Re: densitometers

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Something happened in the transmission, or receipt!

Roger

On 11 Oct 2009, at 7:39 PM, karl shah-jenner wrote:

this is your light source circuit, nice and safe and very stable :)

      switch           ___      68 ohm r
       \              |   |
+9VDC--  \-------------| A |------/\/\--
          |           |___|    |      |
          |             |      |     _|_
          |             |      |     \ / LED
         _|_            |     _|_   __V__
100uF    ---            |     ---     |
          |             | 0.1uF|      |
          |             |      |      |
___________|_____________|______|______|

A= 7805 voltage regulator



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