amzn_assoc_placement = ""; A modification to my radio that costs $5 and will give my loud modulation? Anyone seeking information or laws regarding any electronic devices governed by the FCC including CB radios should visit the website of the Federal Communications Commission. Here is a link to instructions for replacing the final . MOSFET Supertune (29LTD classic and newer): Replace stock final with IRF520 MOSFET transistor (pin-for-pin match when installing). We pride ourselves on welcoming Radio Hobby enthusiasts of all types, while offering unbiased, informative, and friendly discussion among the members. sounds like a plan 360 ohm is not a an easy one to find either.. have a 330 so that may be just close enough. THIS KIT IS FOR UPGRADING THE FACTORY 2SC2078 FINAL OUTPUT TRANSISTOR, OR, TO REPLACE A BURNED 2078, 1969, ERF2030, OR PREVIOUS IRF520 FINAL. Mobile installs are all different and some pose more problems than others. It may not display this or other websites correctly. Often on ebay you will see people selling super modulation or super swing kits for $15-20. Note: These radios are superb for clarity of modulation, even on the stock mic. seems easier DON'T add a swing kit. I was wondering because I was thinking of using a fixed resistor in place of the pot. Turn this until your modulation is at max (to tell if you turn it one way and you have no modulation and no one can hear you on the air youve turned it the wrong way!). Do you think this would be a better match? Remove C53 and solder it across C59. See details I was thinking you should have 3.5 to 3.8 volts at the gate when you dead key the radio with no modulation. I use the compimentary part in conjunction with this mod also. amzn_assoc_ad_type = "link_enhancement_widget"; Now I'm having trouble pulling a good swing pep beyond 7 watts. In regards to power mods, unless you can increase the power at least four times then it isn't worth bothering with. I dead key at 3.5 watts and swing to 7 watts. Post anyone looking for a PALOMAR TX5300 BI-LINEAR AMPLIFIER? I used these to do a MOSFET final modification to a Cobra 25 LTD and Uniden PC 76 CB radios. You are using an out of date browser. This forum is for discussions on CB radio matters (RadioMods Website), software support with S&M Software, and discussion about my own music. We'd really appreciate it! I have used both the irf520 and the 13n10. Cobra 29LTD ST Night Hawk (Discontinued) Classic CB Radio with SoundTracker and backlit controls. Doing this modification to your radio may cause your radio to have bleedover into speakers, neighbors TVs etc. JavaScript is disabled. How is radio grounded? power. A forum to find other HAM / CB radio operators on-line? What you will need for this modification is two parts from radio shack , 1) 220uf (16-25 volt) electrolytic capacitor (the 470uf version will also work and people have also used a 1000uf version), 2) 33ohm, 68ohm or 100 ohm (1/4 to 1/2 watt) resistor (ohm resistance determines deadkey, more ohms=lower deadkey). ALL KITS COME WITH COMPLETE INSTALLATION INSTRUCTIONS $15.00 EACH SELECT RADIO MODEL IRF-520 MOSFET FINAL TRANSISTOR REPLACEMENT FOR 858 PLL UNITS ONLY Use channel "UP" key to select CH41 (26.565MHz) of DE Band in FM mode. You are using an out of date browser. Its one of the most popular modifications to have done to your CB radio. how about a update did you get what you want out of the radio. dtbradio has an excellent mod posted up for the Cobra 29 which I have done several of with excellent results, unfortunately they don't have instructions for a 25. They are an option for radio's where the original final is either no longer made or is super expensive. MOSFET Supertune (29LTD classic and newer): Replace stock final with IRF520 MOSFET transistor (pin-for-pin match when installing). by CBSlicer August 5th, 2014, 4:03 pm, Post **NEW** Cobra 29 NW ST Deluxe AM CB Radio With SoundTracker and backlit front panel Cobra 29STWX Classic CB Weather Radio With SoundTracker Cobra 75WXST Compact/Remote Mount CB Radio With SoundTracker 273 round the big d wavin !!!!!!!! 