From: pchung705@gmail.com   
      
   Good side of R-C circuit integrator that has no voltage offset to be   
   integrated, like it is the case with op-amp integrator. Bad side is that   
   series R-C circuit integrator is not so good integrator as one with the   
   op-amp, but with higher frequency and    
   higher resistance, R-C circuit integrator is closer to perfect integrator.   
   However, there is new tutorial   
      
   http://www.cirvirlab.com/index.php/electric/104-r-c-circuit-integrator.html    
      
   and online simulation   
      
   http://www.cirvirlab.com/simulation/r-c_circuit_integrator_online.php   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)