Super Tune?

[Duck Commander]

Anybody ever heard of this? Here about a month ago i aquired a stock Cobra 29 LTD Classic from an ole boy so i took to the local cb shop to get echo and a peak n tune dun to it and i told em to take his time and make it perform good so he told me he does this supertune to em that he can make a cobra 29 swing about 65-75 watts so im thinkin in the back of my head yeah rite so i told yeah go ahead and do it just to see what this Crackerhead could do well he tried to show me on his meter @ 13.8 volts it wuz DK 2 watts swingin 70-75 watts so i said cool ill try it out see how i like it so i unhook the ole Gen Lee and plug this in to talk on on the way home everybody says man that thing is loud and just flat sounds good so im thinkin this Cat may know what hes doin so i get home and hook it up to my power supply turn er on look at my meter an we dk 2 watts swingin BLEEPITY BLEEP BLEEPIN 18 watts but the radio is loud ive heard it from the other end with my Pop's talkin on it sounds real good. Even tho the radio sounds great in fact the best talkin soundin cobra ive ever had he still just flat lied to me in my opinion why must people come up with these gimicks to sale stuff when all i told em to begin with wuz i wanted echo and peak n tune and the radio to talk good n loud well he made it do it but he jacked me outa bout 50 bucks for this so called supertune. I got home and hooked it up and when i saw what it wuz doin on my meter i haulered for em and told em this radio is only showin to do 18 watts on my DOSY meter he told me well meters will do funny things im thinkin WTF

[THUMPER]

65-75 watts ?

not out of a singal finale radio not unless he put in a stinger board the most i have ever seen was swinging 20 watts

[38Special]

Man, what has he been smokin'?
Thumper is right on. You won't see more than 20, so 18 on your meter is realistic. But that's OK, if it's swingin' to 18, I'm sure it sounds real good. Sounds like he peaked and tuned it, but you didn't need the BS he fed ya!

[rayray1963]

Was this shop on I 20 in Masrhall, Tx. Cause I hear that guy all the time talking on the air bragging about his Super Tune job. A buddy at work fell for it and took his 93T to him, Well it took half a fire extinisher to put the fire out he started on his bench with my buudy's Galaxy, then he had the gaul to try and charge him 85.00 to fix it.

[bosshog]

sounds like your buddy should have charged him 85 for the embarrassment of letting that guy work on his radio. altho it is funny when a radio goes up in smoke, (as long as the radio tech is willing to replace it if he ruins it)

[milkshake]

Duck Commander-you have PM

[Duck Commander]

Naw this guy is in Mt.Vernon Tx. i have heard sum stories about that guy in Marshall tho i wouldn't figure he was still in bussiness he fried 1 of my buddies 148 GTL about 10 years ago he said he took it in there brand new still in the box and wanted a bunch a stuff dun to it when he came back thru to pick it he wrote the man a check and jus put it in the sleeper till he got down the road to truck stop and then he hooked it up and smoke boiled out that thing he called and stopped payment on the check he took it to another cb shop over in Louisianna i believe the guy opened it up and just started laughin he said it looked like somebody took a cuttin torch and a role a sauter to that thing.

[PA629]

I was gonna make a comment about crack being cheaper down South...but I won't.

[Duck Commander]

Don't know i hadn't ever had to buy any but i bet u can dat Crackerhead n find out apparently he smokes da good chit.

[Alabama Tick]

He couldn't do it with the stock final. He would need a hi power pill. And even then, he would need to do a serious retrofit or hack, including heatsink. I suppose that he could add a stinger or small amp, but again, you might have heat issues. If you wanted a low cost and effective method of swing that wattage, it would be far cheaper to get a small linear like those KL-60 or similar amps.

[BigBopper]

This is alot of work, and it won't get you that great wattage that he claims, but here it is::
Cobra 29 LTD:

Receive Boost: Locate pin 14 of the PLL chip, and the Positive (+) side of C-12. Install a 22k-220k ohm resistor between these two points. The smaller the value, the more the receive is boosted. Use CARE when soldering to the PLL chip! If desired, this mod may be wired through a switch.

Supertune: Replace the stock final with a 2SC1969 unit. Solder a jumper across D8 (this may cause receive distortion at high volumes, remove jumper if it does). Solder a 68pf cap across C62. Solder a 68pf cap across C59 if there is already a 33pf across it. If there isn't, use 100pf instead. Replace R 55 with a 10-15k resistor, and solder a 33-55 pf cap across that resistor. Replace R58 with a 4.7 ohm resistor. Set VR4 just a bit to the right of half-way open. If D11 or C3 have been removed, replace them. D11 is a simple small-signal swithcing diode like a 1n147, and C3 is just a 1uf electrolytic. If TR18 has been removed or cut, replace with a 2SA733. Spread Open L12 a tiny bit, and adjust L16 for best swing, using a loud, steady "aaaaaaah" sound into the mic (or if you have a function generator, set it up for 1khz at about 16mv output, and use that. MAKE SURE to use heat-sink compound (a very light coating is sufficient) when mounting the new final, and MAKE SURE the final mount screw is tight!

