The simmer circuit is interesting - I believe it must exist in the   
   "proportional" zone directly below the "Geiger" zone, voltage-wise. This comes   
   up a lot in ion chamber technology to detect particles.    
      
   But what I want to ask Phil is why he did use the "orange" led's - opting for   
   a white led and IF (intererence filter.) You must pardon me for curiosity, as   
   it's these "knife-edge" decisions which are interesting in engineering.    
      
   I'm going to suppose it was because the exact color of the eggs required a   
   critical knowledge of what's going on in this "warm" wavelength? Or were there   
   other factors? (You mentioned low output from the led's in this region, but I   
   see the "orange"    
   manufacturers bragging about brightness.)   
      
   If I am being too persistent, feel free to ignore the question. But as I said,   
   how the maestro does the surgery is a good study.   
      
   jb   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)