From: phil_a@tpg.com.au   
      
   "Phil Allison"   
   >    
   >   
   > ** If all the small components are OK  -   then suspect a broken wire, bad   
   > solder joint, bad ground or an unintended  short to ground that affects   
   > the feedback loop.   
   >   
   > On ohm meter and your eyeballs are all you need.   
   >   
      
    ** FYI:   
      
   I tried shorting the 470 ohm feedback resistor =  no oscillations.   
      
   I tried removing the filter electro after the choke = no oscillations.   
      
   I tried linking the output direct to the input  =  loud noise like an   
   un-muffled two stroke.   
      
   The symptoms you describe are typical of reverse feedback, like when anode   
   wires are reversed.   
      
      
      
   ....   Phil   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)