1. Abhay

    yo, i have made an LED light box that flashes in time with an audio suroce, and im planning to make it only flash to the bass. this circuit is exactly what i need, however im unsure how to wire it up. from my audio suroce i have 1 wire of audio ( guessing that would go to the +) and one ground wire (that would goto the negative?) this is then going into a TIP31 transistor, which still needs the ground and audio seperate would this work :s only electronics ive ever done is at school with bulbs!

  2. Guru

  3. Guru

    Analog refers to electronic transmission accomplished by adding signals of varying frequency or amplitude to carrier waves of a given frequency of alternating electromagnetic current. Broadcast and phone transmission have conventionally used analog technology.
    Everything we see and hear is a continuous transmission of information to our senses. This continuous stream is what defines analog data. Digital information, on the other hand, estimates analog data using only ones and zeros.
    A representation of an object that resembles the original. Analog devices monitor conditions, such as movement, temperature and sound, and convert them into analogous electronic or mechanical patterns. For example, an analog watch represents the planet’s rotation with the rotating hands on the watch face. Telephones turn voice vibrations into electrical vibrations of the same shape. Analog implies a continuous signal in contrast with digital, which breaks everything into numbers. Video cameras scan their viewing area a line at a time and convert the infinitely varying intensities of red, green and blue (RGB) light into analogous electrical signals
    1) In telecommunications, an analog signal is one in which a base carrier’s alternating current frequency is modified in some way, such as by amplifying the strength of the signal or varying the frequency, in order to add information to the signal. Broadcast and telephone transmission have conventionally used analog technology. An analog signal can be represented as a series of sine waves. The term originated because the modulation of the carrier wave is analogous to the fluctuations of the human voice or other sound that is being transmitted. 2) Analog describes any fluctuating, evolving, or continually changing process
    When used in reference to data storage and transmission, analog format is that in which information is transmitted by modulating a continuous transmission signal, such as amplifying a signal’s strength or varying its frequency to add or take away data. For example, telephones take sound vibrations and turn them into electrical vibrations of the same shape before they are transmitted over traditional telephone lines. Radio wave transmissions work in the same way. Computers, which handle data in digital form, require modems to turn signals from digital to analog before transmitting those signals over communication lines such as telephone lines that carry only analog signals.