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Thread: narco com 120 radio

  1. #1

    narco com 120 radio

    Hi All,



    Just returned from a 1200 mile round trip and the ole' Sundowner worked like
    a champ. But my Narco Com 120, which is an older mechanical model,
    developed a problem. It transmits and receives just fine but the display
    numbers for the "left of the dot" part of the frequency (119. 120. etc.)
    began "slipping". Sometimes a twist of the knob shows no change, sometimes
    the display stops in between numbers, etc. (The other two knobs work and
    control the remaining display numbers accurately). Whatever the connection
    between the left knob and the numbers display is, has either become
    "unconnected" or has broken.



    Any ideas about what I'm looking at here? i.e. Can it be fixed? By me? By
    a tech? Or need to replace entire unit?!?!?



    Help appreciated.



    -Rick

    2010A



    [Non-text portions of this message have been removed]



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  2. #2

    narco com 120 radio

    >Narco Com 120, which is an older mechanical model, developed a
    >problem. It transmits and receives just fine but the display numbers for
    >the "left of the dot" part of the frequency (119. 120. etc.) began
    >"slipping". Sometimes a twist of the knob shows no change, sometimes the
    >display stops in between numbers, etc. (The other two knobs work and
    >control the remaining display numbers accurately). Whatever the connection
    >between the left knob and the numbers display is, has either become
    >"unconnected" or has broken.

    This is the typical failure mode of the Narco Com 11 and Com 120
    series. The plastic gears in the tuning selector have failed with
    age. They usually crack from the metal shaft out to the base of a gear
    tooth, and then become loose on the shaft. Narco isn't much help repairing
    them. They consider them obsolete, and parts are not available.

    I have seen a few ingenious owners obtain METAL gears and repair the
    selectors. Who knows how you get that signed off, etc.

    My solution has been to buy the TKM MX-11 slide in replacement that is
    digitally tuned and flip-flop for about $800.

    Bob Steward, A&P IA
    Birmingham, AL



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