Tweakers' Asylum

• RE: Capacitor Orientation - Schu 10:00:02 05/31/07 (2)
  In Reply to: RE: Capacitor Orientation posted by Jim McShane on May 31, 2007 at 06:23:27

  I just found it interesting. I wonder if I could try it out on other caps I have but I would have to dissect one to see which lead is which. I also wonder if I could hear a difference if I got that far. I do find that interesting enough to consider trying it.
  
  I typically use Sonicaps if I can as I find them the most benign and they seem to let the data through without masking much of the low level detail information. Out of habit I wire them in the same direction as the writing under the assumption that the writing is in line with the construction. That may be a bad assumption. Maybe I will have to dissect a few and see.
  
  Bill
  
  

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  • RE: Capacitor Orientation - Jim McShane 10:58:08 05/31/07 (1)
    In Reply to: RE: Capacitor Orientation posted by Schu on May 31, 2007 at 10:00:02

    You can apply a signal to a cap and if you have a scope you can put the probe on the surface of the cap. If you apply the signal to one lead of the cap and then the other the scope will show one lead connection has a stronger signal on the cap surface - that's the one connected to the outer foil or plate (it's right under the surface so the signal is stronger than the other which is further away).
    
    The Sonicap people should be able to tell you which lead is connected to the outer foil, try giving them a shout.
    
    Except at RF frequencies the shielding effect is a non-issue in my experience. But as the old saying goes "a little chicken soup can't hurt", so try it if you want since it costs nothing. It may help if you have strong RF fields in the vicinity of your gear.
    
    

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    • RE: Capacitor Orientation - Schu 11:48:18 06/01/07 (0)
      In Reply to: RE: Capacitor Orientation posted by Jim McShane on May 31, 2007 at 10:58:08

      Thanks.
      
      I'll be dissecting a 1.5uf Sonicap cap this weekend just to see.
      
      Bill
      
      

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