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Archives for May, 2012

Earthquake Detector

Earthquake Detector Biased photodiode, Earthquake Circuit Diagram, earthquake detector, frequency counter, optical receiver, Oscilloscope, plane miror, two frequency laser  

6W Audio Amplifier Circuit using TDA1519

6W Audio Amplifier Circuit using TDA1519

DTMF control RELAY SWITCHING circuit using M8870, 4013, BC548

DTMF control RELAY SWITCHING circuit using M8870, 4013, BC548

Whether the purpose of transmitting TV Make?

Whether the purpose of transmitting TV Make? Different course different, the most important is to effectively cables, usually emitted in the room to receive room without cables. Afiata.com trying to invite you to learn with a TV transmitter uses FM modulation to 1 standard for voice and PAL video modulation. Audio signal to be modulated […]

what is power supply ?

what is power supply ? what is power supply ? This article is about the common off-line switching power supplies used Preamplifiers what is power supply ? +15 and -15 , GND what is power supply ? One unit of Preamplifiers has begun working, while the second one will be operational The power supply +15 […]

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