Search found 47 matches

by YosemitySam
Sunday 2nd May 2010, 9:14
Forum: CB Radio Repair and Troubleshooting
Topic: Cobra 29ltd Chrome
Replies: 1
Views: 2387

Re: Cobra 29ltd Chrome

Fixed it thanks for the help.... :? :wink: :dance:
by YosemitySam
Monday 5th Apr 2010, 6:41
Forum: CB Radio Modifications
Topic: Blue LED Channel In Cobra 25
Replies: 1
Views: 1992

Re: Blue LED Channel In Cobra 25

Well I did find out after looking in to it more, that they have a different pin out than the 29 so that explanes why they don't work. I'm still not sure where I can get the part, all that I have seen are for the 29 common anoid insted of common cathoid. Any help would be great guys thanks.... :bangh...
by YosemitySam
Sunday 4th Apr 2010, 14:05
Forum: CB Radio Modifications
Topic: Blue LED Channel In Cobra 25
Replies: 1
Views: 1992

Blue LED Channel In Cobra 25

Does anyone have the part number to replace stock Channel led in A Cobra 25ltd Classic? The part that works in the Cobra 29 is not the same? Or am I doing somthing wrong???
by YosemitySam
Sunday 4th Apr 2010, 13:56
Forum: CB Radio Repair and Troubleshooting
Topic: Cobra 29ltd Chrome
Replies: 1
Views: 2387

Cobra 29ltd Chrome

Make and Model:Cobra 29ltd Chrome PCB Number: EPC-060-M1 PLL Number:29ltd 0505 11600-00 Test gear available: AM/FM Signal Generator, Osilliscope, Bird 43, Fluke 8050a, Hickok Frequency Counter, Sinadder, Audio generator,ect.... Symptoms: Radio has slight RX, while no TX at all. Keyup will allow talk...
by YosemitySam
Sunday 4th Apr 2010, 5:49
Forum: CB Radio Modifications
Topic: 2sc2312?
Replies: 2
Views: 2894

Re: 2sc2312?

I have used the 2312 in cobra 29, with great results. They sound "in my opionion" better than the mosfets people brag about all the time. Sad that the 1969's and 2312's are becomeing absolete. Mosfet may put out more but need to be cut back look good on the scope. Just my input..... take with a grai...
by YosemitySam
Sunday 4th Apr 2010, 5:41
Forum: CB Radio Modifications
Topic: 2sc2999 upgrade
Replies: 4
Views: 5754

Re: 2sc2999 upgrade

Hey, sorry no one answered you question, I get that a lot too. But I do have some info for future referance to those who want to do this mod to other radios. I don't know if you radio fall into it or not but, if not you have just added to my list and made it easier if I should have to do the mod in ...
by YosemitySam
Tuesday 23rd Mar 2010, 2:48
Forum: CB Radio Repair and Troubleshooting
Topic: Relay talkback
Replies: 0
Views: 1842

Relay talkback

General lee radio,

Relay talkback needs to be uninstalled, any info?

Thanks Fella's
by YosemitySam
Sunday 6th Dec 2009, 12:42
Forum: CB Radio Alignments
Topic: Cobra 2000GTL Alignment instructions needed
Replies: 3
Views: 4227

Re: Cobra 2000GTL Alignment instructions needed

No problem, I acutually emailed Cobra with the board number. I find that if you email places like Cobra or Galaxy for Schematics or other Aligment related isues they can sometimes help but not always.
by YosemitySam
Friday 20th Nov 2009, 13:07
Forum: CB Radio Alignments
Topic: cobra 200gtl
Replies: 2
Views: 3013

Re: cobra 200gtl

Did a quick check, I found the Alignment for the radio in this pdf file on the same link as above.

http://www.cbtricks.com/radios/cobra/20 ... e_info.pdf


Hope that will help, thats all I could come up with for now....
by YosemitySam
Friday 20th Nov 2009, 13:02
Forum: CB Radio Alignments
Topic: cobra 200gtl
Replies: 2
Views: 3013

Re: cobra 200gtl

Hi, not sure this will help. I don't know much about this radio but here is a link to some helpful things. You may have already searched it out but just incase you haven't seen it yet. Hope it helps.... 73's


http://www.cbtricks.com/radios/cobra/20 ... /index.htm
by YosemitySam
Tuesday 17th Nov 2009, 14:29
Forum: CB Radio General
Topic: DON'T LET THIS SITE DIE!
Replies: 5
Views: 4819

Re: DON'T LET THIS SITE DIE!

Just reniewed my $20 membership, its worth every penny. Nothing wrong with this site as long as we can keep out government/taxes via cap and trade, that could happen soon.
by YosemitySam
Monday 13th Oct 2008, 6:10
Forum: CB Radio Alignments
Topic: Hookup RF Generator and Oscilloscope?? Help PLEASE.
Replies: 6
Views: 7448

Thanks timrim, I understand now. You helped me out and pointed me in the right direction. Any other suggestions would be greatly apprecianted. Thanks for all the help!
by YosemitySam
Sunday 12th Oct 2008, 11:44
Forum: CB Radio Alignments
Topic: Hookup RF Generator and Oscilloscope?? Help PLEASE.
Replies: 6
Views: 7448

Thanks timrim, I have the probe. So, do you connect it direct to PL259? Do I need a dummy load for RF output measurements or just the probe & Oscope? Thanks!!
by YosemitySam
Saturday 11th Oct 2008, 14:14
Forum: CB Radio Alignments
Topic: Hookup RF Generator and Oscilloscope?? Help PLEASE.
Replies: 6
Views: 7448

Hookup RF Generator and Oscilloscope?? Help PLEASE.