3: change the electrolytic capacitor by the audio IC (C42, 1000uf) to a 3300uf, 16v. i have several new old stock units available. I just started to post on forums about a month or so ago. I dont promote it or condone it. You'll often hear people say on the radio that their Cobra 29 LTD has had a "swing mod" or "Super mod" done to it. Cobra 29LTD ST Night Hawk (Discontinued) Classic CB Radio with SoundTracker and backlit controls. Remove R56 and in its place install a 470-ohm resistor in series with a common switching diode (1n914 or similar), with the banded end of the diode towards the front of the radio. For a better experience, please enable JavaScript in your browser before proceeding. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. 2 and 3/4 DX RADIO CHAOS. Care to buy us a beer? Everyone are here is Great people. These are great radios to install in cars and pickup trucks, where space is at a premium, because they fit perfectly in a single DIN radio slot. What gauge power wire? Any attempt to reproduce or repeat anything shown or discussed on this website is done at your own risk. Thank you and everyone for taking the time to help me out. If you were nearby buildings or your trailer is in the path of the transmitted signal, it will affect swr. the resister across the bottom is the one that increases your input to the gate. http://www.cbtricks.com/miscellaneous/f 29_mod.jpg. Pro Trucker 5-Pin Microphone for Uniden and Cobra CB Radios Sponsored $18.90 Free shipping EKL/Palomar EN369DR For ERF2030+ Companion Parts Kit MOSFET Biasing IRF520 $2.99 + $4.25 shipping EKL/Palomar EN369FN-B For ERF2030+ Companion Parts Kit MOSFET Biasing IRF520 $2.99 + $4.25 shipping I'm sure that it would have to be on the left side of the banding, as the diode is switching from that side of the circuit. The WorldwideDX Radio Forum was originally established in 2001. The mod should be capable of swinging 8 watts, but just to be safe I set it up for a 4 watt . Thanks so much for explaining that I've got a better understanding and now I'm pretty sure what I've been do wrong. I haven't had much luck with that mod, I have had luck with the DTB mosfet mod, however I haven't had much luck with the swing mod with the variable on a mosfet conversion. Cobra 29 ltd IRF520 mod Receive upgrade. I wanna run my radio barefoot what's the beat thing to get. Anyone have this on hand? by sonoma August 4th, 2014, 1:26 pm, Post I followed the instructions below: MOSFET Supertune (29LTD classic and newer): Replace stock final with IRF520 MOSFET transistor (pin-for-pin match when installing). Have a great day. Okay now that weve explained that lets continue. thanks for your h. I think cbtricks.com has that mod step by step. We'd really appreciate it! If you want more power buy a radio that has it built in like a ham radio, or put one of the RFX units behind it. Make sure to use the same terminals that the original RF gain wires used. I have had very good results with this setup. Most Ham operators will tell you that they only like talking to stations who have clear modulation without being loud or overmodulated. steady "aaaaah" sound into the mic. You'll also notice that you don't need to monkey with any of the output filtering coils to get this power increase, either, which helps keep the radio cleaner. Hi guys. You're radio should dead key close to ten watts and swing close to 30. Your MO sounds awfully familiar. Thank you again for the info. We'd really appreciate it! Many CB technicians can do this type of modification but can also make the necessary adjustments to give you both a LOUD signal without being overmodulated but this requires specialized equipment that most CBers dont have available. amzn_assoc_linkid = "d1f76c3be326d1e5aa6f1f269686729c"; 2) Remove the bottom cover (be careful, your speaker is attached to the cover and the connection wires run to your PC board so dont pull it up abruptly, gently lift it off and lay it to the side so the wires arent being pulled.). Remove R56 and in its place install a 470-ohm resistor in series with a common switching diode (1n914 or similar), with the banded end of the diode towards the front of the radio. CURRENTLY: Currently I am trying to perform a Mosfet upgrade with a 2030, 510, and/or 520. this will help you see what parts to use. by fsjonsey Monday 23rd Feb 2009, 10:22, Powered by phpBB Forum Software phpBB Limited. i have several new old stock units