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TEK 2225 oscilloscope

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    #1

    TEK 2225 oscilloscope

    Has anybody got the circuit diagrams for this oscilloscope ?
    Mine has an intermittent fault where the position only moves in the bottom half of the screen ,on both channels .
    Think it is one of the longtailed pair amplifiers that drives one of the Y plates in the CRT .May just be one of the ww resistors going O/C.

    Any help would be appreciated

    thanks

    Barry Wilkins
    Tags: None
    #2
    Re: TEK 2225 oscilloscope

    Well that's interesting.
    I have a 2225 with the same problem but it only affects one channel.
    Not planning to fix it though. I got a better scope instead.
    I blamed the problem on FedEx for dropping it and smashing the crap out of the front panel and busting the handle in half.
    The Insurance reimbursed me 100% anyway so when I find my round two-it I'm ebaying it as a junker.
    .
    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.
    -

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      #3
      Re: TEK 2225 oscilloscope

      I'll look around and see if I'd found any docs.
      I don't think I did but I remember looking online.
      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

        #4
        Re: TEK 2225 oscilloscope

        Sorry
        All I have is that silly 2 page 'how to use the knobs' sheet.
        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: TEK 2225 oscilloscope

          Fixed the scope ,one of the two transistors that drive the Y plates did not have a connection to the collector .
          Quite easy to solder a wire to the case ,but bit of a struggle to refit it .

          Barry Wilkins

          Comment

            #6
            Re: TEK 2225 oscilloscope

            Good to know.
            ~ Thanks ~
            .
            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

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