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newbie first laser build( need help)

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Aug 14, 2014
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hi guys i'm new to the forum.... i'm building a LM317 constant driver like the one in the picture but my laser diode is a M140. A single resistor value of 180 Ohms and the Pot is 500 ohms adjustable..... What will the Current output will be? and the output voltage? my input voltage is 7.2-9.0volts...




Thanks for help from member in advance
 

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