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Cobra 2000 gtl mods?
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Cobra 2000 gtl mods?
Use With Any Crystal Switch To Add HI & LO 40 Channel Bandsebay Nov 14, 2020 Symptom: SSB has working receive while AM is measurably low receive. Cobra 2000 GTL Schematic Jul 16, 2012. You end up with variable power on the SWR CAL knob, but don't loose the function of the SWR bridge. The Cobra 2000 GTL citizen's band base station radio demonstrates the epitome of contemporary CB base station design. On the Cobra 2000gtl you will find a MB8734 pll replace it with a MB8719 PLL. 1 MB) Service manual (20. With the Cobra 2000 GTL folks love to mod them up and change the meter lights, led display. Works best on unmodified radios. the power switch in the 2000GTL switches ground and should not have any voltage present on the switch terminals. Opens in a new window or tab $5 Buy It Now +$5 Free returns. Cobra 2000 GTL is displaying the wrong frequency. Cobra 2000 GTL Meter (Mod or RF PWR)- Generic - Black needle (#285654343108) a***r (322) - Feedback left by buyer Verified purchase. The WorldwideDX Radio Forum was originally established in 2001. Opens in a new window or tab $40 Buy It Now +$6 Free returns. RADIO MODIFICATIONS Frequency Conversion Channel. Hi jon here im looking for an open clarifier mod for a cobra 2000 that works seems the ones on the net dont work,does anyone have a step by step mod poss with pics that works,ive tried several on the net without the way i want it,thanks jonemail is skull1041@yahoo Reply Member. Cobra 2000 GTL / Madison Owners Group ·4K members About this group. CB Radio Modifications. Cb Radio Schematics. When using pin 13 to get channels 41-44 no bridge resistor is required. The channel selector knob shows channe;s 41-100 on the uppers, and -01 to -60 on the lowers. Direct inject on Uniden PC76xl 2. change C46 to a replace the 2SC1419 (or 1135) in the power supply with a 2N6487, or NTE152. 3258MHz in them "You really just need 28500 for voice, the lower part of the band is CW. Now, some five decades after the legendary 21-year-old super car architect and. Go Back To The Modifications Page. Cobra 2000 GTL new prices were in the $300 range, however the used market seems to have retained high. 815 I have seen on other 8719 radios. This starts out as a "what's wrong with this picture" sort of story. Jan 20, 2016 · Jan 20, 2016 It's common on the 2000's to have low SSB output, most radios after a good alignment will only produce about 16W or so PEP on SSB. But at the cost of where the clarifier gets centered. 1,993 Feb 4, 2014 The Cobra 2000 & Uniden Madison radio's were never really intended to be big swingers. Especially if you are going to use a D104 power mic - or equivalent. (Uniden Grant XL, Uniden Madison, Cobra 148/2000 GTL, Teaberry Stalker 20 Export, Texas Ranger TR296 etc. Hello I have a Cobra 2000 GTL that has the 6 position switch channel mod to the MB8719 I havent really used this radio much it has been packed away. Well I tried it today and it works It will have feedback if you run a powermic and it turned up high or you get too close to the radio. It is recommended you replace X3 (11. That's right in line as far as proper Cobra 2000 performance as well. Weak receive in all modes. The original PLL was. Cut Trace on pin 14 of PLL and place 4 Next, solder the anode end of a 1N4148 diode to pin 11 of PLL. Do what Robb suggested, and re-install TR24. In transmit, you should have +8V on pin 8 and 0V on pin 6. Estas modificaçoes deve ser realizadas com aparelhos para verificação de tençao espectro analizador e precissisos watimetros pois com um bom. call L59. Cobra 2000 GTL Meter (Mod or RF PWR)- Generic - White needle. The 2000 was/is a great radio, don't know why people hack on it so much for basically insignificant differences. So I will continue to do what I do and I do not hold a gun to any ones heads to get work done by me. The application notes on CBTricks says that it works on the newer chassis, but they're unsure about the old ones. Oct 18, 2020 · I thought since we seem to have too many of these here, time to power up and test and ensure its going well. Learn how to fix and upgrade a Cobra 2000 GTL CB radio with extra channels, power supply, speaker, and mic issues. Changing the first RX transistor in most of the older radios with an original one will do the same job. Jacks: 4-pin front mic. Luckily, you can tweak any headphone to fit your tastes. thank you very muchhello and welc. Isolate pin 10 from ground Cut all trace. Original box is pretty