Copper Talk » Ask The Tech » Radio's Mobile » Archived Messages » Cobra 138 xlr talkback problem? « Previous Next »

Author Message
Top of pagePrevious messageNext messageBottom of page Link to this message

Barakuda318
Posted on Tuesday, March 12, 2002 - 3:07 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Hello everyone: I have a Cobra 138 xlr that I would like to put talkback in, but I have tried most of the talkback tricks and can't get it to work. One thing I do like about the radio is how the speaker mounts inside havn't ever seen one like that befor, anyway someone has also added channels in the radio by using the noise limiter switch and the cb/pa switch I would like to know how to get the radio back to performing as though it were just off the assembly line, no extra channels with the nois limmer working and the cb/pa working, power mods would be nice too, if anyone has any kind of print out about this radio I would love to get it thanx for any and all of your time.
73's
Barakuda318
Top of pagePrevious messageNext messageBottom of page Link to this message

307
Posted on Tuesday, March 12, 2002 - 6:17 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Install a .1 uF Mylar capacitor from pin 2 on the mic plug to IC4 , Pin 4..This should work...

307
Top of pagePrevious messageNext messageBottom of page Link to this message

Barakuda318
Posted on Tuesday, March 12, 2002 - 7:06 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Thanx tech 307 I'll try that and let you know, as for the other I'm not sure about it may have to send it to a shop to get that done with the extra channels taken out.thanx again
73's
Barakuda318

Add Your Message Here
Post:
Username: Posting Information:
This is a private posting area. Only registered users and moderators may post messages here.
Password:
Options: Enable HTML code in message
Automatically activate URLs in message
Action: