From: liz@poppyrecords.invalid.invalid   
      
   Cursitor Doom  wrote:   
      
   [...]   
   > But then how do you determine - given that electrolytics come in all   
   > sorts of votlage and temperature ratings, capacitance values etc - how   
   > much leakage current in each case is "too much" leakage current   
   > rendering the cap unsuitable for use?   
      
   According to the Post Office Elelctrical Engineers' Journal (July 1962   
   p120) the leakage should be less than 5,000 ohm-farads for electrolytic   
   capacitors to be accepted for use in undersea cable repeaters.  If your   
   capacitor is 47,000 microfarads (0.047F), that leakage current would be   
   equivalent to about 100k  i.e. 0.1 milliamps at 10v.   
      
   For general domestic use, leakage figures at least 10 times greater than   
   that are usually acceptable.   
      
      
   --   
   ~ Liz Tuddenham ~   
   (Remove the ".invalid"s and add ".co.uk" to reply)   
   www.poppyrecords.co.uk   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)