CB shops?

Discussion in 'CB Radio Forum' started by RioT_RockR, Feb 13, 2013.

  1. Turbo-T

    Turbo-T Road Train Member

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    Hopefully your company shop knows what they're doing. How a CB transceiver operates seems to be a mystery to most.
     
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  3. mike5511

    mike5511 Road Train Member

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    That is so true. Mechanics and CBs don't seem to mix very well!!
     
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  4. volvo244t

    volvo244t Road Train Member

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    Lee is a twin final 50 watt radio... I could see a HP40W pushing "135" watts but not a Lee.

    Cobra 29s don't do 50 watts or even close, no matter what anyone told you, nor what you saw on a watt meter. As soon as distortion and harmonics are present, watt meters become useless as the harmonics essentially trick them to swing higher. All watt meters are subject to this, even the venerable and expensive Bird units.

    I promise you any "50 watt" Cobra 29 looks like the enchanted forest on a spectrum analyzer.
     
  5. ExOTR

    ExOTR Windshield Chipper Extraordinaire

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    My cobra29 is "high output" with a different final, fully tuned and all. I can push 18 watts, no way to push 50 on these.
     
  6. volvo244t

    volvo244t Road Train Member

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    Yep. That IRF520 mosfet gives you an extra half to one watt, with a proper tune and alignment, and is more fragile than the original 2sc2078 bipolar unit.
     
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  7. rabbiporkchop

    rabbiporkchop Road Train Member

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    Good luck finding performance like this east of the Mississippi River.
     
  8. ExOTR

    ExOTR Windshield Chipper Extraordinaire

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    No clue what is actually in it, I just remember he replaced a few different components. Shows between 15-19 depending whose meter it is hooked to, and has held up pretty well. Radio has been going strong for almost a decade, mixture of oil field/aggregate/OTR, nightwatch illumination burned out by 2010 though. Not shabby for a 220$ radio....
     
  9. bored silly

    bored silly Road Train Member

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    That's badd mojo then really
     
  10. bored silly

    bored silly Road Train Member

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    Know a guy who says he gets 60 watts out of a cobra 29.... I smell doo doo and it stinks
     
  11. mike5511

    mike5511 Road Train Member

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    I've got a Cobra 25 with a 2SC1969 and appropriate driver in it. I forget what it will do, but I get "big radio" comments on it just using a Lil Wil antenna.
     
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