Nanotechnology is defined as fabrication of devices with atomic or molecular scale precision. Devices with minimum feature sizes less than 100 nanometers (nm) are considered to be products of nanotechnology. Fabrication of nanomachines, nanoelectronics and other nanodevices will undoubtedly solve an enormous amount of the problems faced by mankind today. Nanotechnology is currently in a [...]
Continue reading → We cannot forget 9/11 when 101 people including nine foreigners and 14 policemen have lost their lives while about 300 people were injured in the worst terror attack seen in the country in which desperate men fired indiscriminately at people. our brave solders were Fought against the militants to free all the hostages from Mumbai [...]
Continue reading → This is a very simple, low cost, Hi-Fi quality power amplifier. You can build it 5 ways, Please follow the table (from 20 W to 80 W RMS). Description: The first thing that you must do, is to measure the end transistors (T3 and T4) amplifying coefficient, the hfe or ?. If their disagreement is [...]
Continue reading → It’s a high Quality, simple design with 20 to 30V supply. Circuit Diagram: Parts: P1_________________10K Log.Potentiometer (Dual-gang for stereo) P2________________100K Log.Potentiometer (Dual-gang for stereo) (See Notes) R1,R2_____________100K 1/4W Resistors R3,R6______________15K 1/4W Resistors R4_________________10K 1/4W Resistor R5_________________22K 1/4W Resistor R7__________________1K 1/4W Resistor R8________________560R 1/4W Resistor C1,C2,C5____________2?2 63V Electrolytic Capacitors C3________________470?F 35V Electrolytic Capacitor C4__________________1?F 63V Polyester [...]
Continue reading → Circuit Diagram: Parts Lists: R1 = 1k R2 = 470k R3 = 10k R4 = 5k1 R5 = 4k7 R6,7 = 100k R8,9 = 1M R10 = 10R C1-10 = 100nF/63V C11 = 47nF/63V E1,4 = 220uF/16V E2 = 4u7F/16V E3 = 22uF/16V IC1 = ISD2560 + socket IC2 =LM78L05 IC3 = LM386 + socket [...]
Continue reading → A amplifier of acoustic frequencies can be manufactured with discernible materials, despite is known so much the difficulties of finding of materials, what the problem of regulations. These difficulties are overcome relatively easily if we find amplifier in form completed. Completed STK465 is an amplifier of acoustic frequencies that offers qualitative output, using minimal exterior [...]
Continue reading → It’s a very high Quality very simple unit and there is no need for a preamplifier. Circuit Diagram: Amplifier parts: P1 = 22K Log.Potentiometer (Dual-gang for stereo) R1 = 1K 1/4W Resistor R2 = 4K7 1/4W Resistor R3 = 100R 1/4W Resistor R4 = 4K7 1/4W Resistor R5 = 82K 1/4W Resistor R6 = 10R [...]
Continue reading → Circuit Diagram: Two low voltage, low power zeners are used to control electronically the level of an audio signal. The attenuation range is from 6 to 58dB for an input current from 0.042 to 77 mA corresponding to a control voltage from 2.7 to 7.5V. If control voltage is limited to 5V, the attenuation is [...]
Continue reading → This project is a 3 or more lines mixer. For more than 3 inputs you can repeat the input parts (P=10K R=22K). It powered with 9Vdc Circuit diagram Components Layout PCB (5,5cm x 4,4cm)
Continue reading → This amplifier is designed for self-powered 8, 4 & 2 Ohm loudspeakers with Bass-boost switch Circuit diagram: Parts: P1 = 10K Log.Potentiometer R1,R2 = 33K 1/4W Resistors R3 = 33R 1/4W Resistor R4 = 15K 1/4W Resistor R5,R6 = 1K 1/4W Resistors R7 = 680R 1/4W Resistor R8 = 120R 1/2W Resistor R9 = 100R [...]
Continue reading → Designing of 25W Mosfet audio amplifier with High Quality simple unit and No need for a preamplifie. Circuit diagram Parts: R1,R4 = 47K 1/4W Resistors R2 = 4K7 1/4W Resistors R3 = 1K5 1/4W Resistors R5 = 390R 1/4W Resistors R6 = 470R 1/4W Resistors R7 = 33K 1/4W Resistors R8 = 150K 1/4W Resistors [...]
Continue reading → A giant spider has been discovered in the dunes of the Sands Of Samar in the Southern Arava region in Israel by the tem of biologist in the University of Haifa- Oranim. The scientific name of this creature is Cerbalus aravensis. The spider found is an nocturnal animal. Its foot is nearly two foot long. [...]
Continue reading → After human beings have started swimming, they have been trying various techniques to breathe like fish. Till now they do this by taking the lightweight oxygen cylinders with them but that has the limitation. The oxygen cylinders can be used for the limited time period only. Then, Alan Izhar-Bodner, an Israeli inventor, has developed a [...]
Continue reading → Digital Angel manufactured microchips using bio thermal RFID chips in chickens which would serve as the warning system for avian flu. It is made for implantation in the animals. Recently they introduced their BIO-Thermo which is a temperature sensing implantable RFID microchip and identity system. The ultimate goal of the researchers is to make poultry [...]
Continue reading → All matter, whether solid, liquid, or gas are a collection of molecules, and each molecule is made up of atoms. Each atom consists of a nucleus, which is made up of protons and neutrons, and electrons which circle around the nucleus. Electricity flows when these electrons freely move outwards from their orbits. Some materials becomes [...]
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