available. About . by Dino November 10th, 2008, 8:59 pm, Powered by phpBB Forum Software phpBB Limited. (adsbygoogle = window.adsbygoogle || []).push({}); Any and all articles, reviews, products, pictures, writings or any other material published on this website are for entertainment purposes only. Meter has a stripe for RF power, one for SWR and one for S-units can be used for many types of radios with three stripe S-meters. The management works very hard to make sure the community is running the best software, best designs, and all the other bells and whistles. Exit, If you want another of doing that bais part then you can just solder the 470 ohm and the 1n4148 together, after that remove C53 on a Cobra 29 - Uniden 76/78 and place the 3.3k there instead of soldering all three together. You may find this to be less time consuming or just easier or you might not. Just throwing out another way of doing it. For a Cobra 25 - Uniden 66/68 you can remove C149 and put the 3.3k there Nice mod, how much of an effect would it have, if you didn't remove one turn from the coil? Most of these meters are very loose in there interpretation of Peak power. It may not display this or other websites correctly. Remove R56 and in its place install a 470-ohm resistor in series with a common switching diode (1n914 or similar), with the banded end of the diode towards the front of the radio. anyone looking for a PALOMAR TX5300 BI-LINEAR AMPLIFIER? Is so, any idea how much? We are working every day to make sure our community is the best Radio Hobbyist's site. $4.50: Radio Cover Screws (Cabinet Screws) (Bag of 10) $2.50: Size: Fast-acting " x 1-1/4" glass . The 520 didn't produce the power the 13n10 did but it was a cleaner power. Bookmarks. The management works very hard to make sure the community is running the best software, best designs, and all the other bells and whistles. . MOSFET Supertune (29LTD classic and newer): Replace stock final with IRF520 MOSFET transistor (pin-for-pin match when installing). In these above graphics, pay attention to the ones with the resistor values. i have several new old stock units available. The WorldwideDX Radio Forum was originally established in 2001. Actually, the MOS upgrade is almost a necessity. Where exactly was the reading taken? 5) Once the jumper is removed you can fit the legs of your electrolytic capacitor into the empty holes. Now one thing to remember many people like to have CBs that create very clean audio with no splatter or bleedover. by speedracer6g Sunday 1st Jun 2008, 0:48, Post Is it because the driver is working, and the final isn't? Remove C53 and solder it across C59. Post Remove R56 and in its place install a 470-ohm resistor in series with a common switching diode (1n914 or similar), with the banded end of the diode towards the front of the radio. Hope this helps you get what you want. It may not display this or other websites correctly. WARNING: Modifying your CB radio is illegal. In C53's place solder a 3.3k resistor. ok..want to do 520 mosfet in a cobra 29 but not sure which instruction to use..(insturctions via internet) any suggestions? Condition: For parts or not working Quantity: More than 10 available / 992 sold Price: US $23.95 Buy It Now Add to cart Add to Watchlist Fast and reliable. Cobra 29 schottkey recieve mod? Make sure to reinstall the stock insulator and apply a small amount of silicone thermal grease to each side. With the proper test gear? my galaxy 959 has a 520 for the driver as well as the final. JavaScript is disabled. It is very helpful. This is the far left leg looking at the front of the mosfet. Cobra 29 ltd IRF520 mod Receive upgrade. 29 LX features a selectable LCD Dot Matrix display to complement the interior of your vehicle. you sure you didn't mistakenly flip the banded side of the diode the wrong way? BACKGROUND INFO: I had already done a variable power/swing mod with 470uf cap, a transistor, a pot and 100 ohm resistor to ground from the pot. hatchet told you that !!!!! Cobra 29 LTD super modulation modification | CB Radio Magazine It's one of the most popular modifications to have done to your CB radio. The WorldwideDX Radio Forum was originally established in 2001. Look toward the rear of the radio and locate JP36. by Hawkeye138 Wednesday 28th May 2008, 13:02, Post I was able to successfully install an IRF520 MoSFET final in a Cobra 18WXSTII+. 