[Alabama Tick]

That might be a supertune, but there is no chance of geeting that kind of wattage from the 2SC1969. The max wattage rating for the 2SC1969 is about 14 watts or so. It would be an improvement over the stock final, but swinging more than 14 watts would shorten the life of the transistor. For the 65-75 watts he says, he would need a hi power pill, or stinger, which I said would need serious retofit. Anytime w=you deal with power that high, you need a heatsink.

[fireball894]

Well, if he were even able to do it, 75W swing from a 2W carrier will be overmodulated garbage.

2 swinging 18 on a whistle is actually about right....... if the whistle is at 18W, so to speak, your speech is probably around 10-12 W or so if youre not driving the crap out of the audio and distorting it. That makes for good LOUD clear audio.

If you have a 2W carrier, that is where you want to be. Even at what you think is a low PEP number, you can still drive this rig well above 100% modulation. 100% is 100%. Any more is distortion.

As a matter of fact, my Cobra 25 is set up to do about 3.5 swinging about 20 or so in Low, and 7 swinging about 23 in High, so the numbers for your radio sound about right to me. And that thing has some AUDIO, and all I run for a mic with it is an Astatic 636L, which is not even a power mike.

If you want to have a decent sounding 75W PEP, I'd suggest about 15-20 Watt dead key. Of course, you cant do this with your stock finals, but you could always go with a 2 pill amp and get that effect.

[Duck Commander]

o ive heard it from the other end my pop got in there on it while i was ridin n tha Yota it is a loud duckpluckin 29 and yes when i am talkin into it does like 12-13 watts and the whistle is where i got 18 watts but it sounds great loud plane as day crystal clear i run it for my base sense i sold my Galaxy 2517 bout 2 weeks ago and run a Road King 56 for a mike no complaints on the radio just complaint on the Crackerhead lyin to me.

[fireball894]

Yeah Duck, even though the radio seems to be doing what it's supposed to it still is a bunch of BS about that guy lying about the 75W swing. Just think about all the people that he told that lie to that didn't know enough about how AM works that believed him. Lying to your customers is definitely not cool..... someone brings a radio to them and trusts them, and thats what they get in return......... sounds like he needs beat over the head with his rigged wattmeter........

[Duck Commander]

Yeah it sucks bad but i shoulda known better than that but u never know had to see what the guy could do.

[fireball894]

Well, now you know, anyway. At least your radio still has a good peak job anyway. Thats what you were after to begin with, so no big thing. Still sucks about the dude lying.

[Duck Commander]

Yeah that is all i wuz complainin about not the peak n tune he actually did an excellent job there.

[Dx Surfer]

now thats some funny stuff right there 75 watts from a cobra 29 LOL roflmao you would have to do all kinds of retro fitting and put dual finals in that radio to get it to work that good at my friends shop in susuin ca we got em doing allmost 22 watts on a good tune with ear smashing audio and thats about it for that radio LOL !!!!!! 75watts HA HA HA HA HA HA

[Duck Commander]

Yeah that's what im sayin now he a silly CRACKERHEAD

[Wolf Man]

Wow I can't believe he would even try something like that. That's a definite customer killer right there. I mean the guy did a great job from what it sounds like... if he hadn't lied to you he probably would have had some repeat business spreading the word. Oh well.. that's what lying does.

[SAVAGESAM]

Does anybody Take a stock 29, hook it up, show the customer what it does stock. Then work there magic on it and show him again after? So he can see and hear the before and after effect. That's what I'd like.

[Punkin Head]

my local tech when I lived in GA did. he would take you in his shop and hook your stock radio to all kinds of different gadgets and say this is what your radio is doing now. then he would take the cover off and work his electronic magic and say now this is what your radio does and you would see same radio on same meters doing what it was doing. if you can find a good local tech to go to you should be able to get them to show you before and after.

[SAVAGESAM]

now that's some funny stuff right there 75 watts from a cobra 29 LOL roflmao you would have to do all kinds of retro fitting and put dual finals in that radio to get it to work that good at my friends shop in susuin ca we got em doing almost 22 watts on a good tune with ear smashing audio and that's about it for that radio LOL !!!!!! 75watts HA HA HA HA HA HA

Would your good friend be willing to show me before and after results all hooked up etc.? I wouldn't hesitate to drive a bit to get good reliable work done.