I have been reading about Generators and Oscilloscopes. But, I am not having much luck finding what type of probes to use. I know that for recieve alignment you input RF into antenna and connect Oscope to speaker with 8ohm load. But, not sure how to hook up to show modulation. I assume of corse I wi...
by YosemitySam
Thursday 21st Aug 2008, 9:19
Forum: CB Radio Repair and Troubleshooting
Topic: No power to channel Readout?
Replies: 7
Views: 5087

Hey fella's. Thanks for all the info and tech help on this. After all your input and help, I final located the problem after finding a schematic I found that Ramblingman and Rick are right on the money. The power to tr41 comes from the on off switch. What was confusing is. The switch was good and I ...
by YosemitySam
Friday 1st Aug 2008, 14:26
Forum: CB Radio Repair and Troubleshooting
Topic: No power to channel Readout?
Replies: 7
Views: 5087

My Volt Ohm Meter was bad. Got new one now. tr51 Base 13.76 v.d.c. Collector 0 v.d.c. Emitter 13.32 v.d.c TR41 Base 0 v.d.c. Collector 0 v.d.c. Emitter 0 v.d.c IC8 has 0.0 volts at every pin. Can't find any voltage to TR41 and it is newly replaced. D93 checks ok. I am still learning and open to any ...
by YosemitySam
Tuesday 22nd Jul 2008, 12:52
Forum: CB Radio Repair and Troubleshooting
Topic: No power to channel Readout?
Replies: 7
Views: 5087

Thanks, ramblingman. I checked tr41 and replaced it, it had no voltage anywhere. There is voltage and tr51 Base 8.5 v.d.c. Collector 0 v.d.c. Emitter 8.7 v.d.c witch doesn't make sence to me. I think maybe my VOM is bad. I will have to check it out tomarro and try again. I replaced tr41 anyway. But,...
by YosemitySam
Friday 18th Jul 2008, 11:23
Forum: CB Radio Repair and Troubleshooting
Topic: Old style Connex Echo Hookup?
Replies: 4
Views: 3560

THanks SmokinJoe, That's It!!! That's what I needed!!
by YosemitySam
Thursday 17th Jul 2008, 16:46
Forum: CB Radio Repair and Troubleshooting
Topic: Old style Connex Echo Hookup?
Replies: 4
Views: 3560

Old style Connex Echo Hookup?

I have several old style Connex Echo boards I would like to use on four pin cobra's and such. Does, anyone know how these hookup. Or mybe direct me to some instructions on how to install them. I use to know how. But, have forgoten how and can't find my install Info. These have Red, Black which I'm s...
by YosemitySam
Thursday 17th Jul 2008, 16:19
Forum: CB Radio Repair and Troubleshooting
Topic: No power to channel Readout?
Replies: 7
Views: 5087

No power to channel Readout?

I have no power to channel readout on a Galaxy 77hml. But, there is power to chanel meter. Does not TX or RX. What are the possible causes? Thanks Fella's!!
by YosemitySam
Thursday 17th Jul 2008, 16:15
Forum: CB Radio Repair and Troubleshooting
Topic: Audio Transformer Get Hot?
Replies: 12
Views: 7778

Thanks fella's for all the reply's! I have replaced all resistors that need to be, replaced. Replaced power tranformer. On this board the c-51 andc-52 are c-90 and c-91 I will check those as well. The choke I refured to is L4 this must be another version than the one Ramblingman is refuring to but, ...
by YosemitySam
Friday 11th Jul 2008, 13:40
Forum: CB Radio Repair and Troubleshooting
Topic: Audio Transformer Get Hot?
Replies: 12
Views: 7778

Well, I replaced the Power Transformer, I have also found a few over heated resistors R69, R54, R66, R158, R6, On to replacing those now. Can't power up until I find out If I switched the wires on the on/off switch. Still haven't found a schematic. Oh, I also don't know what L4 choke value is, It wa...
by YosemitySam
Wednesday 9th Jul 2008, 12:35
Forum: CB Radio Repair and Troubleshooting
Topic: Audio Transformer Get Hot?
Replies: 12
Views: 7778

PLL LC7120, IC KIA7217AP not sure about ref numbers yet. Has a HI, CB, and Low swith. Okay, I have checked Final and It is okay. Turns out I was looking at the Power transformer instead of audio. If I had a schematic it would have been more spottable. Sorry, I'm still new and learning. Keying diodes...
by YosemitySam
Sunday 29th Jun 2008, 4:00
Forum: CB Radio Repair and Troubleshooting
Topic: Audio Transformer Get Hot?
Replies: 12
Views: 7778

Thanks for the reply guy's. After surching high and low I cannot find a schematic any place. If any one happen to have one. It would be a great help if you would post it or mail it to me. As far as the fuse it is a 2 amp and it will not blow I even change it thinking the fuse is marked wronge. Still...

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