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Simple Stereo Power Amplifier With 7905
79xx is a widely known series of low-cost, fixed-negative-voltage regulators. These integrated circuits are available with output current of 100-150 mA (L series), 0.4-0.5A...
Optimise Your Test System Smartly
As higher targets are set to increase profits and decrease operating costs, test engineers are subjected to the ever-increasing stress of improving the efficiency...
Guitar and Microphone Amplifier Using TDA2005M
This simple audio power amplifier works with guitars and microphones, delivering an output power of around 20W over a load of 4 ohms.
The amplifier...
Your Guide To Soldering
Attaining ‘zero defect’ production requires a thorough knowledge of soldering technology. Here is a lowdown on the different kinds of techniques, material and equipment...
Intercom Using LM386
Keep in touch with your family members from one room to another and also from outside areas such as the garage, using this intercom...
Designing Low Power Products Using MSP430 Microcontroller
The use of battery-operated electronics gadgets is increasing fast in our daily lives. Products are expected to be versatile, while consuming minimal power. Reduced...
Eight Channel Data Acquisition And Logging System
In environments like factories, power plants and transformers in electricity substations, controlling temperature to a safe value is important. Supervisory and control systems are...
Remote-Controlled 6-Camera CCTV Switcher
Closed-circuit television (CCTV) uses video cameras to transmit signals to specific monitors. It differs from broadcast television in that the signal is not openly...
Dual-Tone Horn
This circuit generates two different frequencies and mixes these to produce a balanced ringing tone, which can be used in burglar alarms or call...
AT89C51 Based DC Motor Controller
Motion control plays a vital role in industrial automation. Manufacturing plants in industries like chemical, pharmaceutical, plastic and textile, all require motion control. And...
