Studio-Grade Fully Balanced Stereo Headphone Amplifier Using LME49600 and BA4560

This little project will drive the signal from your balanced Audio source and increase both its volume and detail.  The project has been designed for professional audio lovers, this project is easy to make and low-cost solution for audio professionals, The LME49600 , LME49720 and  BA4560 ICs are used to design the project, the project can drive 16 Ohms or

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Electret Capsule Micro-Phone Pre-Amplifier Using TLV6741 Op-Amp

I am here with one more electret microphone preamplifier. This circuit uses an op-amp in a trans-impedance amplifier configuration to convert the output current from an electret capsule microphone into an output voltage. The common mode voltage of this circuit is Constant and set to mid-supply eliminating any input–stage cross over distortion, Circuit and description of the project from Texas

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Arduino Based Digital Voltmeter Using 16X2 LCD (Voltage Range 0 to 5V)

The simple digital voltmeter made  using Arduino  Nano and 16X2 LCD, the project is tested on TWOVOLT Multi-Project LCD Shield; Arduino has a couple of 10 Bit ADC pins, we have used A0 pin as an input. The PR2 Trimmer pot used as input voltage, Remove PR2 to measure the external voltage. 16X2 LCD used to display the measured voltage. 

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4 Channel IR Transmitter and Receiver Module Using ht12A & HT12d

4 Channel Infrared (IR) Remote is a simple project using the popular HT12A and HT12D encoder/decoder chips from Holtek.  The project can be used in latch mode or momentary mode, mode selection possible using J1 Jumper and transmitter end. All output at the receiver end is TTL.   Specifications     Supply – Transmitter: 2.4 ~ 5 VDC, 5 V @

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Balanced Audio head-phone amplifier ( Balanced audio monitor)

Useful audio device for audio professionals, tiny board is a balanced headphone monitor, based on BA4560 op-amp, project works with 12V DC supply, Female XLR connector helps to feed balanced audio input, male XLR connector for parallel balanced signal output, and 3.5MM Stereo EP socket provided to connect headphone, easy supply input using standard DC socket, onboard potentiometer provided to

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High Precision Low Cost Adjustable Constant Current Source Output 0 to 2.5A

Current sources are widely used in industrial, power supply, LED drivers and other equipment. The project has been developed using the AD8276 difference amplifier and the AD8603 op-amp. Current source using the low power AD8276 difference amplifier and the AD8603 op amp are affordable, flexible, and is small in size. Performance characteristics such as initial error, temperature drift, and power

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Solid State DC Switching using Mosfet-Arduino nano dc-ssr shield

The simple DC switching possible with this MOSFET board, the board is made in form of Arduino Nano shield, the board can be used to drive inductive load as well as resistive load, possible application for the shield are LED dimmer, DC Motor speed controller, DC load ON/OFF, solenoid driver, and lamp dimmer. D2 provided for back EMF protection which

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