Recent content by bobbyrae

  1. bobbyrae

    Help me understand my wall wart

    OK, I guess I need to clarify. Sorry! Thanks for the responses so far, but I have been googling and found out about SMPS and know what the purpose of a charger is. I know that it takes 120V, rectifies it, then uses an oscillator and higher frequencies to increase the efficiency of a small...
  2. bobbyrae

    Book Reviews

    Complete Guide to Reading Schematic Diagrams. John Douglas-Young. http://www.amazon.com/Complete-Guide-Reading-Schematic-Diagrams/dp/0131604163/ref=sr_1_3?s=books&ie=UTF8&qid=1401667298&sr=1-3&keywords=john+douglas-young The book is dated and out of print, but it takes a unique approach to...
  3. bobbyrae

    Help me understand my wall wart

    My USB cell phone charger takes about 5.5 hours to charge my phone, so obviously there is a problem. I have been able to charge the phone off my computer's USB port in 2 hours, so it CANNOT be the cable or the phone, and as most of you already know, these cheap little chargers are the first...
  4. bobbyrae

    Hello, Welcome! (Introduce yourself)

    Hi, I'm new here and thought I would say hello. I like the site. I've been hanging out at a variety of electronics, car repair, and stereo forums, enjoying whatever I happen to learn. Done some recapping of old stereos and am currently looking at recapping a computer motherboard, which is a...
  5. bobbyrae

    problem with preview?

    I was typing in a new thread, my first here actually, and wanted to preview what I had typed along with the pic. When I did so, I wasn't so sure that the preview was actually showing me the potential post. I know I couldn't edit it, so I hit the back button, and .... uh-oh! Now everything I...
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