XPost: 24hoursupport.helpdesk   
   From: ianREMOVETHISjackson@g3ohx.demon.co.uk   
      
   In message , rf   
    writes   
   >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 $.   
   >   
   More like "a *few* diodes at a couple of cents per each".   
      
   3V to drop = 5 diodes @ 0.6V per diode. No other circuitry required.   
   More than good enough for the job.   
   --   
   Ian   
      
   --- SoupGate-Win32 v1.05   
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