| Author |
Message |
    
Bullet
Intermediate Member
Username: Bullet
Post Number: 303
Registered: 7-2003
| | Posted on Tuesday, April 06, 2004 - 6:45 pm: | 
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hi guys,
im normally a 2950 man but i got a good deal on a new in the box cobra 29 so i thought id try it out.
i also got a deal on a texas star 667v and thought id ask you fellas what your ideas, and sugestions are on this combination.
this is going in my truck and on a wilson 5000 trucker "magnet mount". thinking about going to a body mount instead. what do you think.
p.s
also looking at the d1o4 hand mics for this radio.
thanks and all thoughts welcome.
bullet
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Pp1616
Member
Username: Pp1616
Post Number: 89
Registered: 2-2004
| | Posted on Wednesday, April 07, 2004 - 4:45 pm: |
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sounds good to me bullet... jsut make sure u have a good ground on that antenna!!!!!!!!!!! |
Tech8541
Moderator
Username: Tech8541
Post Number: 159
Registered: 12-2003
| | Posted on Wednesday, April 07, 2004 - 8:38 pm: |
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do the jp36 modification (set for 2w carrier or slightly less) and that setup will sound and work very well. |
Bullet
Intermediate Member
Username: Bullet
Post Number: 305
Registered: 7-2003
| | Posted on Sunday, April 11, 2004 - 6:33 pm: |
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richard,
youll have to clue me in on the jp36 mod?
im game how's it go? |
Tech8541
Moderator
Username: Tech8541
Post Number: 161
Registered: 12-2003
| | Posted on Sunday, April 11, 2004 - 11:27 pm: |
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find jp36 (a metal jumper) at the back of the radio near the final and driver. on the pcb side of the board add a 100-220uf electrolytic cap where the metal jumper used to be. on the foil side of the board add a 80-100ohm 1w resistor where the metal jumper used to be. this will give you a 1-1.5w carrier and plenty of swing to 'modulate' the 667.
oh yeah, the negative side of the cap will point toward the back of the radio. i also recommend using a 25v or larger cap.
and i'm calling it jp36, but i may be wrong. i have done so many that i am not sure of the actual board #, i just go to the location and do it. if i am wrong, i'm sure someone will correct me. if not i'll try to double check it at the shop tomorrow.
you can also get creative and disable the pa/cb, ch9, etc switch and then use one of them for a high/low power switch. just rewire the switch so that in one position it is a dead short across jp36(just like the metal clip that was there from the factory) and this will be high power. when the switch is in the 'open' postion low power will be engaged. great for when you are not running the amp.
you can do a search on the net that will give you the same info with some added steps and parts to substitute. i do not suggest doing anything more than listed above as the other steps increase distortion and harmonics. some steps also overdrive the final stage causing it to become unreliable with anything but a perfect swr. |
Bullet
Intermediate Member
Username: Bullet
Post Number: 306
Registered: 7-2003
| | Posted on Tuesday, April 13, 2004 - 5:12 pm: |
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thanks alot richard
you are the man! |
Cm3885
Intermediate Member
Username: Cm3885
Post Number: 347
Registered: 12-2003
| | Posted on Wednesday, April 14, 2004 - 2:05 pm: |
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Man! A 29 run into a 667? Ill bet that will be loud! |
Bullet
Intermediate Member
Username: Bullet
Post Number: 314
Registered: 7-2003
| | Posted on Thursday, April 15, 2004 - 6:21 pm: |
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it would be if the amp worked....
got it from ebay, off of a fella that goes by cobra254.
it aint even the same amp in the auction. he sent me a junk amp.
anyone work on these things?
ill be needing it fixed as im sure he wont make good on it.  |
