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Problem for CB Radios

Generic problem for all CB Radios

Mic wiring problems.

By sitdwnandhng on Nov 18, 2008

" "

I installed a Maxon MCB40 in my jeep but lost the orignal mic for it. My friend gave me a Cobra CA73 mic and when its plugged in all I get is humming and clicking. I think the pins are different for both of them. I have the cover off the cb and the end off the mic but dont have a clue where to swap the wires to. Can someone help me out. Thanks

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Same Problem

Apr 15, 2009

- I have a Cobra CA73 Mic. I need the replacement switch, but cannot
get this from Cobra. Any suggestions? twfisk@ntelos.net- twfisk

Solution #1

posted on Sep 16, 2009

msdowney748

Rank: Guru
Rating: 85%, 28 votes

I have one for a Cobra CA50 may work
pin-1 shield or ground
pin-2 audio lead
pin-3 tx
pin-4 rx
there are one more
pin-1ground
pin-2 audio
pin-3-rx
pin-4 -tx

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This Problem Also Relates To: Cherokee CBS2100 40-Channels Base CB Radio Cobra 19 DX IV CB Radio Cobra HH 37 ST 40-Channels Handheld CB Radio Cobra 19 Ultra II CB Radio ICOM Informatique M32 Handheld CB Radio Maxon HCB-30A CB Radio Midland 75-785 Handheld CB Radio

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