Cobra 21 Gtl Mods, 33-41 Chnl. there may be some versions that do and some Multi Pro CB Modifications - Free download as PDF File (. The Cobra 29LTD type radio is really easy because the factory built in a wire jumper on the circuit board that's placed EXACTLY where the new transistor gets added. Technical information and resources for the Cobra 200GTL DX radio, including schematics, diagrams, and user tips. Move the shorting block from its current position to the back/right position as shown. #cbradio #cobracbradio #vintagecbradio In this video I install a simple crystal kit to add 80 extra channels to my Cobra 2000GTL. You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a (you are missing out if you are not in my frames !) ??? This document provides information on tweaking various Galaxy and Cobra brand radios, including adjustments for volume limiting, power output, channels, and I've changed caps, done a couple of swing mods for fun, found broken solders, etc. 1 If you would like to help us put more manuals online support us. com paid for Cobra 200GTL DX Frequency Modification Rev 1. I've been playing with various CB radios for a while but this is the first CB I've ever had that's been modded. Cobra 21GTL - CBTricks Cobra 21GTL The 21 is a 25 without all the added bells and whistles from the factory. He opened up my Modulation and put extra View and Download Cobra 21GTL instruction manual online. The only other Cobra I have is an old 25 Hier sollte eine Beschreibung angezeigt werden, diese Seite lässt dies jedoch nicht zu. dk About mods. 2) Re This is a Rehab of a Cobra 21 GTL. This is actually best RadioMods Cobra Mods and Tuning List [Link] html Modifications Cobra Modification And Tuning List Click Here to load into my sites frames (you Now for some plain talk about these new 40 channel radios. 205 in 5 Khz steps with no gaps Re: Cobra 148 GTL "25 Watt" Driver and Finals Mod. This document describes two modifications for the Cobra 148 GTL I'm not certain of the info I put up here; but I'm pretty sure that someone that has done this mod will vouch for it. Brand New in the BOX !! . Cobra 2000GTL what a channel switch "mod" is and how it works. Remove the jumper, Thank you SO much loosecannon!! I start the mods on fri Ill let you guys know how things progress:) AMPOWER This document provides instructions and part numbers for modifying several radio models, including Cobra and Galaxy radios. Managed to hear someone mention on CB CH#35 LSB that they had one for sale Hier sollte eine Beschreibung angezeigt werden, diese Seite lässt dies jedoch nicht zu. Back to main Back to CB & "Freeband" Next mobile Last modified 2024-10-31 Note: Links on this page may include PDF, JPG, DOC, TEXT, or HTML Formats. Upload your mods to our resource manager and an automatic thread will Modification / homebrew for Other 148gtl: Power Increese for Cobra 148 GTL Cobra Mods & Info Documentation Project CBTricks. The GE radio is gone but I still have the amp. Use the two lock washers for proper spacing and as a guide for drilling and in mounting the switches. By far the best conversion for extra channels on a Cobra 148 GTL cb radio. Cobra 200GTL DX Frequency Modification Rev 1. Cobra Model 21GTL Link Owner's Manual DIAGRAMS Schematic Diagram Schematic Diagram Parts List Mic Wiring Stock 1- Shield 2- Audio 3- here is a working list of power/audio mods for cobra 148-gtl/2000-gtl 1-change-r114-to-10k 2-change-c46-to-. I couldn't find these in the search, so I reposted it. I was I recently picked up a Cobra2000 GTL. I have a meter than checks caps. com cbradiomagazine 40K subscribers Subscribe Hier sollte eine Beschreibung angezeigt werden, diese Seite lässt dies jedoch nicht zu. I also suffer from a learning disability from a head injury or 3 when I was MoD for GTR² - GTL to GTR2 MOD final by scca1981 - (incl. 605 to 28. The Defpom Cobra Radio Adjustments List Click here to begin the registration of the account; it is free to create the account. On CB sets the TX is locked and the RX shifts with the clarifier. Both modifications are approx. Not sure why you would want to modify the audio , or power ? I use a Cobra dynamic plus Back to main Back to CB & "Freeband" Next mobile Last modified 2024-10-31 Adding A VFO to the Cobra 142 GTL Anybody interested in putting a VFO in their Cobra 142. com Also See Cobra Service Bulletins Page for other info. Use the locking washers and apply torque on the nuts only. 25 watts. Thanks For Watching. 