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

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   Message 70,644 of 72,318   
   Phil Allison to jurb...@gmail.com   
   Re: sci.electronics.basics, Would You Li   
   06 Jul 18 19:25:50   
   
   From: pallison49@gmail.com   
      
   jurb...@gmail.com wrote:   
   >   
   >   
   > >"** 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. "   
   >    
   >   
   > Not so much.   
   >   
      
    ** Here comes the same old bullshit plus a massive context change.   
      
      
   " The ones that are bad were stressed more, the others in the unit of the same   
   make and age may not have been and not as much of the electrolyte has been   
   boiled out. In circuits of the latter type, ESR is not that critical. Nut with   
   the high pass filter    
   it makes the value less important. "   
      
    ** Goble-de-gook.    
      
      
   > So acceptable ESR readings are not going to be found on a chart.   
      
    **  Non sequitur.   
      
      
   " What's more. my device does not actually read ESR in a lab type fashion, it   
   is meant more as a go/nogo tool to speed up troubleshooting, even for those   
   who can't really troubleshoot. "    
      
    ** The fool's device exist only in his imagination.    
      
   >    
   > >"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. "   
   >    
   > Yeah, double or even triple the secondary voltage and the condition   
   > of the caps becomes quite important.    
   >    
      
    ** Insane crap !!!!!!!!!!!!!!!!!!!!!!!!!!.    
      
    All the HV electros would EXPLOD if you did that.    
      
   > >"Of course, extremely old caps and any that show signs of having oozed   
   electrolyte get replaced -  no questions. "   
   >    
   > Have you noticed that most of them took a hell of alot longer to go bad ?    
   >    
      
   ** No.    
      
   >    
   > There is the Dick Smith, fine and good. But for servicing you don't need    
   > to know between 1.7 and 1.8. Why ?   
      
      
   ** 2 digit resolution is hardly excessive.    
      
      Wot a demented moron.   
      
      
   ....  Phil   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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