Cobra 21 GTL a little insight please

[sandpiperx]

Picked it up for $20. it is in perfect condition. I have heard that these little mobiles can be tweaked to talk.. Just wanted to hear any thoughts on this. Have a great day....

 

[Chop]

find VR5 and turn it all the way up. then, back it off just a bit and then run a 2018 mic. you should be good to go.

 

[sandpiperx]

thank you much for the info. what will this accomplish? I will crack it open this week and start playing with it..
Mark
and

Picked it up for $20. it is in perfect condition. I have heard that these little mobiles can be tweaked to talk.. Just wanted to hear any thoughts on this. Have a great day....

 

[cbradiomagazine.com]

They can talk very well - you can easily do the resistor/cap modification to them same as a 25/29 and can add the poor man's talkback if you choose to do so.

Start by adjusting up the modulation poteniometer as suggested and see what you think. Adding a 2018 or 452 power mike can give them a good sound as well.

 

[wcsd106]

The 21 is a 25 without all the added bells and whistles from the factory.. The power mods, talkback, etc are all the same as the 25.

You've gotten a good little radio, I'd give it a solid tune up and have fun.

 

[Iceburgh]

Had a few of these and they are nice radios. If you want to stay on a tight budget and make this radio scream, you can replace the final with a MRF262 (with legs swapped) and then buy a cheap ProComm power mic ($13.00). Then disable the modulation limiter. Keep the power mic at 4 for 100% modulation.

 

[loosecannon]

isn't the MRF262 designed for VHF service?
i have never heard of this transistor being used in a CB radio before.

can you confirm that you have done this and it works?

also, i believe they are not made anymore and cost a lot to get.

My suggestion would be to go with a mosfet final replacement since it's easy to do and really cheap.
LC