When the mike is keyed to TR my audio comes thru the speaker. Cobra 29 LTD Classic. Best Regards Jim

Wiring a Delta M3 microphone to a Cobra 29 LTD Classic CB radio requires connecting the wires from the microphone to the corresponding pins on the radio's microphone jack. Here are the steps:

1. Locate the microphone jack on the front of the Cobra 29 LTD Classic CB radio.
2. Examine the Delta M3 microphone's wiring. It should have four wires: a black wire, a red wire, a white wire, and a shield wire.
3. Determine the pin configuration of the microphone jack on the Cobra 29 LTD Classic CB radio. The pin configuration is usually printed next to the microphone jack or in the owner's manual.
4. Connect the Delta M3's black wire to the pin on the microphone jack that corresponds to the radio's ground connection.
5. Connect the Delta M3's red wire to the pin on the microphone jack that corresponds to the radio's positive voltage connection.
6. Connect the Delta M3's white wire to the pin on the microphone jack that corresponds to the radio's audio input connection.
7. Connect the Delta M3's shield wire to the pin on the microphone jack that corresponds to the radio's shield connection.
8. Test the microphone by speaking into it while monitoring the audio output on the Cobra 29 LTD Classic CB radio.

Note: If you are unsure about the wiring or pin configuration, consult the owner's manual for your CB radio or seek assistance from a qualified technician. Improper wiring can damage your radio or microphone, and may result in poor audio quality or no audio at all.

I believe to wire a Sadelta M3 microphone to a Cobra 29 LTD Classic CB radio:

The Sadelta M3 microphone has four wires: white, shield (bare wire), red, and black. The Cobra 29 LTD Classic CB radio's microphone jack also has four pins: Pin 1 (Audio), Pin 2 (Ground), Pin 3 (Transmit), and Pin 4 (Receive).

To wire the Sadelta M3 to the Cobra 29 LTD Classic, you need to connect each wire from the microphone to its corresponding pin on the microphone jack. The white wire carries the audio signal from the microphone's element to the radio, the shield wire provides a ground connection, the red wire activates the radio's transmit function when the microphone is keyed, and the black wire is used for receive audio.
Here are the specific steps to follow:

1. Cut off the existing microphone plug on the Sadelta M3 microphone cord.
2. Strip about 1/4 inch of insulation from each of the four wires in the Sadelta M3 microphone cord.
3. Connect the wires to the pins on the microphone jack as follows:

• White wire to Pin 1 (Audio)
• Shield (bare wire) to Pin 2 (Ground)
• Red wire to Pin 3 (Transmit)
• Black wire to Pin 4 (Receive)

1. Solder each wire to its corresponding pin on the microphone jack. You may want to use a multimeter to verify that each connection is solid and that there are no shorts or open circuits.
2. Once you have soldered all the wires, test the microphone by speaking into it and checking that the radio's TX meter moves as you speak. Also, check that you can hear audio through the radio's speaker when receiving signals.
3. If the microphone is working correctly, use heat shrink tubing or electrical tape to cover the soldered connections and provide strain relief for the wires.

Note that some microphones, including the Sadelta M3, may have additional features such as a built-in amplifier or power supply that require additional wiring.

PDF]EIi?tr,iitts - American Radio History

www.americanradiohistory.com/Archive-Radio.../90s/.../EN-1993-11.pdf
Nov 5, 1993 - 64 AUTOPATCH SELECTOR FOR RADIO AMATEURS ..... Memorymodes can store readings while ..... est way to do it is to base the circuit .... width (with increasing values of CB), .... Electronics Engineers' Book Club, Blue Ridge Summit, PA 17294- ...... lock onto the 19 -kHz pilot sub- ...... manually reset.using fgets to read one line at a time - Experts Exchange www.experts-exchange.com > Questions

Nov 11, 2008 - 1: 2: 3: 4: 5: 6: 7: 8: 9: 10: 11: 12: 13: 14: 15: 16: 17: 18: 19: 20: 21: 22: 23: ..... helium viceroy Audrey Isaac provision grammar cobra adrift died Liverpool .....wriggle do carbuncle firebug Elsinore Connally annotate anaconda could ..... pretend quadratic Euphrates RCA amuse CB
Cobra 29 LTD Classic CB Radio - YouTube? 5:42https://www.youtube.com/watch?v=vJle8vlsWLcAug 20, 2013 - Uploaded by C B WorldIn this product review we look at the Cobra 29 LTD Classic CB radio and ... Just like in the manual. most channels are below 3. a few are not.Cobra 29 LTD Classic Troubleshooting - iFixithttps://www.ifixit.com/.../Cobra_29_LTD_Classic_TroubleshootingiFixitCobra 29 LTD Classic is not transmitting or receiving. The Antenna is not tuned correctly; The Radio is not in CB mode; The Radio is on the wrong channel; The ...Marine Radios ' Cobra Electronics Corporation

simple,just chech the input resistance and out put...they should have even small resistance always example .5ohms .3 ohms it counts...

• That utilizes a 3.5mm jack. Like your headphone. Any PA or external speaker will almost surely come with this connector on it. But if your making your own, a 3.5mm jack is what you need.

• Hope this helps and thank you for using FixYa.

Regards, Tony

Hi, my name is John. Welcome to FixYa. unplug the external speaker and try it, then plug it back in and see what happens. Keep on plugging it in and out, could be sticking, let me know how it goes. Thanks for choosing FixYa.....John

I have you had the radio peaked? If so this could cause that problem there is a can in the back of the radio that can turn it off. But if you haven't then get your SWR checked.

make shure that the rf gain on the front of the radio is turned up. if you have another mike that you can use on the radio.If the mike has a wire that has broke at the mike connector the speaker will not turn on when you unkey the radio.

Had fixed the same problem yesterday. My cobra worked when it wanted to, when it didn't it looked like you explained. I found out that on my cobra the blue wire on the mike connector was broken. When it disconnects, no sound. after soldering, everything works fine.

Hi,

Appreciate the direct "Ask Me" again.

The initial posting would still hold true, best would be:

• remove TR18;
• replace 2SC2069 with 2SC1969; and
  
• adjust L12, 13 & 14.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.