I want to put talkback on my cb myself. - Cobra 29 LTD CB Radio

it can be done but it is a long process . check out www.cbtricks.com they have the information you need about talk back . if what they have isn't what you want you may have to google it for the information you want.

Both should go to the CB radio. One would be for "audio out" from the radio, the other should be for "audio in" to the radio to handle the "Talkback" feature. I doubt that most CB radios will support this. Your best bet is to determine which plug provides output to the speaker (so you have better audio output from your CB - if that's actually possible) and disregard the 2nd plug if your radio doesn't support it. Hope this helps.

adjust your talkback to just open then set your echo to where you want it. Now turn your amp on and re-adjust both the talkback and the echo . If you have a speaker nearby the radio may be feeding back through it so move it away from your radio . Now start talking with the mic and adjust your echo because you should be able to hear yourself talk through your talkback.

take off top and bottom covers.look for the ext and pa speaker in putsolder a 33 ohm resister over the pos and neg of the plugins,one lead for each and now you have talkback.

Remove D80 to achieve talkback, or put on switch. - www.killercatradio.com

When you key up the mic ungrounds the speaker so you don't hear anything through it, so to get talkback you're putting a 100 ohm 1, or 2 watt resistor between the switched side of the speaker and ground, now when unkeyed the mic grounds the speaker as usual, but when you key the resistor allows a bit of audio from the audio amplifier, not decoded RF, to still get through. I think the pa/ext spkr. jacks are a convenient place to connect it. You may decide to control talkback by running the circut thru a switch like brite / dim switch . Want less talkback, use more resistance, 150 ohm . Too much talkback can become feedback . I hope this helps, J

one turn off echo and talkback will turn off. or disconnect the wire goin to the transistor off the echo board that turns on the talkback.

Open the case on your radio. Solder a 100 ohm resistor between the pa jack and ext speaker jack. You can add a switch if you like to turn it on and off. The lower the resistance, the louder the talkback.

A 200 ohm 1-watt resistor across pins 1 & 4 of the mic jack will make some talkback. More or less resistance will make less or more talkback. Note the association of less and more.