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vswr's latest activity
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Here's a better picture of the clarifier circuit to help with troubleshooting. Transmit and receive both form their own voltage divider... -
vswr replied to the thread Cobra 142 GTL.Oh. Ok. Wasn't sure. I will get those in the morning. You want them centered in rx and tx AM only?
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vswr replied to the thread Cobra 142 GTL.Channel19 L13 frequency. I hear the clowns from 38L on 39L. AM, is also offset by 10 k.
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vswr replied to the thread Cobra 142 GTL.Im thinking that the outputs are all correct. The highs and lows all check out. Even the skips check out. Thats what makes mevthink that...
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vswr replied to the thread Cobra 142 GTL.Tlright now, it stands that I put the open clarifier back correct. Im taking an 8 volt source from the receiver at the point where the...
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vswr replied to the thread Cobra 142 GTL.I plan on it trust me. Im just so fried right now having put a solid week of at least 5 hours a day into it so I need a little timeout...
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I wonder what type of phase detector is inside the 8719 chip. Can the clarifier being out of whack be causing the PD to lock on to a...
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vswr replied to the thread Cobra 142 GTL.Another interesting find. When the clarifier if tuned to 9 oclock and 8 oclock, inpick up channel 38 perfectly while Im on channel 40...
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vswr replied to the thread Cobra 142 GTL.Yeah. I just saw it. Now I know some effing clown yook a jewelers screwdriver to it and most likely to every slug.
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Down with cracked slugs! lol.
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vswr replied to the thread Cobra 142 GTL.Interesting you say that. I just noticed that the slug in L24 is cracked! Now, i know that this radio has been golden screwdrivered.
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vswr replied to the thread Cobra 142 GTL.I'll get that for you asap. Im taking a break for now to cogitate this conundrum.
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Perhaps I misunderstood earlier. I have been under the assumption that the VCO is outputting the same thing in TX and RX. Is that not...
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vswr replied to the thread Cobra 142 GTL.I ised your charts to check the VCO frequencies. Even the skips are at a 10k jump. One fellow said I should replace the 8719 but Its...
