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looking for any info. on a sears base

Discussion in 'CB and Export Equipment and Accessories' started by w527, Apr 6, 2002.

  1. w527

    w527 Guest

    good evening all, i'm looking for any info. i can find on a sears model 60105 AM base. i can find all sorts of PLL info., but no tune-up or mic wiring for it. it's the PLL O2A chip and is a 40 channel model(for now). any info. would be a big help. well time for work, have a good night all!



    thanks,

    Bob - W527


    </p>
     

  2. Laserbeam

    Laserbeam New Member

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    I have a Sears 60105 40 chan AM base. It's an extremely rare model. Would like to find some mod docs for it. 20181001_162249.jpg
     
    #2 Laserbeam, Oct 2, 2018
    Last edited: Oct 2, 2018
  3. sonoma

    sonoma Sr. Member

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    go over to cbtricks.com and look under the secret CB books. there may be some thing over there. most sears radios have a number like 934.678954. not just 6105. at least all I ever saw had a long list of numbers.
     
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  4. Laserbeam

    Laserbeam New Member

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    I checked, there are no other numbers, just a DOC number and 2 serial numbers. This one is a real enigma! :)
     
  5. nomadradio

    nomadradio Analog Retentive

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    A clear, readable close-up pic of the serial number plate might help a lot. Should reveal the full Sears catalog number.

    The "DOC" notice means it's a canadian radio, not a USA model.

    73
     
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  6. Laserbeam

    Laserbeam New Member

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    Here is the plate. For some unknown reason the DOC number was defaced, but it can more or less be still read.
     

    Attached Files:

  7. TM86

    TM86 Destroyer of radios

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    Found a Sears 60105 in my copy of the CB PLL Data Book. That has it as a Cybernet chassis PLL02A "Late Generation AM 2-Crystal Loop, 40 Channel."

    I'm guessing if you open it up there's a board number on the main circuit board along the lines of "PTBM057COX" or something like that. With the board number someone here should be able to find a similar enough radio that a Sam's or other service manual could be found, if indeed it's what my book claims.
     
    Laserbeam likes this.
  8. Laserbeam

    Laserbeam New Member

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    OK I think I have the board ID here. PTBM050COX
     

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  9. sunbulls

    sunbulls Well-Known Member

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    That’s a big help. The RCA Co-pilot 14T303 has that same board. Several other RCA’s also use that board, but they’re mobile radios. I think the 14T303 base with the power supply schematic will be a closer match your radio. You can find the service manual and schematics on CBtricks.
    http://www.cbtricks.com/radios/rca/14t260_70_14t303_4_5/index.htm

    Note: The minor difference between your radio and the 14T303 is the Co-pilot has an additional small board that contains the built-in SWR circuit and a metering circuit that runs the modulation meter. Your radio doesn’t have those two features, otherwise they’re basically the same.
     
    #9 sunbulls, Oct 2, 2018
    Last edited: Oct 2, 2018
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  10. nomadradio

    nomadradio Analog Retentive

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    Good call!

    Simpson-Sears Limited of Canada used a whole different numbering system for their CB models. Howard Sams only covered USA-approved CB radios.

    The scratched-out gummint-approval (DOC) number suggests to me that it was either printed wrong, or had been submitted for approval a second time, and given a new number. Maybe?

    But the sticky label above the serial plate says "DCO", not "DOC".

    Don't see a lot of dyslexic ID labels on the rear of radios.

    73
     
    Laserbeam likes this.

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