Cobra 2000 back to stock from channel mod

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August undefined, 2024

WebApr 1, 2011 · In fact, the Cobra 2000 GTL has 4 ground potentials. I would be interested in some photos of the Citizen radio you have. The Mic pin-out is the same as most Cybernet chassis radios. If you can find a pin-out for a 5 pin din Cybernet chassis it should work. A Realistic made by Cybernet is the same. If you have a 4 pin standard Mic Jack the pin ... WebRemember this is a STOCK Cobra 200 GTL DX – the only thing that has been added is a DM-452 knock off microphone. Type: 10 meter (export radio) – will cover 11 meters after conversion Frequency range: 28 to …

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WebCobra 2000 BIG AUDIO!!! at silicon two one two dot org Today, we’re going to modify a Cobra 2000 GTL base station for BIG AUDIO. Parts needed: 1 10 microfarad, 25+ volt electrolytic capacitor Wire or other suitable … WebJan 26, 2024 · the power switch in the 2000 switches the ground, so there is always 13.8 volts potential at the PC board, even when the radio is "off". normally, the lamps will drain this voltage down to low enough to keep the channel LEDs from glowing, but LEDs won't do this, and will allow around 2 volts to always be present at the channel switch. symmetry energy houston

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WebMay 4, 2024 · Cobra 2000 eprom channel mod A forum for the discussion of matters of a technical nature. All such activities are undertaken at the readers discretion and own risk. If you don't know what you are doing, don't blame us if it all goes wrong! 11 posts • Page 1of 1 BigW Regular Posts:16 Joined:24 Sep 2016, 18:55 Cobra 2000 eprom channel mod WebAug 16, 2011 · The .1125 xtal shown in the pictures above looks like the stock xtal. Since that is so; then the channels will be different from the ones mentioned above. Maybe a … thackeray road larkfield

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Extra Channel mods for the MB8719 PLL - oocities.org

WebApr 28, 2014 · Cobra 2000 direct injection problem Postby Draxx2755» Monday, 28 April 2014, 5:36 AM I acquired this 2000 about a year and a half ago. I set it up for direct injection at c174 using a 10uf tantalum cap with the positive side going into the plus side of c174. I also set up a switch so I could switch it back to stock and use a Shure 526T. WebMar 3, 2005 · i always keep good notes on my mods and save all the old parts, so if i choose, i can put the radio back to stock. however, if i find that i like the sound of that … thackeray road exeterWebSep 9, 2024 · Aug 30, 2024. #1. I want to channel mod a cobra 29ltd and a few other am cb radios that need to be modded with a crystal injector board. I know the xtal freqs just … thackeray road hartlepool

"WebJul 8, 2016 · Looking at the mods, it does appear as though LC is right, looks like the extra channels and clarifier are tied together to get into the "half" channels. Interesting way of … " - Cobra 2000 back to stock from channel mod

Cobra 2000 back to stock from channel mod

COBRA CB RADIOS MODIFICATIONS - CB Radio Citizens Band Radio …

WebSep 9, 2024 · The Expo kit's output overpowers the PLL input, moving all 40 channels up or down. The radio's stock 15.36 MHz signal is still there at pin 4 of the TA7310 mixer chip, but the stronger level from the Expo kit drowns it out. The PLL locks to the stronger one. To go 45 channels up, the crystal is 15.810 MHz. Down 45 is 14.91 MHz. http://www.copperelectronics.com/discus4/messages/34/78245.html?1111620633

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WebAug 16, 2011 · Locate PLL MB8719 chip right behind the channel selector. Isolate pin 10 from ground Cut all trace. Wire a switch from Pin 10 to ground and another from pin 11 to pin 12. You may need to re-align. 8719 channel chart Cobra 140 142 GTL Position 1: Pin 10 down, 11-12 down NORMAL CHANNELS Position 2: Pin 10, Pin 11-12 down WebOct 16, 2024 · The Cobra 2000 CB Radio was first manufactured in the early 1980’s by the Dynascan Corporation in Chicago USA. It is a 40 …

WebCobra 2000 GTL /1000 NEW POWER / SIGNAL METERS Brand New $32.95 barkettelectronics (4,734) 100% Buy It Now +$9.95 shipping 14 watchers Sponsored Cobra 1000GTL CB RADIO 40 Channel Owner manual 27 pages comb bound gloss cover Brand New $15.95 Save up to 20% when you buy more or Best Offer fadetoblackauctions … Webwould be Channel 19 on a stock radio and Channel 40 on one that has the popular expanded frequency range of 26.815 to 28.045). If you have a favorite channel that is …

WebHere it is.Will try to do something more in depth later on! WebOct 20, 2024 · 18. Feb 21, 2013. #6. Hi, with the 11.1125 just isolate pin 10 from ground and you get 40 low channels (26.325~26.765). Switch pin 11 to ground and you get more low channels. If you uses 2 switches, one for each pin you get the low channels starting from 26.175. I'm late to work. See you later.

WebMar 5, 2012 · Use an external power supply and plug that into the receptacle for external power in on the back. There is an AC/DC swith right next to it that you will need to use at this time too. Check and see if the AM regulator has been removed. This may well be the cause of the 'too much AM modulation and distortion on SSB'.

WebCobra HH28 Basic low-priced 40 channel CB Cobra HH33 this model is discontinued! ... Replace stock final with a 2SC1969 transistor. - THIS IS OK TO DO 5. Re-tune coils … thackeray reviewWebAug 6, 2011 · 1) Change R126 to a 2.2k ohm resister. 2) Change R124 to a 4.7k ohm resister. 3) Remove TR24 4) Re-tune L37 and L38 for maximum forward AM power. 5) Adjust VR10 for maximum PEP on AM. 6) Adjust VR11 for maximum PEP on SSB. I do not recommend cutting R131 which limits the modulation. thackeray restauranthttp://lesterscustoms.com/cobra_2000_kit_inst thackeray road sw8http://www.copperelectronics.com/discus4/messages/14/16312.html?1054027852 thackeray road ipswichWebMar 5, 2012 · I would like to figure out what all has been done to this radio (besides the 80 channel mod and the unlocked clarifier mod) so that I can restore it back to original. I … thackeray road southamptonWebMay 4, 2024 · Surprisingly it powers up transmits and receives; problem is that there's a channel mod consisting of an eprom board which is not working properly (frequency … symmetry entertainment singaporeWebDec 4, 1999 · Here is a neat little mod for the 148, 142, & Cobra 2000 GTL. works great with linears, and causes no harm to the radio. You end up with variable power on the SWR CAL knob, but don't loose the function of the SWR bridge. remove the VR adjustment for Am power. remove the wires from the SWR _CAL, and tie the CAL circuit to where it is wide … thackeray road worthing