From: stereobuff07@gmail.com   
      
   wrote in message news:mf4e49dc16o5njk71sakqhrcuiod87mhdc@4ax.com...   
      
   I have been working on stuff for almost 50 years and I just had my   
   first shorted disk capacitor. (those flat brown ceramic looking   
   things)   
   This was a stereo amp blowing the fuse. I fairly quickly isolated it   
   to the power supply section and knew it wasn't a diode or the   
   transformer. That left me with 2 big electrolytics and 4 disks. I took   
   out the electrolytics with no joy so I decided I would just 'smoke it   
   out".   
   I put in a 6a slow blow and ride the glow if the element in the fuse   
   with the power switch until I saw one of the disks changing color and   
   figured out it was an internal bolted fault.   
      
   The numbers on these were undecipherable so I just found one in my   
   junk box about the same physical size and went with it .   
      
      
   Fixed another one.,   
      
   That disk capacitor could have been a MOV (Metal Oxide Varistor) or a   
   thermal fuse, or just a fuse.  They all look very similar.  Also the fact   
   that the part number didn't make sense would lead me to believe that it   
   could have not been a capacitor. Look them up on the net, there are subtle   
   differences on color, shape, how the leads come out and of course part   
   number.   
      
   Shaun   
      
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