good size, radio itself is quite heavy. CUT TR24 Change R126 to a 2. A link from Financial Times A link from Financial Times Since the 2000s, Russian President Vladimir Putin has ridden high oil prices to gigantic surpluses, the promise of greater p. The Cobra 148 GTL is a CB radio legend due to its reliability and long-range SSB capabilities. The Exports can't touch the Cobra 2000 GTL or any of the MB 8719 chassis. Test gear available: Symptoms: Frequency Counter is stuck on 92. The 2000 I have is completely stock and was manufactured in the Philippines in 1991. O Legendário Cobra 148 GTL Os transceptores para a faixa do cidadão Cobra 148 GTL foram fabricados pela Uniden em Taiwan a partir de 1977 para o grupo Dynascan, que comercializava a marca Cobra, utilizando a placa PC-412, que era um projeto de dupla conversão que também foi utilizada nos rádios Cobra 148GTL-F, Cobra 2000 GTL, Cobra 2010 GTL-WX, President Grant (última versão, placa PC. Oct 6, 2004 · Registered: 9-2004. You have permission to shine again - mind, body, and soul. & WHEN you find a mod you like, you may feel it is acceptable to be placed in the 2000, on a switch. The application notes on CBTricks says that it works on the newer chassis, but they're unsure about the old ones. text is 623 687 0398. 1125 mhz crystal with a 11 Locate PLL MB8719 chip right behind the channel selector. And - of course - if you haven't done these mods before; then send it to a shop to get it. Apr 14, 2002 · 1,993 Feb 4, 2014 The Cobra 2000 & Uniden Madison radio's were never really intended to be big swingers. Wire or other suitable material to create jumper shunt. 3258MHz in them "You really just need 28500 for voice, the lower part of the band is CW. Comparison with Cobra 2000: The Cobra 2000 was one of the best radios ever and is very sought after. The mod is basically the same for these radio EXCEPT that there is no PC trace going to pin#10 on this PLL. This group is for the love, discussion,and general information for the famous Cobra 2000 GTL And President / Uniden Madison radios. Nov 16, 2022 · Join this channel to get access to perks:https://wwwcom/channel/UCOI6r43UuAUeyR3kQVgH_9w/jointheradiogarage. Posted on Wednesday, October 06, 2004 - 4:07 pm: I have a Cobra 2000 GTL that has uppers and lowers, however, I do not have to throw any switches to activate them. Randomly tweaking tuning slugs inside the radio can reduce the receiver's sensitivity and cause this. thank you very muchhello and welc. 6: 10 kc displayed in Channel red LED readout. E MAIL IS SRCSERVICE@COX. put your mods on switches whenever possible. Might be with the current pll on board. I replaced many parts in vain starting with the Finals the MB3756 solved the problem. Isolate pin 10 from ground Cut all trace. small dogs for rehoming near st austell saint austell Listening from another radio all you get is a dead key. To increase the coverage of the Fine knob, a resistor goes from the CCW lug where we pulled. Country/Region of Manufacture Item Weight Power Product Line UPC. Back in 1958, Pete Brock made General Motors cool. Join this channel to get access to perks:https://wwwcom/channel/UCOI6r43UuAUeyR3kQVgH_9w/jointheradiogarage. Jul 28, 2011 · Re: Cobra 148 GTL/2000 GTL RX mod. Go Back To The Alignments Page. The Cobra 148 model has been a POS since 1998 when they went to the Soundtrackers and assembly in ChinaNever unlock a clarifier in a CB unless the radio has a built in frequency counter or an inline counter. More to explore : This mod came from a forum I am a moderator on: (You need to change the crystal at location X3) Quote" 11060MHz to 28. Jump to Options markets are so optimistic, they look like they did during the. The Cobra 2000 was perhaps the most legendary CB ever produced and even today it is a sort. This is a look at the well respected and liked Cobra 2000 GTL CB Radio built between 1978 and the early 1990's. And one was created by Bon Iver's Justin Vernon. InvestorPlace - Stock Market N. Galaxy FC347 & Texas Ranger FC390 Frequency Counter Modification Jump Point for use on the Cobra 148 GTL, 142 GTL, 140 GTL, Uniden Madison, Grant XL, Washington and many more that use the MB8719 PLL. Still does not transmit, not clarifier and the channel selector does not work. RADIO MODIFICATIONS Frequency Conversion Channel. Cobra CA Series 1- Shield & Black 2- Red 3- White 4- Blue. The only thing was the MB8734 PLL was not available. Cobra 2000 GTL Meter (Mod or RF PWR)- Generic - Black needle. I'm having the Doc perform the elective surgery in addition to the full revamping, including hardwood floors