The Defpom Forum, for RadioMods, S&M Software and Music by The Defpom

Radio Make and Model: Cobra 29 PCB Number: PLL Number: Test gear available:vom scope other stuff Symptoms:shorted d23 replaced audio chip has pa working no rx in cb switch position What is working: pa What has been tried: Did it suddenly happen ?: radio appears to have been reverse wired Anything el...

Rick , could i change the xtal in the viagra b (blue ) board that i have and arrive in the 10m band at 28.3 or so? Thanks for all your help Matt.....

Whats a good source for the t1 transformer?

What is a good source for the 3 band boards and crystals?

My friend Russ has performed the mod to probably a dozen radios, He said that he forgot to remove the slug and while tuning, smoke . I am not a tech by any means so all of the help is greatly appreciated. Matt.......

Rick , I have built kit radios and other somewhat complicated circuits. This will be the first time to actually convert a cb. What xtal will I need and how much of the 10m band will it cover? I have not been able to find much on the internet about this conversion , Seems to be taboo or something. I ...

d8 wasnt jumped , I replaced it along with the 520 that also was damaged. I need the t1 for sure.

Thanks for the info Rick, Is it worth doing? Im a ham general class and long time cb enthusiast. Will i loose alot of power and recieve as noted in the above post?

will the built in freq meter work properly?

My friend did a rf520 mod but forgot to remove the l14 slug, smoked d8 and the t1 transformer. Where to get a transformer and what else should I look for that is possibly damaged . Thanks Matt.........

Can this radio be converted to 10 meter operation?