XPost: uk.rec.driving   
   From: dave@davesound.co.uk   
      
   In article ,   
      Major Scott  wrote:   
   > Take for example a 6 volt DC supply connected to an LED in series with a   
   > 200 ohm resistor. 2V 20mA at the LED, 4V 20mA in the resistor.   
      
   > Now change the supply to 4V.   
   > 2V 10mA at the LED, 2V 10mA in the resistor.   
      
   Not so, since the forward voltage drop of an LED is a constant.   
      
   > Lowering voltage will dim the LED.   
      
   That bit is at least correct.   
      
   --   
   *Experience is something you don't get until just after you need it.*   
      
       Dave Plowman     dave@davesound.co.uk     London SW 12   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)