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   sci.electronics.basics      Elementary questions about electronics      72,318 messages   

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   Message 72,251 of 72,318   
   StevWolf to All   
   Testing small Transformer questions   
   22 Feb 23 05:52:42   
   
   From: colinmarr0@gmail.com   
      
   I have a dead Ac/Dc adaptor. I'm busted it just to learns stuff.   
   Im trying to learn how to test Transformers. This transformer says on it   
   AMS10405 RG 1320F. I provide this to give all information, however Im not sure   
   it matters much to my question.   
      
   I have so far removed from what I can gather are the Primary wires from the   
   board. I assume they are because they are white and black and are literal   
   wires going into transformer, as oppose to all the other connections which   
   appear to be pins in the    
   circuit board.  I believe to properly test transformer you need to remove it   
   fully eventually.   
      
   Here are my results with digital tester, When set to continuity, which appears   
   to be (2) ohms setting.  I get Beep and .002 Ohms.   
   This seems to be very low ohms.   
   I do find it difficult when any information on testing transformers says check   
   with the data sheet. I'm sure someone will say sure here is the information   
   its easy to find.   
   Does .002 Ohms seem right for the primary.   
      
   Regards   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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