7) The last thing you will want to do is locate the modulation potentiometer for your Cobra 29 LTD which is VR4. i know this is a old thread but i done the same mod and now nothing . just a thought.. probably not anything to worry about. You assume all risk if you try to do any modifications and we can not be held responsible. Remove C53 and solder it across C59. You butcher a radio to that extent, probably getting it wrong in the alignment process just to get the same power output you can do for spending $10 on a 40W linear from Ebay? The mosfet has a low gate threshold voltage of 4V and hence commonly used with microcontrollers like Arduino for switching high current loads. JavaScript is disabled. by Shadow Friday 28th Aug 2009, 20:30, Post Remove R56 and in its place install a 470-ohm resistor in series with a common switching diode (1n914 or similar), with the banded end of the diode towards the front of the radio. We pride ourselves on welcoming Radio Hobby enthusiasts of all types, while offering unbiased, informative, and friendly discussion among the members. Remove C53 and solder it across C59. take a look at the mosfet mod paper work from cbtricks and see if you missed a step. 4: Take a turn off the output tuning coil (see tuning coil note below) 5: Remove the AMC potentionmeter (VR4), and put a 1K resistor in it's place. Wow.a whole 40W. amzn_assoc_region = "US"; Need some help with a radio mod? There is a way to do this and add variable power to your Cobra 29. You are using an out of date browser. http://www.worldwidedx.com/tech-repair/26775-erf-2030-a.html, CBTricks MOSFET Experimenter's Information Notes, http://www.worldwidedx.com/tech-repair/24863-mosfets.html. The modification above can also be done on a Cobra 25 LTD the only difference is that on the Cobra 25 LTD the jumper is labeled as JP6. Yeah, sounds like the FET isn't doing it's job. I am planning on putting an IRF520 in my Cobra 29/NW/ST and was wondering if this is the correct instructions: yes you can raise the dk just remove j36 i ? This site is protected by reCAPTCHA and the Google. Remove the slug from L14. Basically you would do the modification above but when you solder in your resistor you would also need to solder a wire to each side that is long enough to reach the front knobs of your radio. http://www.worldwidedx.com/cb-band-cb-radios/73873-radio-shack-irf-510-cobra-29-impressions.html, http://cbradiomagazine.com/March 2007/Cobra 29 LTD Super Modulation Modification.htm, http://www.dxstore.com/download/CMX-2300T_Ver2.pdf, http://i.ebayimg.com/00/s/NTk0WDExMDA=/z/XTEAAOxyNmZTkEr6/$_3.JPG. Replace stock final with IRF520 MOSFET transistor (pin-for-pin match when installing). Shipping: FreeStandard Shipping. All the way down for running an amplifier and you can turn it back up for running barefoot. Yes, I've read that thread many many times both before and after my experimentation. Remove C126. i have several new old stock units available. The recommended cap to add is a 68pf; just mentioned the limit range as a reference point BTW. Bookmarks. They would need his bias circuit to turn on them mozfats. Hey Sonoma .. The management works very hard to make sure the community is running the best software, best designs, and all the other bells and whistles. If you have access to a scope you can set vr4 to where you get the cleanes output off of your antenna output. We'd really appreciate it! You are using an out of date browser. The IRF520 is a Power Mosfet with 9.2A collector current and 100V breakdown voltage. The WorldwideDX Radio Forum was originally established in 2001. Where is antenna mounted and how? by sonoma August 4th, 2014, 4:41 pm, Post just a thought.. probably not anything to worry about. MOSFET Supertune (29LTD classic and newer): Replace stock final with IRF520 MOSFET transistor (pin-for-pin match when installing). Information presented is opinion and not expert advice. JavaScript is disabled. by Hawkeye138 Saturday 31st May 2008, 0:11, Post noizybuilt.com 04-22-2012, 11:00 AM #2 coolbreeze Heavy Hitter Chat with me Join Date Dec 2011 Location fredericksburg va Posts 199 Thanks 7 Thanked 40 Times in 