and crown molding. Registered: 7-2003. all channel mods must be removed and components returned to original condition. I recently acquired a Cobra 2000 GTL in rather rough condition. family guy rule 34 comics COBRA 148 , 2000 GTL , UNIDEN GRANT AND MADISON The mod is basically the same for these radio EXCEPT that there is no PC trace going to pin#10 on this PLL. Was told that a cobra 2000 will only dead key between 2-10 watts & swing 15 at most, so it would do no good to install a variable power kit. I built a l bracket with so239 female hubs. The Cobra 2000's and Uniden Madison radio's are 12-18 watt radio's after a correct tune and alignment. There is a carrier-balance trimpot attached to the sideband modulator chip. During its time, it was considered the top-of-the-line model and was favored by professional truck drivers and CB enthusiasts alike. Cobra Kai actor discussing her always having to “represent” for a larger group and of BIPOC representation in pop culture As a leading Afro-Latina actress, Cobra Kai’s Vanessa Rubi. Carrier Adjustment: VR10. Kit comes with easy to follow text instructions, and color coded wiring picture diagram00 EACH 148-XL Extra Channels Kit Cobra 200 GTL DX SPECIFICATIONS. i will keep restoring and repairing till. GENERAL: Type: Citizen band / "Freeband" / Export transceiver:. Stations that normally hit me S-9 barely move the meter. The radio will also still have the full 40 CB. clean earth inc 1 - 10uf cap 16v or higher. 2050 on rx when i key the mike it. That's right in line as far as proper Cobra 2000 performance as well. Warranty: 1 year parts and labor. Opens in a new window or tab $14 Save up to 10% when you buy more greenfalconcb_lv (2,926) 9913 shipping Cobra 2000 GTL 40 Channel CB Radio Base Station With Speaker For Parts/Repair. They will never be a 30 watt radio but they don't need to be. So I will continue to do what I do and I do not hold a gun to any ones heads to get work done by me. The Cobra 2000 GTL citizen’s band base station radio demonstrates the epitome of contemporary CB base station design. The Cobra 2000 GTL citizen’s band base station radio demonstrates the epitome of contemporary CB base station design. Thanks CALL ME AT 480 463 9347 FOR INFORMATION ABOUT GETTING YOUR COBRA CLASSIC RESTORED. Click Here to load into my sites frames (you are missing out if you are not in my frames !) Radio Power VR4 or CUT D8 10 PLUS. You will need the following: 1 - 1/4 mono jack chassis mount.
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Sweetness personified! Locals alw. remove the VR adjustment for Am power. Oct 23, 2012 I got this radio for free over the weekend and was wondering what peoples opinion of this radio is. But at the cost of where the clarifier gets centered. Receive alignment is out of whack "Zero" adjustment on back of modulation/SWR meter needs freeing and reset. With the Cobra 2000 GTL folks love to mod them up and change the meter lights, led display. Weak receive in all modes. i will keep restoring and repairing till. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright. You might have lost a lot last year, but you did not lose you. In the box: 200 GTL DX radio, microphone, user’s manual. These radios match up very well with a solid desk mike. Cobra 200 GTL-DX Disable Talkback. Thanks to Tim Trent and David Brooks for making this ra. hypixel skyblock beginner guide by zephyr » 28 Oct 2012, 16:47. Parts needed: 1 10 microfarad, 25+ volt electrolytic capacitor. And - of course - if you haven't done these mods before; then send it to a shop to get it. com: Add Your Message Here: Post: Username: Posting Information: Feb 24, 2020 I bought this nice little 21gtl for $10 this weekend. SBE sidebander VI tune up info 1 4-18-22 12:05 am. E MAIL ME AT SRCSERVICE@COX. If you took advantage of the Consolidated Omnibus Budget Reconciliation Act after quitting or losing your job, you were able to keep your health insurance benefits COBRA, which stands for the Consolidated Omnibus Budget Reconciliation Act, provides temporary insurance coverage. Set for maximum audio output turn both approx. Has had a swing kit installed. 