Magnum 257 - talkback

Smitty · Post by **Smitty** » Saturday 8th Mar 2008, 4:20

Not a "CB Radio" by any means, but this is the only place I can find to put this, lol, so here goes.

Anybody know of a way to ad talkback to a Magnum 257, internally?

BTW, hello everyone, some of you allready know me

Smitty · Post by **Smitty** » Saturday 15th Mar 2008, 5:20

I sure figured someone has done this before. I guess if I were to accomplish it, I'd be the first

Would I tell my secret?

marveylus22 · Post by **marveylus22** » Saturday 15th Mar 2008, 14:00

Its not really a secret. It can be done. Good luck.

Smitty · Post by **Smitty** » Saturday 15th Mar 2008, 14:32

lol....come on man, I'm sure it can be done, but I need to know how, lol.

I been half tempted to buy one of those UTB-1 talkback kits and put in it, but I don't want that thing floating around in there.

Marv......do you know how? I'm up for suggestions

Smitty · Post by **Smitty** » Friday 21st Mar 2008, 14:21

I didn't think it could be done.

BozoRadio · Post by **BozoRadio** » Monday 7th Apr 2008, 11:38

Looking at the schematic, pin 2 of the mike plug grounds the negative side of the speaker, have you tried a resistor (100 ohms or less) from speaker ground (at the external speaker jack) to ground?

Smitty · Post by **Smitty** » Saturday 12th Apr 2008, 14:35

BozoRadio wrote:Looking at the schematic, pin 2 of the mike plug grounds the negative side of the speaker, have you tried a resistor (100 ohms or less) from speaker ground (at the external speaker jack) to ground?

Thanks Bozo, I've tried both of those ways.....no success to either one.