Category Archives: electronics

8,000 tonnes of cellphone waste threating earth!!!!

By | Published: November 2, 2009
Sporting a new mobile phone may be fashionable in these well-connected times, but the discarded old handsets could poison the environment, as a whopping 8,000 tonnes of cellphone waste is estimated to burden the earth by 2012. As per a whitepaper by global consultancy Deloitte, there is a growing need to better manage the rising [...]
Posted in electronics | Tagged , , | Leave a comment

superior picture quality

By | Published: October 5, 2009
Recently, at the annual Summer Line Show of LG Electronics, the company unveiled its latest LCD (SL80 series) and LED (SL90 series) HDTVs. Both the HDTVs feature a single edge-to-edge glass panel over an ultra-slim bezel, creating a sophisticated look that turns heads, no matter if the TV is on or off. To achieve dramatically thin [...]
Also posted in technology | Tagged , , , , | Leave a comment

Knowledge of some advance transmission

By | Published: September 30, 2009
Start with the signaling system, the telecommunication system can be generalized model consisting of an information source, modulation system for coder, decoder for demodulation system, destination and of course transmission system or channel as the central feature. A telecommunication should learn how to minimize distortion by careful choice of the transmitted waveform. To do this [...]
Posted in electronics | Tagged , , , , | Leave a comment

efficiency of class A amplifier operation

By | Published: September 30, 2009
The power amplifiers is said to be class A amplifier if the Q point and the input signal are selected such that the output signal is obtained for a full input cycle. For this, postion of the Q point is approximately at the midpoint of the load line. For all values of input signal, the transistor [...]
Posted in electronics | Leave a comment

Desktop Speakers

By | Published: September 29, 2009
Desktop Speakers are the small systems that connect to a laptop or PC. They come in variations from two channels and go up to 5.1 channels. Laptops come with on board speakers but they are good only for low decibel sound. To enjoy greater acoustics, users can go for external two channel speakers that [...]
Also posted in technology | Tagged , , , , , , , , | Leave a comment

Type on your Wireless Keyboard

By | Published: September 29, 2009
Your couch may be comfortable, but it is not easy for you to sit back, relax and type on your wireless keyboard. The keys are not at the right angle and there is no flat surface for a mouse. So phantom keyboard is built with a twirling, tilting mechanism for positioning it just right. This lapboard [...]
Posted in electronics | Tagged , , , , , , , | Leave a comment