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Stryker SR 440 VR4A and VR22?

Discussion in 'General CB Services Discussion' started by Low_Boy, Aug 5, 2018.

  1. Low_Boy

    Low_Boy Well-Known Member

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    I am not savvy enough to tell what these two VR's do by looking at the schematics but both were turned and I will need to know how to readjust them and what they do. I can not seem to figure it out.


     

  2. Handy Andy

    Handy Andy Do Your Research First, Then Decide...

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    Low Boy, look over here...
    http://www.cbtricks.com/radios/stryker/sr_440hp/tour/tour2.htm

    VR 22 is the RF gain pot, over by J108 / P108 - and one of the leads off of this goes to R190 a 10K resistor.

    Stryker440P108J108view1.jpg

    VR4(a) connects to the Squelch control on the front panel. (thru D14)

    But if you board doesn't look like the one shown - all bets are off!
    VR 4(a) is a Squelch trim - turn SQ control on front panel up a little less than a 1/4 of a turn from fully coutner clockwise (off) - this turns on the squelch - you're adjusting for noise present in the air on the receiver - adjust this trimmer unitl you hear the squelch pop and you hear hiss RX again.
     
    #2 Handy Andy, Aug 5, 2018
    Last edited: Aug 6, 2018
    Eldorado828 likes this.
  3. Low_Boy

    Low_Boy Well-Known Member

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    Same board Andy. Thank you I saw it went to tuning coils but could not figure it out.
    Thank you. Nice graphics also.
     
  4. Handy Andy

    Handy Andy Do Your Research First, Then Decide...

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    CrAzY?!

    Posted first one, it disappeared then reposted - oh well I'll remove one as a dupe...

    Twice the fun eh?
     
  5. Low_Boy

    Low_Boy Well-Known Member

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    Andy you now have the only info on the Internet about these two adjustments.
     
  6. Shadetree Mechanic

    Shadetree Mechanic 808 On The North Side of Dover

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    Good info. I have a 440 that was worked on by Stick Man and it is a talker, always get good reports.
     

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