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  1. Sugar1

    IC question

    hi guys... im a newbie and im so confused by this.. pls help .. if an IC has 16 pins.. and only 4 pins are needed... does this mean that the 12 ramaining pins are useless?... and all i could do about them is give them a hole? i meant... putting an IC on a pcb that has 16 pins.. and only 4 is...
  2. Sugar1

    my first design.. pls help

    hi.. i really need help correcting me with this one.. cuz i really know that there is something wrong with my design since this is my first one and im still a newbie.. by the way... this is a 9v power supply output.. and im using a transformer that is 220v 12-0-12. heres the schematics and my...
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