Search found 48 matches

by NightRanger3151
Wednesday 9th May 2012, 16:48
Forum: CB Radio Repair and Troubleshooting
Topic: Frequency counter problem
Replies: 8
Views: 8401

Re: Frequency counter problem

I tried many things to get that frequency counter working. Replaced all resistors, did all the fix's I could find online etc. Ended up just buying one on eBay that worked and put it in. Still working today.
by NightRanger3151
Sunday 26th Jul 2009, 5:03
Forum: CB Radio General
Topic: Cobra 148 mic wiring
Replies: 2
Views: 3519

Re: Cobra 148 mic wiring

148 gtl Mic Wiring
Stock
1- Audio (White)
2- Shield (bare wire)
3- Receive (Blue)
4- Sw Com (Red)
5- Transmit (Black)
by NightRanger3151
Monday 22nd Jun 2009, 20:46
Forum: CB Radio Repair and Troubleshooting
Topic: Cobra 2000 GTL Sideband Issue.
Replies: 4
Views: 3266

Re: Cobra 2000 GTL Sideband Issue.

Maybe this will help ....

Image
by NightRanger3151
Friday 19th Jun 2009, 20:56
Forum: Wanted !
Topic: Crystal needed
Replies: 1
Views: 1985

Crystal needed

Looking for a 11.1125 Mhz Crystal. Found in Cobra 140 GTL, 142 GTL, President Washington and other radios which used the MB8719 PLL.
by NightRanger3151
Wednesday 10th Jun 2009, 16:50
Forum: CB Radio Modifications
Topic: Help Cobra29ltd Classic
Replies: 5
Views: 4230

Re: Help Cobra29ltd Classic

I just had a SSB radio done for $30. But that was in Indiana. Maybe prices are different in your part of the country.
by NightRanger3151
Monday 1st Jun 2009, 17:44
Forum: CB Radio Modifications
Topic: Adding frequency counter to a 2000 gtl
Replies: 0
Views: 1620

Adding frequency counter to a 2000 gtl

Anyone ever added an external frequency counter to a Cobra 2000 GTL? The original one doesn't work. I'm wanting to add a Galaxy FC347 or FC30BT or Texas Ranger FC390 type to it. Looking for the locations where to connect the wires on the PC board. I know it's been done on the Cobra 148 gtl's, hoping...
by NightRanger3151
Thursday 21st May 2009, 9:23
Forum: CB Radio Repair and Troubleshooting
Topic: Frequency counter problem
Replies: 8
Views: 8401

Re: Frequency counter problem

I put the 1N4734 diode in D528 and it made no difference at all.
by NightRanger3151
Wednesday 20th May 2009, 11:51
Forum: CB Radio Repair and Troubleshooting
Topic: Frequency counter problem
Replies: 8
Views: 8401

Re: Frequency counter problem

Hi: Does the Frequency change when you move the selector? If not then this would point to a PLL or Power supply fault. Check the voltage on pin 9 of the MB8734 PLL chip, it should be 8v DC if not then this points to a power supply fault & you should check the MB3756 regulator etc. Apparently this i...
by NightRanger3151
Sunday 17th May 2009, 7:59
Forum: CB Radio Repair and Troubleshooting
Topic: Frequency counter problem
Replies: 8
Views: 8401

Frequency counter problem

Radio Make and Model: Cobra 2000 GTL PCB Number: Main PC-497AB PLL Number: MB 8734 Test gear available: Symptoms: Frequency Counter is stuck on 92.2000 on receive and 0.0000 on transmit. What is working: Radio works fine, except for frequency counter. What has been tried: I did the improvement on th...
by NightRanger3151
Wednesday 29th Apr 2009, 13:27
Forum: CB Radio Repair and Troubleshooting
Topic: President Adams receive problem
Replies: 1
Views: 1731

Re: President Adams receive problem

Well shoot, I thought somebody here might be able to point me in the right place to start looking. :banghead:
by NightRanger3151
Tuesday 28th Apr 2009, 9:11
Forum: CB Radio Repair and Troubleshooting
Topic: President Adams receive problem
Replies: 1
Views: 1731