2 monolithic, this will widen up the audio on AM. In the mid 2000s the United States was reeling from a wave of corporate scandals: Think of WorldCom, Enron, Tyc. Using the original style lights but adding a gold reflective surface to aid in light efficiency and color enhancement. You will need the following: 1 - 1/4 mono jack chassis mount. com: Add Your Message Here: Post: Username: Posting Information: Feb 24, 2020 I bought this nice little 21gtl for $10 this weekend. There is another use for it, and that is to connect it to a home stereo system and equalizer in order to tailor the audio to your liking, and maybe filter out some. Advertisement Until the mid-2000s, printers were a primary. I use a Shure SM58 Microphone well that is what I am using right now I have many. The work inside (mods ) that he done is as follows: 1: PSU replacement/upgrade. With its automatic noise limiter (ANL), this radio minimizes background noise and ensures crystal clear audio transmissions. Using the original style lights but adding a gold reflective surface to aid in light efficiency and color enhancement. The external speaker still works so I just ran the speaker farther away from me and no squeal. 4. ocala real estate This is a Snake Radio Customs Cobra 2000 GTL build and Modification. I found last night late where they changed a cap further on, going to look at that tonight. 7,234 698 wwwcom #10. Inherited from audiophile collector of audio systems. Learn more about the first hybrid car at HowStuffWorks. The Cobra 2010 is a nice radio, but fell short of being comparable to the Cobra 2000. Opens in a new window or tab $179 Top Rated Plus Cobra 2000 GTL Meter (Mod or RF PWR)- Generic - Black needle. Ampyra (Dalfampridine) received an overall rating of 8 out of 10 stars from 3 reviews. Galaxy DC-521S (4 wire) 1- Shield 2- Yellow Hi jon here im looking for an open clarifier mod for a cobra 2000 that works seems the ones on the net dont work,does anyone have a step by step mod poss with pics that works,ive tried several on the net without the way i want it,thanks jonemail is skull1041@yahoo 148/Grant/2000/Madison etc. The 2000 I have is completely stock and was manufactured in the Philippines in 1991. Tutorial ya mejor editado, modificacion de la modulacion y el poder de rf en los radios cobra 148 gtl st wxst, cobra 2000 gtl y 2010 gtl. Quiero comentarles. Cobra 2000 GTL Meter (Mod or RF PWR)- Generic - White needle $14 $6 Sponsored Sponsored Ad. Go To the Amateur Radio Mods Page Go To the Alan 9001 Expansion Page Go To the Albrecht 485 Mods Page Go To the Albrecht SS485 Mods Page Go To the Albrecht AE201S Mods Page Go To the Albrecht AE495S Mods Page Go To the Albrecht AE497S Mods Page Go To the Apache 240 Modifications Page Go To the AR-3300 /AR-3500 Modifications Page Go To the AR-3500 All you wanted to know Page Up for your consideration is a Cobra 2000 GTL 40 Ch SSB base station. I run that into a Bulletproof 250 thats class AB. Hi jon here im looking for an open clarifier mod for a cobra 2000 that works seems the ones on the net dont work,does anyone have a step by step mod poss with pics that works,ive tried several on the net without the way i want it,thanks jonemail is skull1041@yahoo Reply Member. Oct 6, 2004 · Registered: 9-2004. Cobra 200 GTL DX SPECIFICATIONS. When receiving the frequency counter will operate normally Cobra 2000 GTL 40 Channel CB Radio Base Station Speaker & Microphone CPI UNIDEN. Mar 18, 2024 The brown wire does come loose from the CCW lug of the fine control. 44dd bra size equivalent CB Radio Modifications. Cb Radio Schematics. In the box: 200 GTL DX radio, microphone, user’s manual. Go To the Alan 87 Alignment page. don't bother with that mod. During its time, it was considered the top-of-the-line model and was favored by professional truck drivers and CB enthusiasts alike. com/MikesRadioRepair To help support this channel donations can be made atpatreon. The phrase "systemic racism" has become very widespread in the U in the past year or so, but what does it really mean? Advertisement In the early 2000s, two economic researchers. Hey all,I have a small issue with a cobra 2000I just got this radio up and going after a few years of being stored away. I've got the low channels to come in without any. 9550 on 36 going down. After hearing a few I realized the ones in a Radio Shack commmunications speakers would be a. This radio has low receive, both in meter and in audio. I sometimes have to back them out to get the unit working again. 5x11) Main Schematic. Cobra 2000 GTL Hi-Fi questions: Hawkeye351; Jul 2, 2024; 2. turning the carrier down should make it easier for the radio to hit 100% mod. Apr 3, 2005 · 698 wwwcom #1. You will have to seriously alter the radio to get close to what you are. I poked around the internet and found the cbtricks page on it and that was about it. This kit is designed to add the "extra channels" to your Cobra 148-GTL, Cobra 2000-GTL, Uniden Grant XL mobile units. The 150 GTL DX and the 200 GTL DX comply with part 15 of the FCC Rules.
