I have two Diesel #8-32 echo power mics. I need one wired to a 4-pin Cobra & the other to a 5-pin Cobra cb radio. Does anyone have the pin# to wire color for these radios?
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Re:
Cobra 4 pin is pin1= shield, pin2= mic audio (usually the shield is wrapped around the mic audio wire).pin 3= transmit or push to talk usually red or white whichever isnt wrapped with the shield, and pin4 = receive or speaker complete
5 pin cobra=1-Audio 2- Shield 3-Receive 4-Switching Wire 5-Transmit, you can jump pins 4 and two
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its a 5 pin which all radshack radios are and they are all,99% anyway, wired the same . So take an old radshak mic apart at the plug and see how it is wired then experiment from there.
before you go thru all the trouble of wireing it ,what kind of radio did the desk mic come from.If it came from a galaxy then you shouldn't have to change a thing. 5 pin to 5 pin try it then if you have to wire it.
don't worry about wire colors. pin 1 is ground. some mic's need two wires for ground depending on the PTT switch used. pin 2 audio. pin 3 TX pin 4 RX.. thats all there is too it. once you know the pins all radios are easy. galaxy/connex/genlee same pin outs except pin4 isnt' needed for RX but can be used for 9v dc to power micropohnes.
1) violet 2) blue 3 ) shield 4) yellow 5) grnd Violet inside the mic is the power wire . Blue and yellow are the internal and external speakers. the other wires are to the antenna
Thanks so much. with your help I,ve got it fixed
cobra cpia20 wiring -cb
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