Copper Talk » Modifications » Radios » Cobra 29 recieve « Previous Next »

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Missie
Junior Member
Username: Missie

Post Number: 19
Registered: 10-2006
Posted on Wednesday, May 02, 2007 - 10:25 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

dose any know of a mod to help the recieve side of a cobra 29 LTD or clasic ? thanks
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Dale
Advanced Member
Username: Dale

Post Number: 827
Registered: 12-2002
Posted on Wednesday, May 02, 2007 - 10:16 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

texas star mod v makes a pretty good preamp
and would give your radio a good little boost
or could be used as a driver for that bigger box hehe.sorry i couldnt help it but thats what id do. theres a mod but im not sure exactly what it is without a little research.i do know theres a resistor mod that requires some soldering.
dale/a.k.a.hotrod
cef426
cvc#64
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Panda_bear
Junior Member
Username: Panda_bear

Post Number: 25
Registered: 4-2005
Posted on Monday, May 07, 2007 - 11:25 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

for the recieve boost locate pin 14 on the pll chip and the positive side of c-12 install a 22k thru 220k ohm resistor betwee these two points the smaller the value the more the recieve is boosted.i would wire it thru a switch so you can turn it off when strong stations are talking because a strong(like someone really close to u)signal coud overload the recive section.
Tripple 5 in da Mag
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Barakuda318
Intermediate Member
Username: Barakuda318

Post Number: 146
Registered: 2-2002
Posted on Wednesday, May 09, 2007 - 12:08 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

This is a great mod and does work well, but heed the advice of putting in a switch or variable pot, the first one I done, fell victim to the overload, and well lets just say that is now a parts radio, lol however the one I have now, is on a variable pot, and works right along with the rf gain, but of course allows for much more, varience, ..

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