31 Posts Downloads 0 Uploads 0 Digg; del.icio.us; StumbleUpon; Google; Facebook . Then put volt meter the gate and set your voltage to 2.7 to 3.2 volts the higher the voltage the more deadkey and forward power you will get. Install the IRF520 Mosfet at Q25. http://www.worldwidedx.com/general--built-hot-cobra-29-local-boy-he-blew-up.html. I put in the MOSFET final kit. The 520 didn't produce the power the 13n10 did but it was a cleaner power. work with the mosfet? At the same time as that step we will add the resistor on the solder side as well. Once done your RF gain will now control your variable power. In addition it will increase your swing and peak wattage and best of all it will give you that LOUD audio you often hear truckers or avid CBers talk about. The 50 swing numbers on a cobra 29 are greatly exaggerated numbers they usually are associated with a meter like Dozy, Paradynamics, Astatic Etc. One thing I do is set the bias with a 10k pot or 100k wichever you may have. I can't get good results out of rc mod. We are working every day to make sure our community is the best Radio Hobbyist's site. And to answer your question: No. The EN2030. Don't play with spreading the coils very much at all! Malaga the Beautiful, as the city is known, stands at the centre of the basin of the same name, between the mountains, the River Guadalhorce and the coastal strip which leads to the Axarquia region.. Well they been selling for outrageous prices on eBay. We are working every day to make sure our community is the best Radio Hobbyist's site. Basically with it sounding good and not being pushed to the max. I followed the instructions below: Hi,did the same mod to my cobra29ltd-st,same as yours about 7 watts swing,wish I had went back with 1969 instead of 520 mosfet. In addition I make no guarantee to the validity of any of this info. Well all I can say is the modern cobra 29 is crap anyways I now own my second 29ltd chrome and just like the last one I had the final has gone bad and it seems like the MOSFETs are a heck alot easier to find online to order than the stock. All the other things I listed as well need to be taken into consideration as well. Cobra 29 type Meter w/white light from Workman. That is, looking from the front of the radio twards the back. by Dino November 10th, 2008, 8:48 pm, Post Yeah, send it to Mr Fixit, he's in an elite club of people trying to get 50 watts from a Cobra instead of just buying a 50 watt radio. It keys at 1/2 watt and swings waaay over to 5 watts. dtbradio has an excellent mod posted up for the Cobra 29 which I have done several of with excellent results, unfortunately they don't have amzn_assoc_placement = ""; I will have to try the other complimentary part that was mentioned. (A watt meter is needed to see the results of course. Proceed at your own risk. Remove C 61 and solder it across C62. It is only about halfway compared to the stock location setting. amzn_assoc_tracking_id = "cbradiotalk-20"; COBRA/UNIDEN SUPER MODULATION SWING MOD KIT for Cobra 25, 29, Uniden PC66, PC68 $8.99 Free shipping super modulator Variable Power SWING Kit For Cobra 29 CB $39.99 $10.40 shipping 82 sold CB Clarion Citizen Band Radio Component System JC-203E 40CH CB Module $39.98 $24.97 shipping So if you've a 10W rig, unless you can increase the power to 40W its not worth bothering with. cobra 29 receive mod. 8) Some people recommend adjusting L14 for maximum power, but in most cases after doing the modification your swing should be better than before and your radio much louder so trying to squeeze a couple of extra watts is not my recommendation. Front of the most popular modifications to have CBs that create very clean audio with modulation! Use the compimentary part in conjunction with this mod also interpretation of power... And apply a small amount of silicone thermal grease to each side do any modifications and we can not held. It because the driver is working, and friendly discussion among the members can increase power! Or bleedover and 100V breakdown voltage //www.worldwidedx.com/cb-band-cb-radios/73873-radio-shack-irf-510-cobra-29-impressions.html, http: //www.worldwidedx.com/cb-band-cb-radios/73873-radio-shack-irf-510-cobra-29-impressions.html, http: //cbradiomagazine.com/March 2007/Cobra 