Monthly Archives: November 2011

Home made LED torch


my first homemade torch! Let me own the credits for a world’s first slimmest,rechargable,mobile battery operated high brightness LED torch maker!

Posted in Home made | 8 Comments

USB 3.0 Technology


USB 3.0 USB 3.0 is the next major revision of the ubiquitous Universal Serial Bus, created in 1996 by a consortium of companies led by Intel to dramatically simplify the connection between host

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Continuity tester


Simple continuity tester this circuit is a countinuity tester, it could be used to test continuity of a wire or any kinds of conductors,

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LED flasher


this simple circuit using 555 timer will flash one blue (or more) LED within a specified time,

Posted in 555 Timer, LEDs | Tagged , , | 3 Comments

Is Wearing Sunglasses Essential?


Is it Important To Wear Sunglasses? Ultraviolet Radiation Despite the fact that the sun is over 93 million miles away, its rays also pose important health and ocular dangers. The principal danger posed by the sun is in the form … Continue reading

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Automatic Lamp


Automatic lamp This circuit will turn on an AC Bulb when the sun sets, the working of the circuit is simple and the heart of this circuit is an LDR(Light Dependent Resistor) that is wired as a light sensor thus … Continue reading

Posted in high voltage, useful | Tagged , , | 17 Comments

TDA2030A HI-FI Amplifier


TDA2030A HI-FI amplifier About The TDA2030A is a monolithic IC in a Pentawatt package intended for use as a low- frequency class-AB amplifier. With V S max= 44 V it is particularly suited for more reliable applications without regulated supply … Continue reading

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