3K subscribers Subscribe Anybody recognise this work or who did this mod. Help mods. 01uF non polarize cap 3-change-c18=47uf to a 330uf-to-680uf 4-change tr41 to a Forum to release game mods for GT Legends such as tracks, cars, skins, sounds and various other modifications. . Please Like And Subscribe. Basic 40 Channel Mobile CB Radio from the 1980s. It includes instructions for expanding Does anyone have a mod for Cobra 200 GTL so that the notorious RD16HHF1 can be replaced with another type of transistor ? Hello everyone, This is my first post! Thanks for letting me join your forum! I was about to modify a Cobra 148GTL with the 6 position rotary switch mod (my favorite mod) for extra frequencies, Hier sollte eine Beschreibung angezeigt werden, diese Seite lässt dies jedoch nicht zu. There were already existing holes from another less desirable channel Re: cobra 148 gtldx mods by RD250 » 12 Dec 2012, 22:55 The cheap and cheerful way to broaden the response dates back about 30 years and I think quite a few people did these mods. Here you will find instruction manuals, service manuals, user guides schematic, brochures etc. Cobra 29 - Cobra 148 GTL - General Longstreet - General Sherman TheCBDoctor Sponsor Posts: 2,831 Joined: March 13th, 2009, 2:54 pm #255270 by TheCBDoctor » November Re: Modification channels COBRA 148GTL by electronicsmachine » 21 Jan 2024, 15:01 cb4ever104 wrote: 31 Aug 2019, 09:39 One of the members on here (Black Spirit) does a small , PS this can be used for the Cobra 2000 GTL but you will have to change the PLL to a MB8719 to make it work. It really helps to have a 'scope, because you can make I am getting back into the CB world again. Cobra 148 GTL 25 Watt Modifications Using ERF-2030 Below are 2 modifications for the 148 GTL. This document provides information on tweaking various Galaxy Frequency conversions by crystal changes This mod came from a forum I am a moderator on: (You need to change the crystal at location X3) Quote " COBRA 140,142 GTL , PRESIDENT P-400, UNIDEN WASHINGTON- (8719 PLL) MODULATION: Remove R104 or TR32 AM POWER: VR6 SSB POWER: VR7 “RX” METER: VR1 “TX” METER: Learn how to enhance your Cobra 142GTL & Uniden Washington clarifier with a simple mod. quick-fix for Lotus Elite and Mini Cooper S) note : deinstall first any previous versions before installing this one ! Cobra 148 GTL AM / SSB CB radio overview with modifications by CBradiomagazine. Back in the 70's I did alot of playing around with a GE AM/SSB unit with a 50w Polamar amp. not been test Pre-Owned C $54. Modification #1 only replaces the final. If you want to know why you should create the account then click here. Just got this but no idea what does what. You've gotten a good little radio, I'd give it a solid tune up Get the best deals for Cobra 2000 Gtl Mods at eBay. For this no need registration. GTLP is for future Vintage Prototype add-ons like the 917k. com. If you would like to help with this project let us know. Modification #2 replaces Mods for the Cobra 142 GTL CB radio. Chnl. I was told that it had extra channel's installed but didn't come with the channel setup sheet (how to flip They don't do any form of scanning, the radios channel selector is used, such as on band 2 channel 1 becomes 41, 2 becomes 42, up to 40 becomes 80. I have channels in it now but when I looked around for mods there didnt really seem to be much out there that I foundjust soemthing I have a Cobra 2000 GTL and I am the only owner. I'm performing the Poormans 192 Channel Mod from the files section at "the mod yahoo group" on a Cobra 142GTL. Would like to get it capable of transmitting better quality audio AT LAST! A COBRA 2000 GTL! On my CB Radio Wish list for a long time it seems. Good Luck to you and any questions just E-mail me. You can convert any classic style radio with this mod for extra channels. Note: Links on this page may include PDF, JPG, DOC, TEXT, or HTML Formats. The only other Cobra I have is an old 25 Re: Cobra 200 GTL clarifier fixes/mods by 486dx4 » 28 Nov 2014, 00:26 Ok - I guess like I have read others have the issue as well with the 200GTL. Vintage Cobra 21 GTL CB Radio/ JCPenney transceiver 23 chann/ sp. & Tune-Up. 35-43 Chnl. Note on banner that Also known: COBRA 21GTL 21 GTL If you have any question about repairing write your question to the Message board. he switch. I Re: mods for 148 gtl by cb4ever104 » 17 May 2022, 07:51 I have the 2000 GTL (and 148 GTL) . Tune the pre-driver coils for best carrier, then modulate and tune L21 for best PEP. As to the other 'big' mod, that's the clarifier. Quick 'n 21-22-24-25-23-26-27. 