From: christopher@librehacker.com   
      
   For posterity: after further experimentation, I figured out that the two   
   following adjustments were key to solving the problem:   
      
   (1) a 47 uF capacitor from the signal input pin (pin 3) to ground.   
      
   (2) a 47 uF capacitor from power supply pin (pin 6) to ground.   
      
   I also tightened up the connections some, reducing the length of wires,   
   and trying to bring the ground paths closer and to a common point.   
      
   With 9V supply, an input of 100 mV rms gets me output of 1.86 V rms. The   
   signal is beautifully clean at various frequencies I tried from 1 kHz   
   to 20 kHz.   
      
   I'm still using the breadboard. I tried deadbug but was having a lot of   
   trouble with connections from the tiny DIP leads to the ground plane and   
   elsewhere. Guess I need more practice. The other components (resistors,   
   etc.) were easier to deal with.   
      
   --   
   Christopher Howard   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)