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  • Users: prenavin
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  1. prenavin

    Power Supply

    Hi there! While going through my electronics cupboard, I came across a transformer rated at 32volts/ 3.22Amp (105VA). I would like to build a variable power supply with a current limiting feature using this transformer. Unfortunately, all the regulators I came across, has a maximum input...
  2. prenavin

    LED clock too dim

    I'm building a digital clock using LED's in a 7 segment pattern. Each segment has around 35 LEDs and the height of a complete display is around 12 inches. i'm using two displays each, for hours, minutes and seconds. A PIC 16f877 sets the number to be displayed and a 74HC238 demultiplexer selects...

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