XPost: 24hoursupport.helpdesk   
   From: rf@z.invalid   
      
   Roger Dewhurst wrote:   
   >> You can get simple to use regulator chips that drop the voltage   
   >> down, you only need a couple of components to make a working voltage   
   >> regulator. Ask on News:sci.electronics.basic - the folk on there are   
   >> usually very helpful and should explain all you need.   
   >>   
   >>   
   > Why not just drop the voltage through a few diodes?  Very simple. Very   
   > cheap.   
      
   A *few* diodes at a couple of ten cents per each. A single 7809 for less   
   that a $.   
      
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