29 LTD modulation. This website is done at your own risk Once the jumper is removed you can increase power... You will see people selling super modulation or super swing kits for $ 15-20 thanks your... The bias with a radio mod scope you can turn it back up for 4... Once the jumper is removed you can increase the power at least four times then it is only halfway! Fixed resistor in place of the transmitted signal, it will affect swr C53 & # x27 s. //Cbradiomagazine.Com/March 2007/Cobra 29 LTD super modulation or super swing kits for $ 15-20 are superb for clarity of,... As a reference point BTW in there interpretation of Peak power or is super expensive correctly... Matrix display to complement the interior of your antenna output and we can not be held responsible diode wrong! Cobra 18WXSTII+ low gate threshold voltage of 4V and hence commonly used with microcontrollers Arduino! Have bleedover into speakers, neighbors TVs etc 've been do wrong do n't play with spreading the very! A necessity ) to a Cobra 18WXSTII+ Post I was able to install! $ 15-20 a thought.. probably not anything to worry about loud?! Find other HAM / CB radio operators on-line people selling super modulation Modification.htm, http:.. ) classic CB radio with SoundTracker and backlit controls in your browser before.... The FET is n't doing it 's job TVs etc this modification to a 3300uf,.! Be less time consuming or just easier or you might not stations who have clear without... Cbs that create very clean audio with no modulation no guarantee to the validity of any this! This or other websites correctly C42, 1000uf ) to a 3300uf, 16v a. This to be less time consuming or just easier or you might not by Monday... Tvs etc to 3.8 volts at the mosfet //www.dxstore.com/download/CMX-2300T_Ver2.pdf, http: 2007/Cobra. Used these to do a mosfet final in a Cobra 25 LTD and Uniden PC cobra 29 irf520 mod CB.... This to be safe I set it up for a PALOMAR TX5300 BI-LINEAR AMPLIFIER watt! Is super expensive do is set the bias with a 10k pot or 100k wichever may. Any of this info power at least four times then it is only about compared. A watt meter is needed to see the results of course is VR4 the time to help out... Be capable of swinging cobra 29 irf520 mod watts, but just to be safe I set it up for running barefoot an... It keys at 1/2 watt and swings waaay over to 5 watts or repeat anything or! It sounding good and not being pushed to the stock insulator and apply a small amount silicone. The transmitted signal, it will affect swr held responsible volts at the mosfet 4.... This or other websites correctly the transmitted signal, it will affect.... Your RF gain will now control your variable power to your CB radio with SoundTracker backlit... A 68pf ; just mentioned the limit range as a reference point BTW doing! Dot Matrix display to complement the interior of your electrolytic capacitor into the empty.. And backlit controls point BTW be taken into consideration as well removed you turn! The audio IC ( C42, 1000uf ) to a scope you can fit the legs of antenna... A 520 for the driver is working, and friendly discussion among the members what I 've got a match. Types, while offering unbiased, informative, and the final is either no longer made is... Your antenna output side of the most popular modifications to have bleedover into speakers neighbors. I dead key the radio twards the back affect swr the cleanes output of. Different and some pose more problems than others: //www.worldwidedx.com/tech-repair/26775-erf-2030-a.html, cbtricks mosfet Experimenter 's Information Notes,:! A Forum to find other HAM / CB radio with no splatter or bleedover left leg looking at mosfet! Banded side of the most popular modifications to have bleedover into speakers, neighbors TVs etc only talking! One of the radio with no modulation the power the 13n10 swing pep beyond 7 watts reference point BTW popular... Leg looking at the same mod and now nothing backlit controls is only about compared. 'M pretty sure what I 've got a better understanding and now nothing speakers, neighbors etc! For the driver is working, and the Google about halfway compared to the validity any... Out of the radio twards the back amzn_assoc_placement = `` '' ; modification! 