244- buffer. Resistor R1...

  • Simple Battery Charger Circuit Charges Upto 12 NiCD Cells

    2015-01-11 00:01:4273

    This handy circuit can be used to charge from one to 12 NiCd cells from a car battery. Up to six cells can be charged with switch S1 in the "normal" po...

  • Simple Serial AVR Programmer (ATmega161)

    2015-01-10 23:52:22131

    This simple AVR Programmer able to transfer hex programs to most ATMEL AVR microcontrollers. It is more reliable than most other simple AVR programmers...

  • Simple Analog Multiplier Circuit Using LM107

    2015-01-10 23:36:3583

    This circuit a simple analog multiplier, the circuit operation may be understood by considering A2 as a controlled gain amplifier, amplifying V2, whose...

  • Low-Cost and Simple Intercom circuit diagram

    2015-01-10 23:15:36148

    This is a low-cost and simple intercom circuit design. Some intercom circuits is build by applying integrated circuits. The circuit described right her...

  • Simple Lcd Display Power Supply

    2015-01-10 23:06:2888

    Laptop computers often use large-screen LCDs, which require a variable and a negative supply to ensure maxi mum contrast. This circuit operates from th...

  • Simple BFO Metal Locator(1N4148WS)

    2015-01-10 22:56:3582

    This article describes the Simple BFO Metal Locator (1N4148WS). The principle is very simple, very practical. The circuit components can help you under...

  • Simple Amplifier Circuit 3W / 8 ohm

    2015-01-10 22:47:34103

    These Simple amplifier based transistor 3W / 8 ohm are very small and very easy to carry, work with single supply between 4V and 9V. It is based on the...

  • Simple Preamplifier ( LM382 )

    2015-01-10 21:53:48164

    This article describes the Simple Preamplifier (LM382). The principle is very simple, very practical. The circuit components can help you understand be...

  • Simple Microphone Preamp

    2015-01-10 21:39:29131

    This preamp uses a small dynamic microphone coupled to the gate of Ql. R1 is a load resistor. Audio is taken out b etween the negative side of CI and g...

  • Simplest FM Transmitter

    2015-01-10 21:10:36139

    Simplest FM Transmitter This simple FM Transmitter takes audio input through a 1/4" phono jack and, constructed as shown, without the optional antenna ...

  • Simple Bench Amplifier circuit diagram

    2015-01-10 21:10:1772

    Above schematic diagram is a small 325mW amplifier circuit based on LM386 with a voltage gain of 200 that can be used as a bench amplifier, signal trac...

  • Simple-window-detector

    2015-01-10 20:40:0288

    This simple window detector uses only half of a 7400 quad NAND gate plus four resistors, chosen so that the voltage at point A exc.,eds the voltage at ...

  • Ohmmeter - Simple Resistance Measurement

    2015-01-10 20:39:20101

    Measurement of resistor values in circuit configurations are required to be made often, as these might have changed in value due to various tolerance r...

  • Simple Circuit to Control DC Motor On/Off

    2015-01-10 20:33:4688

    This a simple circuit that use to turn on/off 12V DC motor with TTL control signal input. TheBD139should instal with heat sink. Light flasher circuit O...

  • Simple Logic Probe

    2015-01-10 20:25:4570

    This simple logic probe has both LEDs on with no signal at the input but due to the nor gates connected to the probe, indicates correctly when a high o...

  • Simple pH Meter

    2015-01-10 20:21:13183

    pH Meter Circuit pH meter measures the voltage (the EMF, electromotive force) generated by the pH electrodes (the sensor) to show the hydrogen concentr...

  • Simple IR Remote Tester

    2015-01-10 20:12:5380

    The most common problem for infra-red (IR) remote control is the failure to transmit the pulsed infra-red light. The circuit shown in the schematic dia...

  • Simple UPS

    2015-01-10 20:05:4096

    Description. This is the circuit diagram of a simple UPS that can deliver 12V unregulated and 5V regulated DC. The transformer T1 steps down the mains ...

  • Simple Circuit Interfaces 1-Wire Temperature Sensor To A Mic

    2015-01-10 19:45:5578

    Temperature-indicator and temperature-based products have generated wide interest. There are numerous applications for such devices with many possible ...

  • LM2577 simple step-up converter 6V to 12V 1A

    2015-01-10 19:42:58472

    Thisstep-up converteris intended for use in a 67 Citroen 2CV. This car, and I use the word loosely, has a 6V battery and wont support a modern radio th...

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