Midland 79-265 no transmit

[butter bean]

Hey all my 79-265 stopped working while it sat in my camper over the winter. receives fine but no transmit.. any ideas?
also what finales are in this radio? i cant see any numbers on mine looks like it has 2 finals.

thanks 73s
Tom AKA ButterBean

 

[AudioShockwav]

To start with, make sure it's not on PA mode, then do you have another microphone to check with?
1 broken or disconnected wire on the mike can cause that.
I am going on memory here but (can someone confirm) I believe Pin one is audio, pin 2 is ground, pin 3 is receive and pin 4 is transmit on the microphone jack.
A wire across pin 2 and 4 should put the radio in TX.

Generally most FCC cb radios have 1 driver transistor and 1 final transistor, dual finals usually appear in exports.

73
Jeff

 

[BC Coyote]

It's very unlikely that a final has quit if the radio was just sitting unused in a camper all winter! Much more likely to be corrosion in a potentiometer or switch bought on by dampness and cold. Are you testing it on a fully charged battery? Low voltage can create this condition as well.

 

[nomadradio]

Consider that microphones break more frequently than radios, all other things being equal.

73