Copper Talk » Ask The Tech » General Technical Questions » Archived Messages » Hi .Êi just picked up an old shure model #cm4u handmike, and i would like to know « Previous Next »

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Rightwing
Posted on Tuesday, July 30, 2002 - 1:20 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

if anyone has any experience with this dynamic magnetic mike and what the functions or the wires are. i believe it has a white, ground red and another dark wireperhaps a black or green. i would like to wire it up to a 4 pin cobra radio.on the front of the mike it says INTERNATIONAL,but it was made by shure brothers. can anyopne help? thanks ahead of time.
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Bigbob
Posted on Thursday, August 01, 2002 - 8:05 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Not joking,try shure.com they may still make it.
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Hook948
Posted on Thursday, August 01, 2002 - 11:17 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

With a ohm meter, Touch 1 lead to the shield and check the other wires for a "short".The wire that shows a short will be the RX. Now,still touching 1 lead to the shield,key mic and check the other 2 wires for a short. The wire that shorts will be TX. The other (usually the white) will be Audio.:)
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Tech671
Posted on Friday, August 02, 2002 - 5:30 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Hey wing...
The controlled magnetics need power to work. I picked up a bunch of old Sures, had to gut the elements and replace them with CB type, rewire them. After this is done, they will not work with radios that need the mike plugged in to receive.
:(
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Rightwing
Posted on Saturday, August 03, 2002 - 12:51 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

hi guys! the wiring code for it is : white -audio, shield -ground,red-tx, black -(possibly,rx)i have all the wires except the black one connected on my ranger ar-3300.i found out by looking for the wire the shields wrapped around which is the audio,etc...funny thing however its works on my radio just fine ,like a stock mike.

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