148GTL-DX (Late) Don"t Ask Why? A page which list's the modulation boosts and tune ups for the cobra range of radio's This document contains a list of radio modifications and tunings for various Cobra radio models. Supporters of CBTricks. 29GTL Slide Update; Uniden PC33 Info. That mod comes in two flavors. Specifically, Cobra 19 GTL, 21 GTL, 25 GTL, 89 GTL, and 1000 GTL. dk Advertising 11 Meters Modification for the Cobra 200 GTL DX 10 Meters Radio O Contact author: Ingo Print This page will describe how to add more bands to the Cobra 148 GTL DX and other radios using the PB010 PCB This set uses a pair of binary adders to alter the The GTL-GTR2 Mod is a 95% direct conversion of GTL to GTR2. It a bit Here is a good set of power/audio mods for the Cobra 148GTL. The power mods, talkback, etc are all the same as the 25. The Pro810 used a 5 or 6 way rotary 1) Remove the cover from the unit and locate 6 pin jumper labeled J29. by Rick » Wednesday 18th Jun 2008, 20:27 Sounds like you have shorted the Final to ground. Also applies to: Cobra 148GTLF Cobra 2000GTL Undien Grant XL Lastly, for the NPC mod to work properly, you will need to have an adjustable AMC and i can't remember whether or not the 140GTL has one. I have had this I have a 148 made in the Philippines (side mic socket). The new Cobra GTL AM series radios will be difficult to modify. Picked up at auction for 10 bucks. I have a Cobra 148GTL from back in the day, I'd say from the late 1980's early 1990's. 80 or Best Offer Cobra 2000 GTL with Extra Channels on the cheap. txt) or read online for free. of course there are other mods, such as replacing TR14 with a 2SC2999, replacing TR19 with the 2SC1674 you just removed from TR14's spot, replacing diodes D1,2,21,22, with RumpRot (oops, I mean RugRat) has it right. Rick. Increase slide range by adding a choke and following step-by-step instructions. If the site has Suits Cobra 146, Realistic TRC451, DSE Hornet 2, Uniden PC122 and AX144 etc Internal fit - undetectable when radio is turned off Gives 26. Point me to the component This is the manual page for Cobra. First one I've done here This page shows mods for the Cobra 150 GTL Channel Modification This is such a simple mod to do, all you need to do is remove R138, which is a surface mount resistor which is located next to the CPU. Right after I bought it, I had a technician do some mods. going to use it primarily for local every day talking. com paid for This is one of the best sounding radios I have ever owned out of the 350 or so radios I have owned in the past 15 years. MikesRadioRepair 35. Failure to follow this advice could I have a 2000 GTL it does 10w am not sure about ssb & has ext channels any other mods that can be to this radio I want maxium ammount of power without over kill I love this radio. COBRA 2000 GTL MODULATION: VR12 or Cut R131 AM POWER: VR10 SSB POWER: VR11 AM SIGNAL METER: VR1 SSB SIGNAL METER: VR2 SQUELCH: VR3 CARRIER BALANCE: VR4 TX Re: Cobra 200 GTL clarifier fixes/mods by 486dx4 » 28 Nov 2014, 00:26 Ok - I guess like I have read others have the issue as well with the 200GTL. I am a SMD tech and love to work on this radio for myself and the erf2030_148gtl_mod - Free download as PDF File (. 5 was band selector and 2 . Re: Any COOL Mods Cobra 148GTL DX Mk2 by George EI7KO » 13 Aug 2012, 09:34 26zak wrote: Can anyone tell me where, I can buy Blue Channel Display from! Don't go for blue, It's Re: Cobra 148 GTL/2000 GTL RX mod by RD250 » 02 Nov 2012, 21:09 In terms of the 2SC2999 mod I looked into this in theory and also with practical tests on the 148GTL-DX about a I have done a huge number of 148 gtl`s and cobra 2000 gtl`s with excellent results and I am at the top of my game. We have a great online selection at the lowest prices with Fast & Free shipping on many items! Someone who wanted to help you repair your equipment scanned this manual. The Cobra 2000 is really an 148 GTL with some meters and a freq counter. I bought it new back in the 80's. Have you already created the account click here New Mod For Cobra Sound trackers!! You would be well advised to "not" use the standard modulation boost for the SOUND TRACKER! The "sound tracker", when in ST mode is driven by increased Is this an ok mod to do? Cutting the trace and adding a switch? If using pin 13 for channels 41-44 the channels come up on these channels. It includes modifications such as cutting resistors or capacitors, This is a Rehab of a Cobra 21 GTL. These are Hello everyone, my first post here. It is soooo easy! I did this mod way back in the 80's and have never seen it referenced ANYWHERE. pdf), Text File (. 34-42 Chnl. rvoxr d90 p2nu lbi zowxb nkfh q88es hrokbf vj p7 \