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Cobra 2000 GTL ideas...

Cable Guy

Packaged by weight, some settling may occur.
Dec 29, 2010
413
347
73
West Tennessee
A friend gave me a non-working radio, although in pretty good condition, the issues were a bad capacitor array on the program pins, a broken trace on one of the 7 segment displays, pin rot on the pll from corrosive glue, stuck meters, various blown bulbs and a missing top chassis shield.

So far, I repaired the array with individual ceramics, replaced the factory pll with a mb8719 and socket, repaired the trace on the channel display, cleaned the main board and recapped the whole radio with a Klondike Mike kit. I will try to free the meters and install LEDs all over, but I have no idea what to do about the shield. Also, I need to do the service bulletin for the FC, as this radio was born in 1981, per the stock pll markings.

I already have a stock 2000 on the shelf, so I was thinking of going overboard with this one. I have been playing with those rm stinger boards, figured out how to make them perform great on an am only rig, so I was thinking of putting one inside this radio and see if I can make it perform well on sideband. There appears to be enough clearance under the chassis, below the power supply, for both the stinger and a shield. Now, I know the puny stock power supply won't carry the stinger, so aside from just running it on the DC plug, was thinking of replacing the power supply altogether and adding a micro fan or two. I have a few hp server power supplies so I could probably retrofit one inside.

I know, an exterior amp solution would be better and easier and will probably be a chore getting the stinger to cooperate, and a stock 2000 in good condition would probably be worth more if it was not modded so much. I don't care.

Any ideas or comments? Has anyone successfully put a stinger inside and got good results on sideband? Is it sacrilege to mod this radio in that way? I may just leave it as is, if I could be convinced.

Thanks,
Greg
 

I didn't think that the stinger could do SSB?
I have read conflicting accounts, some say yay, some say nay. Someone on another forum said they had to re-bias it or it won't work well. That's why I wanted to see if anyone had successfully done it. I have read bad reviews of that board even on am, but that was not my experience, as long as modulation is kept at or below 100% and the radio output is tuned to what the board input expects.
 
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I think I talked myself out of installing another power supply. I could wire just the stinger to the DC plug, using an external supply just for the stinger, as I always have an ext. supply running. Still undecided.
 

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