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This Audio Amplifier circuit is useful in classrooms to reduce the strain of lecturing ,if the surrounding environment is noisy. It uses the power amplifier IC LM 380 that gives 2 watts output which is sufficient in a confined area. The Amplifier is portable and the whole circuit and the battery can be enclosed in the Speaker box itself.

A good friend of mine (electronics hobbyist) ask me if I want to make a small review about 3 of his sites and I accepted….
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Are you in the php code thing? Do you know what php programming is?
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Tivax STB-T9 is a digital converter box which brings the world of digital clarity to any analog TV. Tivax’s boxes converter superior video and audio components TVs to experience a digital clear picture.
With a solid metal construction and an internal power supply, it has a good remote (or use with you universal Remote (code 253)) and easy to use menus. You can add channels without rescanning them all. The channel guide shows both program titles & show descriptions.

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