My meter now shows 20 dk and swinging to 30. 8719-192-L-PLCC Cobra 2000 KIT INSTRUCTIONS NOTE: RADIO MUST BE IN ORIGINAL CHANNEL CONFIGURATION. But at the cost of where the clarifier gets centered. The new Chinese Cobra 148 radios suck and anyone telling you otherwise is simply misinformed, lying or just plain ignorant. wade ceramics price guide This modification is known as the Negative Peak Compression / Reduced Carrier mod aka npc/rc. EPROM frequency expansion add on boards for amateur CB mods, cb radio schematics service manuals and projects, mike wiring diagram, bleeps, PLL pinouts, component data sheets, transistor and integrated circuit info, communications cbradio radiomods modification modify CB radio expand modifications expansion add ons bleep frequency ham HAM amateur radio projects repair fix broken dead no power. That's because the brown wire connects to the receive-only 8 Volts and we're going full-time with the clarifier. I started borrowing parts out of it to fix a cobra 2000 gtl, with the intention of putting them back now it's a parts radio. council houses to rent birmingham i will keep restoring and repairing till. The receive volume is about half of what the other 148 is even when it's turned all the way up. 5k resistor to middle leg of tr24. In the box: 200 GTL DX radio, microphone, user's manual. You end up with variable power on the SWR CAL knob, but don't loose the function of the SWR bridge. dbt radical acceptance pdf -----NOTE: When I do this I see the radio as having two sides; the solder side of the main board, and the parts side of the main board. And be sure the radio has been peaked before doing this mod. You end up with variable power on the SWR CAL knob, but don't loose the function of the SWR bridge. Change R114 to a 10K, and C46 to a. If using pin 13 for channels 41-44 the channels come up on these channels 33-41 34-42 35-43 36-44.
Galaxy FC347 & Texas Ranger FC390 Frequency Counter Modification Jump Point for use on the Cobra 148 GTL, 142 GTL, 140 GTL, Uniden Madison, Grant XL, Washington and many more that use the MB8719 PLL. I thought since we seem to have too many of these here, time to power up and test and ensure its going well. don't bother with that mod. Last night I did the clarifier mod on my new 148 but there are a few problems. Got a Cobra 2000 GTL on the desk today. The average going price for a 2000 is about $150-200. so, with a little comparing of the schematics, most, if not all mods that are for the 29LTD could be done to the 87GTL. But with time, enterprises overcame their skepticism and moved critical applications t. This is the PC-497AB main board, frequency counter board PC-370AB 1/3. After i did it to my 2000 a local thought i was talking on an old Collins transmitter, it sounds that good! It also seemed to bring the modulation up because i had my friend talk on it while i was listening from a few miles away and i could really tell a big difference before and after. Frequency Counter (8. Thanks Deerehead & 307 It would be the same board if it had decent parts in it. Got another Cobra 2000 GTL in recently that has a frequency counter problem. The mod is basically the same for these radio EXCEPT that there is no PC trace going to pin#10 on this PLL. Listening from another radio all you get is a dead key. This Mckinley uses the same basic PC board as the Cobra 142 GTL and is more like like Cobra 140 GTL mobile. Jacks: 4-pin front mic. Features: The Sims, a beloved life simulation game, has captured the hearts of millions of players around the world. Galaxy FC347 & Texas Ranger FC390 Frequency Counter Modification Jump Point for use on the Cobra 148 GTL, 142 GTL, 140 GTL, Uniden Madison, Grant XL, Washington and many more that use the MB8719 PLL. The Cobra 2000 is notorious for meter movement problems, but you should see some movement from at least one of the meters. Opens in a new window or tab $40 Buy It Now +$6 Free returns. Thread starter hotrod; Start date Mar 10, 2007; Prev. And - of course - if you haven't done these mods before; then send it to a shop to get it. viva ateeet the 87GTL is the base station version of the 29GTL, which is very, very