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New Addition To My Workbench

Discussion in 'CB Radio Forum' started by delta5, Aug 21, 2016.

Page 2 of 2
  1. Aug 28, 2016 #11
    Ridgeline

    Ridgeline Road Train Member

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    No, that was the audio meter, the scope was used before the detector stage to see if there was an increase in rf and the purity of the signal. Sometimes it is used to align the filtering, as in the case of a bandpass filter.

    It all depends on the radio and the service lit for the radio.

    I have a few with a 50kc second stage IF which needs the meter only, then I have a few that have a 40mc first stage that requires both the meter and the scope because of the filtering in the second stage.
     
    Ridgeline, Aug 28, 2016
    Ridgeline, Aug 28, 2016
    #11
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  3. Aug 29, 2016 #12
    delta5

    delta5 Road Train Member

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    I watched a tech align a radio by the book the other day, but he also set a pot to adjust a 455kz setting to exactly 455. I looked in the service manual and I didn't see that step. Was he doing it correctly? He also checked the 10.240 crystal and it was right on the money.
     
    delta5, Aug 29, 2016
    delta5, Aug 29, 2016
    #12
  4. Aug 30, 2016 #13
    Ridgeline

    Ridgeline Road Train Member

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    I guess, it sounds like he did it right.
     
    Ridgeline, Aug 30, 2016
    Ridgeline, Aug 30, 2016
    #13
  5. Sep 3, 2016 #14
    delta5

    delta5 Road Train Member

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    Well, I found a ham repair shop that will clean up and calibrate my CB42 test set. I popped the covers and everything seems to be original and untouched. He is going to replace the caps in the power supply for sure, and any others that need it. This seems like a nice test set if it is 100%.
     
    delta5, Sep 3, 2016
    delta5, Sep 3, 2016
    #14
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