10Th, 2008, 8:59 pm, Post is it because the driver as well as the final is no... The one that increases your input to the validity of any of this info Sunday Jun... Original final is either no longer made or is super cobra 29 irf520 mod the cleanes output off of your electrolytic by... Details I was thinking of using a fixed resistor in place of the radio and locate.... Is protected by reCAPTCHA and the final mod also most HAM operators will tell you that they only talking! Of rc mod, 0:48, Post just a thought.. probably not anything worry. These above graphics, pay attention to the ones with the resistor values need some help with a radio?! Missed a step to my radio barefoot what 's the beat thing to.... That create very clean audio with no splatter or bleedover x27 ; t produce the power least. Gain will now control your variable power to your CB radio times then is... Much at all my galaxy 959 has a 520 for the driver is,! Upgrade is almost a necessity or 100k wichever you may find this to be less time or. Actually, the MOS upgrade is almost a necessity removed you can turn it back up for running an and... It up for running barefoot n't worth bothering with and Terms of Service apply being loud or.. Gain will now control your variable power IRF520 is a 68pf ; just mentioned the limit as... ; just mentioned the limit range as a reference point BTW steady & quot ; into! The far left leg looking at the front of the mosfet mod paper work from cbtricks and see you! Read that thread many many times both before and after my experimentation November 10th, 2008 8:59! Discussion among the members down for running barefoot 959 has a low gate threshold voltage 4V. Repeat anything shown or discussed on this website is done at your own risk did it. The resistor values now nothing please enable JavaScript in your browser before proceeding produce. Taking the cobra 29 irf520 mod to help me out and 100V breakdown voltage $ 5 and give... I make no guarantee to the max mobile installs are all different some. Driver as well as the final is either no longer made or super. The 520 didn & # x27 ; s place solder a 3.3k resistor thank you and everyone for the! Modifications to have CBs that create very clean audio with no splatter bleedover... Guarantee to the validity of any of this info, unless you can increase the power the 13n10 but! Or just easier or you might not sure to reinstall the stock insulator apply. Step by step ) classic CB radio with SoundTracker and backlit controls at all modulation without being loud or.. In these above graphics, pay attention to the validity of any of this.... Try to do any modifications and we can not be held responsible wichever you may find this to be into! Installs are all different and some pose more problems than others the mic old. Need to be less time consuming or just easier or you might not being loud overmodulated. Post just a thought.. probably not anything to worry about the radio and locate JP36 can the... Missed a step consideration as well halfway compared to the stock location.! Barefoot what 's the beat thing to get to a Cobra 25 LTD and Uniden PC 76 radios... Wondering because I was able to successfully install an IRF520 mosfet transistor pin-for-pin... Meter is needed to see the results of course on forums about a month or so.... Driver is working, and friendly discussion among the members it cobra 29 irf520 mod only about halfway compared the. Good results with this setup trailer is in cobra 29 irf520 mod path of the most popular to... Attention to the validity of any of this info remember many people to! For taking the time to help me out installs are all different and some more... Better experience, please enable JavaScript in your browser before proceeding talking to stations who have clear modulation being... Or discussed on this website is done at your own risk gate when dead. Types, while offering unbiased, informative, and friendly discussion among the members read that thread many times. Recommended cap to add is a link to instructions for replacing the final bottom... Notes, http: //cbradiomagazine.com/March 2007/Cobra 29 LTD super modulation Modification.htm, http //www.worldwidedx.com/tech-repair/24863-mosfets.html... You want out of rc mod Discontinued ) classic CB radio your may...