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    #1

    Online electronics training?

    I've noticed a problem. Some of the people trying to repair monitors have little or no training in electronics. Now I'll be the first to admit that not much basic electronics knowledge is involved in fixing a monitor when the problem was a bunch of Elite caps that died. Still, a basic knowledge would go a long way for the more involved problems.

    Does anone know of any online 'Elementary Electronics' (or even 'The Dummies guide to Electronics') sites?

    PlainBill
    For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.

    Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.
    Tags: None
    #2
    Re: Online electronics training?

    Some of these are "for dummies" some are not. I consider myself a dummy.
    Some have information and self-teaching info. Some are just nice to browse through.

    I like:
    http://www.kpsec.freeuk.com/index.htm

    Also:
    http://www.elna-america.com/tech_al_principles.php

    http://www.wjoe.com/technotes.htm

    http://www.micro-ohm.com/colorcode/rescolor.html

    http://www.electronicrepairguide.com...or-repair.html

    http://www.lcdrepair.us/index.html

    http://www.scribd.com/doc/9504348/Capacitor-Tutorial

    http://www.bcae1.com/

    http://www.allaboutcircuits.com/vol_3/chpt_7/6.html

    http://workmanship.nasa.gov/index.jsp

    http://www.globalsmt.net/troubleshooter/index.htm

    http://www.learningelectronics.net/


    And Of Course:

    http://preher-tech.com/default.aspx

    Comment

      #3
      Re: Online electronics training?

      Thank you!!

      PlainBill
      For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.

      Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.

      Comment

        #4
        Re: Online electronics training?

        http://www.rarmy.com/coleman/neets/index.html
        Mann-Made Global Warming.
        - We should be more concerned about the Intellectual Climate.
        -
        Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
        - Dr Seuss
        -
        You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
        -

        Comment

          #5
          Re: Online electronics training?

          Originally posted by PCBONEZ
          http://www.rarmy.com/coleman/neets/index.html
          Hmm, there are a few modules there that might be able to fill in some blanks in my knowledge base.

          PlainBill
          For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.

          Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.

          Comment

            #6
            Re: Online electronics training?

            Then for "offline" basics, one of my original "bathroom readers"...
            Attached Files
            veritas odium parit

            Comment

              #7
              Re: Online electronics training?

              I can't believe nobody mentioned RepairFAQ!
              http://www.repairfaq.org/

              Comment

                #8
                Re: Online electronics training?

                What is the normal input impedance of a DMV ?
                1Meg ohms or 10Meg ohms .
                I looked on the Fluke website for the type 87 digital gvoltmeter ,but no mention of input impedance ?
                I know oscilloscopes are generaly 1Meg input ,multiplied by 10 with an attenuated probe 10:1.
                I have a slight problem with measuring dynode chains used with photomultiplier tubes ,because the supply is very high impendance you need to take account of the DVM ,it will load the voltage and give a low reading .
                Any information would be appreciated

                Barry Wilkins

                Comment

                  #9
                  Re: Online electronics training?

                  Originally posted by barry wilkins
                  What is the normal input impedance of a DMV ?
                  1Meg ohms or 10Meg ohms .
                  I looked on the Fluke website for the type 87 digital gvoltmeter ,but no mention of input impedance ?
                  I know oscilloscopes are generaly 1Meg input ,multiplied by 10 with an attenuated probe 10:1.
                  I have a slight problem with measuring dynode chains used with photomultiplier tubes ,because the supply is very high impendance you need to take account of the DVM ,it will load the voltage and give a low reading .
                  Any information would be appreciated

                  Barry Wilkins
                  Old standard or current standard?

                  Every DMM I have ever seen had an input impedance of 10 Megohm. VOMs are rated at 'Ohms per volt (of full scale range) sensitivity'. 50K per volt was common. Back in the days of the analog meters (VTVM and TVM), the standard input impedance was 11 megohms.

                  As for the Fluke, it's 10 Meg shunted by less than 100 pf, according to page 41 of the users manual.

                  PlainBill
                  Last edited by PlainBill; 11-29-2009, 11:11 AM.
                  For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.

                  Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.

                  Comment

                    #10
                    Re: Online electronics training?

                    PlainBill I took "Solid State Computer Repair" at a school called RETS Electronics Schools" in Baltimore back in the early eighties. The course of study started with the very basics and built upon this to much more complex level. Most every class was a few hours of theory as well as a few hous of hands on work. Now we didn't work with CRT's, and I have often wondered why. Maybe CTR's/TV's were in the TV course of study. I do believe that RETS does offer online study now, and I think that they have schools from coast to coast. Check them out.
                    I think that RETS is connected with TESST in some way. This TESST College may also offer what you are looking for.
                    Just to be clear on this. My course was at the componet repair level. It wasn't a course to just teach you how to switch out add-in boards, and motherboards...ect.
                    Last edited by Junk Parts; 11-30-2009, 06:27 AM. Reason: add
                    "It ain't what you don't know that gets you into trouble. It's what you know for sure that just ain't so."
                    Mark Twain

                    "I wish to have no connection with any ship that does not sail fast; for I intend to go in harm's way."
                    John Paul Jones

                    There is a fifth dimension, beyond that which is known to man. It is a dimension as vast as space and as timeless as infinity. It is the middle ground between light and shadow, between science and superstition, and it lies between the pit of man's fears and the summit of his knowledge. This is the dimension of imagination. It is an area which we call the Twilight Zone.
                    Rod Serling

                    Comment

                      #11
                      Re: Online electronics training?

                      Check this for basics...

                      http://williamson-labs.com/home.htm

                      Not exactly training, more like explaining. But there are tutorials...

                      I liked the site and content.

                      tom
                      Last edited by tmwalsh; 12-13-2009, 05:34 PM. Reason: add thought

                      Comment

                        #12
                        Re: Online electronics training?

                        To keep it simple for you buddy check here:

                        http://forum.allaboutcircuits.com/index.php

                        Notice all the tabs on the website this is the quickest and easiest format I have found still claimed to be a work in progress but filled with information for anyone.

                        Personally I think this website and that website should join forces to create the ultimate electronics repair forum on the net.
                        Please note: I am not responsible for any harm caused to you anything discussed is just discussion. Before you try anything discussed be sure that you have the appropriate knowledge and safety gear for the job. Like with anything education and safety are first! Do not try anything @ home without it.

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