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???
11/19/04 16:45
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#81521 - Caveat lector
Responding to: ???'s previous message
That is, "let the reader beware"

I looked at this one:
http://www.discovercircuits.com/PDF-FILES.../acdc1.pdf

"This circuit uses a novel approach to produce a fully isolated and regulated 5 volts @30ma from the 120vac power line ... A very common 8 ohm audio impedance matching transformer can be used for the transformer."

While this might be all fine under normal conditions, I wouldn't like to trust it in the event of a fault - I very much doubt that the audio transformer would survive even a few full cycles of 120VAC...

Mains transformers are cheap - why take the risk?!

List of 18 messages in thread
TopicAuthorDate
Site of Circuit Library            01/01/70 00:00      
   Nice site            01/01/70 00:00      
   we are not amused            01/01/70 00:00      
      Caveat lector            01/01/70 00:00      
         ARGH            01/01/70 00:00      
            Contact            01/01/70 00:00      
               mistakes, errors and danger            01/01/70 00:00      
            My favorite...            01/01/70 00:00      
      one more reply            01/01/70 00:00      
         Undefined behaviour            01/01/70 00:00      
   Not that Bad            01/01/70 00:00      
      Really that bad            01/01/70 00:00      
         The better circuit site.            01/01/70 00:00      
            traps for the beginner            01/01/70 00:00      
               Variable            01/01/70 00:00      
   Sorry Guys            01/01/70 00:00      
      Not a bad Site            01/01/70 00:00      
         Re: Not so bad Site            01/01/70 00:00      

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