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ID part?

Discussion in 'Electronic Repair' started by anamouse, Oct 27, 2003.

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  1. anamouse

    anamouse Guest

    Can someone help me ID these? I know of resistors, capacitors, etc..but I am
    unsure what these are called. Here are some pictures I posted here:

    I believe I have heard these referred to as "IF Cans". But I don't know their
    true name.

    Also, how can I tell the difference between them? They have different colour
    tops on them (red, blue, yellow, orange, brown, white, black). And some have
    numbers such as:

    blue top: ITF 114
    pink top: ITF 113
    brown top: ITF 112
    white top: ITA 111
    yellow top: ITA 101
    red top: no writing
    orange top: ITF 111
    black top: ITA 112

    The picture I posted is of one with a white top, and the letters ITA 111 on the
    side. On the last picture, I am showing two of these on the board. They are
    both brown, with the letters ITF 112 on the sides of them.

    What is the official name for these parts, and are they identified by the
    colour tops, or by the code on the side, or both?
  2. tim perry

    tim perry Guest

    transformers or RF transformers.

    with external (or sometimes internal) capacitance they form a tuned circuit.
    generally used for interstage coupling and bandpass filtering.

    the color coding is for factory install so the assemblers put the right can
    in the proper place. (or load the correct can into the automation assembly
    machine) there is no standard in this case.

    to tell them apart you will have to measure them with test equipment.

    sometimes, despite the fact that there are 5 or 6 legs for mounting only 2
    are connected inside to a coil.
  3. Bruce

    Bruce Guest

    yes there IF cans and in my experience rarely fail and a very good tip -
    don't put a screw driver in there and turn one to set what happens unless
    your following a procedure laid out in a service manul, the othere gurus may
    have some other tips on this concept
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