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  1. F

    Astatic 575-M6 Squeal issue

    But its a 5 pin cobra/uniden mic plug. Am I leaving one pin empty? Whats weird is it works but at a very low volume and squeals. Does this sound typical of a incorrectly wired mic?
  2. F

    Astatic 575-M6 Squeal issue

    Wait a second... I thought blue was pin #4 and shield was pin #2? Am I missing something? Am I leaving pin #4 empty?
  3. F

    Astatic 575-M6 Squeal issue

    I just picked this mic up from a friend of mine who no longer had any use for it. Was told before it was put away the connector was changed from 4 pin Cobra to 5 pin Cobra. This thing has been sitting in a dirty attic for years. The battery connector was barely hanging on. So I threw a new...
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    $49 Astatic 575-M6 Mic

    The one I just bought looks different Mine only says Astatic and nothing else under the screen. Have no idea what vintage this one is. I need to post a thread on a problem I'm currently having with it.:bored:
  5. F

    Workman Roger Beep Improvement (less annoying)

    I know this is an older thread but... I tried to install this kit tonight on an older Grant. What a dissaster! Directions list a green wire and there isn't even a green wire coming off the board. Directions are horrible. I wired to the switch for 12v like they say. Soldered to a metal ground...
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    Old uniden Grant PC409ac board

    MB8719 In the Grant After changing the cap in this radio I was wondering if it is possible to expand the frequencys even more than I have. There was a tech one time who did a mod on a 142gtl that went from 26.515-28.045. I know the Grant has the same chip but all i see for the standard mod is...
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    Diesel/Superstar Echo Mic with Roger Beep Malfunctioning

    Ok, so I picked up this little gem off the worlds biggest auction site. Looked alright but when I hooked up the battery I heard something click(like a relay)inside. Didn't think too much about it till I hooked it up and it was keying up the radio without even touching the mic. I checked...
  8. F

    Old uniden Grant PC409ac board

    Thanks loosecannon! I just wanted to add to this old thread and thank you big time for helping me with the same problem. I'm currently in-process of restoring an old Grant with the same board and same C95 issue. This was a radio that was headed for the dumpster for sure. Fully modified and I...