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I am not shure if this is the correct place to post this so please forgive me if it is in the wrong section.


    Today I picked up a Realistic navaho trc-431 from 1977 it is missing the power cord but it has a 12 volt outlet so I hooked it up to a transformer so I can run it off of 12v. My problem is when I have a microphone pluged in I get somesort of almost feedback sounding thing but its not and there is no static but when I unplug the microphone I can hear the static just fine and the squeltch works and everything but I can't transmit I have tryed it on 2 diffrent mics and it does the same thing these are the same model of microphones that I have both 500 ohm dynamic mics are they both bad or what? and yes it is hooked up to a good antenna.