From: pallison49@gmail.com   
      
    jurb...@gmail.com wrote:   
      
   >   
   >   
   > It also goes to the ESR detector system. That is through a high pass   
   > filter and then diode detected, that is whatever the cap did not shunt.   
   > That could be calibrated somehow to ESR in ohms but that is not what I want.   
   > I want to know if it is good enough to work in a circuit. And I want it FAST.   
   >   
   >   
      
    ** For that to be the case, YOU have to know in ADVANCE what the acceptable   
   ESR readings are for each electro you need to test.   
      
   I regularly work on valve / tube amplifiers and am therefore familiar with ESR   
   readings for high voltage electros in the range of 22 to 220 uF. No need to   
   look up any lists and my spares stock is available to compare readings with   
   new parts.   
      
   For example, the 5 or 6 HV filter electros in most Fender tube amps can be   
   checked and evaluated with a Bob Parker meter in under 1 minute. The small   
   cathode bypass ones take about another minute and you are done.   
      
   Of course, extremely old caps and any that show signs of having oozed   
   electrolyte get replaced -  no questions.   
      
      
      
      
   .....   Phil   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)