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  1. polus

    Pi Filter

    Im building a interface board which will be operating in a noisey enviroment and so, would like to filter the input. Ive read about PI filters but am not sure exactly how to calculate the values required. Theres a diagram here: http://www.tpub.com/content/neets/14178/css/14178_164.htm Are...
  2. polus

    Digitally controller PSU

    Hi All, I
  3. polus

    Measuring 10mV analogue signal

    I have a varying analogue signal of about 10mV. Does anyone have any clever ways of the most accurate way of measuring this (It has to be extremly accurate)? I have experience in programming PIC
  4. polus

    Laser Diffuser

    Hi i was wondering what area i should be looking into to making a laser diffuser for speed guns...? Any tips, oviously if i made one sucessfully i would post all the details :)
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