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Part numbers

Discussion in 'Electronic Basics' started by J.E.B., Apr 17, 2007.

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  1. J.E.B.

    J.E.B. Guest

    Hey everybody, Anyone care to help A newbie figure out what part
    numbers are all about? what I mean here is... I have many parts
    ( transformers and such) with only a number stamped on them. Is there
    Any kind of code or reasoning that corresponds with these numbers?
    possibly a referance book that gives values? Thanks for any help on
    this in advance.
     
  2. Tom Biasi

    Tom Biasi Guest

    No.
     
  3. Tom Biasi

    Tom Biasi Guest

    OK I felt bad just saying "No".
    The part numbers are only significant to the manufactures of the part. There
    are some exceptions for US Military numbers but generally the numbers will
    only help if you know the manufacturer and can access their number system.

    Tom
     
  4. Each maker uses their own system. No one documents them.

    Two totally different parts can have the same number.

    Two identical parts can have the different numbers.
     
  5. Chris

    Chris Guest

    Hi, JEB. You might want to give more information about exactly what
    you're looking for.

    Trasnformers, no common numbers. You generally have to check with the
    manufacturer's information to see what it is and does.

    Resistors, caps, inductors -- no. Manufacturers have their part
    numbers, but it comes down to value and wattage for resistors, value,
    voltage and type for caps, and so on.

    Diodes and transistors -- some of the time. There are JEDEC numbers (!
    N and 2N), which are supposed to correspond to a standard.

    ICs -- not really, but they can be second sourced.

    If you want to identify a part, you might want to be a little more
    specific.

    Goodd luck
    Chris
     
  6. John Fields

    John Fields Guest

     
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  8. Guest

    I found a great Internet company - Cashfiesta.com - that
    has created a product everyone can benefit from. They
    pay you while you work or play on your computer. All you
    need to do is keep their software - the FiestaBarâ„¢ - active
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    are using their computers.

    Cashfiesta was a program that paid to anyone who was online.
    So this program was suitable very much for people that every time
    online.
    This program was free or free and did not have the risk anything

    His procedure was as follows :
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    2. Fiestabar download
    3. Install Fiestabar
    4. Login with Fiestabar

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    animation the small child stayed proceeding in the place, if he
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    every time 1000 points = 1$
    Money will be sent to our address was minimal 50$ in check.

    Unlike other companies, Cashfiesta gives you control over
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  9. --
    Service to my country? Been there, Done that, and I've got my DD214 to
    prove it.
    Member of DAV #85.

    Michael A. Terrell
    Central Florida
     
  10. J.E.B.

    J.E.B. Guest

    Thanks gentlemen, I am just starting with this hobby and am wanting to
    be somewhat self sufficiant. All of your comments have been helpful!
    P.S. while I'm sucking up... 40C20 FMC 7841 mean anything to anyone?
    I think its an scr but not sure. Theres a picture on page 59 (high
    current) In Forrest Mims Getting started in Electronics . Where can I
    find these?
     
  11. JimW52

    JimW52 Guest

    I'm so glad you pointed that out. What would we do without clever people
    like you?

    Jim
     

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    --
    Service to my country? Been there, Done that, and I've got my DD214 to
    prove it.
    Member of DAV #85.

    Michael A. Terrell
    Central Florida
     
  13. If you are looking at transformers salvaged from commercial equipment,
    they are probably custom parts, and the transformer manufacturer won't
    give you any information on them.


    --
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    peterbb4 (at) interchange.ubc.ca
    new newsgroup users info : http://vancouver-webpages.com/nnq
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  14. When I scrap stuff, the transformers tend to be one of the potentially
    useful parts, because they can be costly to buy. So if I'm stripping
    something (either that I'd bought, or found), I'll take a marker and
    mark what it came out of, and sometimes even which is the primary winding
    (though the color coding for that is usually consistent).

    This doesn't say much about capacity, but it gives a general idea of
    what it might be useful for. A tiny accessory certainly won't have
    the current of a bigger piece of equipment.

    Of course, transformers are easy, since you can hook them up to the
    AC line and measure the voltage. Current capacity won't be clear,
    but the size can help in making a guess.

    It can be great pulling a transformer out of a clock radio or something
    to power some tiny bit of equipment, since otherwise buying a transformer
    might cost more than the rest of the parts, and thus it won't be as
    handy when you decide not to put a transformer in there.

    Michael
     
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