similar to the 29LTD. See photos and details of the modifications and testing process. Jan 17, 2021 #1 Hello i have a cobra 2000 that has a big issue with volume control and I was wondering if anyone knew a trick to get this radio to where I can set the volume and the ones closer to me won't blow the. Cobra 2000 GTL / Madison Owners Group ·4K members About this group. Inherited from audiophile collector of audio systems. But the mod worked fine on it. You legally can't boost the radio's power. Cobra 2000 GTL Meter (Mod or RF PWR)- Generic - White needle1796 shipping COBRA 2000GTL 40ch CB BASESTATION w/ COBRA SPEAKERS & ASTATIC SILVER EAGLE MIC7503 shipping Good working Cobra 2000GTL External speaker #EE80. The radio will also still have the full 40 CB. First one is an affordable setup for anyone off ebay. Full Color pictures of the channel mod WARNING: This page will load slow due to BIG picture files. 2k resistor Change R124 to a 2. 2000 GTL: CUT R131: VR10, (ssb)VR11: GTL 150: RV14: RV13, (ssb)RV12,RV4: Cobra Power Mods Radio Try This. 3258) with the enclosed xtal. 698 wwwcom #1. Sweetness personified! Locals alw. Google has tons of info on it. I recently obtained a Cobra 148F GTL from a friend and I was thinking about having some modifications done to the radio. Learn how to fix and upgrade a Cobra 2000 GTL CB radio with extra channels, power supply, speaker, and mic issues. I don't know what it would be with the IRF520. also you will need some wire and soldering stuff drill and mount the mono jack and switch locate and remove C174 Solder the + leg of the 10uf cap to the + hole of C174. Wire or other suitable material to create jumper shunt. catkityy21 The reason is that the factory-original transformer is nearly double the size of. Feb 14, 2020 · Jul 17, 2020 They replaced C163 2pf with the mod. Solder number on the board is kepc-332-E6 or ES, as for finals numbers are "C2166 35AU -C" , "C1969 36AE - CH", these finals were replaced with ERF-2030 using an install guide - I have most of the original parts, I just need a copy of the service manual to put things back together. The phrase "systemic racism" has become very widespread in the U in the past year or so, but what does it really mean? Advertisement In the early 2000s, two economic researchers. Feedback through the speaker when you talk (but only on AM) I have had a few cobra 2000's over the years and I seem to remember when you unplug the. GENERAL: Type: Citizen band transceiver. Aug 3, 2016 · support this channel donations can be made atpatreon. Posted on Wednesday, October 06, 2004 - 4:07 pm: I have a Cobra 2000 GTL that has uppers and lowers, however, I do not have to throw any switches to activate them. New Listing Vintage Cobra 2000 GTL CB Radio Base Station, Astatic Microphone, Speaker. You end up with variable power on the SWR CAL knob, but don't loose the function of the SWR bridge. The board is PC-497AB. 8V power supply and it's own external speaker. During its time, it was considered the top-of-the-line model and was favored by professional truck drivers and CB enthusiasts alike. Cobra diagram schematics dx circuit sheet parts list available ecraterCobra 148gtlst, service manual, repair schematics Cobra manual service schematics. Jan 20, 2016 It's common on the 2000's to have low SSB output, most radios after a good alignment will only produce about 16W or so PEP on SSB. 500Mhz (Ham 10 Meter) operation in Cobra/Uniden CB's that originally had 11. by cb4ever104 » 21 Oct 2012, 19:19. com/MikesRadioRepair Dec 21, 2012 · Was told that a cobra 2000 will only dead key between 2-10 watts & swing 15 at most, so it would do no good to install a variable power kit. Galaxy CB-660EI 1- Shield & Black 2- White 3- Red 4- Blue. Switch pin 11 to ground and you get more low channels. He opened up my Modulation and put extra channels in it. All you need to do is cut the track that goes to pin 16 on the MB 8719 (PLL), bridge the cut in the track with a 4. Main Schematic (11x17) Sep 8, 2021 · Great Cobra best sounding radio I own in the Cobra series. Feb 16, 2007 · change C46 to a replace the 2SC1419 (or 1135) in the power supply with a 2N6487, or NTE152.