President Adams receive problem

Radio Make and Model: President Adams PCB Number: PC-346 PLL Number: 858 Test gear available: Power/SWR meter, Dummy load, Analogue Multimeter, Soldering Iron and solder, De-soldering pump Symptoms: Weak receive on all bands (AM,USB,LSB) If someone is close (within a couple miles) I can hear them, b...
by NightRanger3151
Saturday 25th Apr 2009, 10:33
Forum: Wanted !
Topic: Sams Photofact
Replies: 0
Views: 1495

Sams Photofact

Wanting a Sams Photofact CB-176, March 1978 book. Thanks.
by NightRanger3151
Saturday 25th Apr 2009, 10:31
Forum: CB Radio General
Topic: How old is my radio?
Replies: 1
Views: 2708

Re: How old is my radio?

Talked to president electronics and have been able to find out from the serial number it was made in 1977.
by NightRanger3151
Friday 24th Apr 2009, 18:53
Forum: CB Radio General
Topic: How old is my radio?
Replies: 1
Views: 2708

How old is my radio?

Is there a source anybody knows of to look up production dates of radios? Or a way to find out when a radio was made? I'm mainly trying to find out when my President Adams CB radio (made in Japan) was manufactured. This is the second one I've had and I couldn't pass it up. It's in excellent shape, ...
by NightRanger3151
Thursday 12th Jun 2008, 10:12
Forum: CB Radio Repair and Troubleshooting
Topic: My CB has duplicate channels - why?
Replies: 7
Views: 4468

Thanks Dave! Your tip led me to checking all the connections from the PLL to the channel selector switch and I found two loose diodes from some pretty poor looking solder work. I fixed those two and touched up some other spots and the radio seems to be working great. Time will tell I guess. Thanks a...
by NightRanger3151
Wednesday 11th Jun 2008, 16:52
Forum: CB Radio Repair and Troubleshooting
Topic: My CB has duplicate channels - why?
Replies: 7
Views: 4468

how do you know the channels are all messed up, without a freq counter??? Because I have 4 other radios and when someone talks on the other radios down the road I can hear them on two different channels. And when I talk to them one of the channels that are messed up they don't hear me on that chann...
by NightRanger3151
Tuesday 10th Jun 2008, 17:42
Forum: CB Radio Repair and Troubleshooting
Topic: My CB has duplicate channels - why?
Replies: 7
Views: 4468

My CB has duplicate channels - why?

I have a President Adams CB. It's in great shape and doesn't look like it has ever had the case opened until I replaced a meter bulb in it. Problem is many of the channels are on wrong frequencies on both TX and RX. I'll try to clear this up better. Channels that seem to work correctly are 1 to 7 .....
by NightRanger3151
Tuesday 27th May 2008, 7:11
Forum: CB Radio Repair and Troubleshooting
Topic: No Swing on AM - Uniden PC244
Replies: 10
Views: 6163

If the power meter you are using to check this radio only measures average power, then that's probably why you're seeing backward swing... if you get a meter that reads PEP (forward swing) it might read different, your radio might not have anything wrong with it. Just a suggestion. -Exit Even if it...
by NightRanger3151
Tuesday 27th May 2008, 5:50
Forum: CB Radio Repair and Troubleshooting
Topic: No Swing on AM - Uniden PC244
Replies: 10
Views: 6163

woody wrote:what kind of mic are you useing on this radio?

I've tried different ones. Currently a RK-56.
by NightRanger3151
Monday 26th May 2008, 16:42
Forum: CB Radio Repair and Troubleshooting
Topic: No Swing on AM - Uniden PC244
Replies: 10
Views: 6163

Thanks for the reply. VR5 isn't turned down .. In fact it was turned almost all the way up and sounded as though it was over modulating. I got it to sound better by turning it down to about half way.

I've ordered another watt meter and will see what it shows. Should be here this week.
by NightRanger3151
Tuesday 20th May 2008, 9:08
Forum: CB Radio Repair and Troubleshooting
Topic: No Swing on AM - Uniden PC244
Replies: 10
Views: 6163

Not finding any cold solder points at all on this PC244. I believe I may have a bad AM regulator but not sure. Can you tell me how to check it? Have been doing some reading on some unidens that had similar problems and even found a mod on the PC122 that you could do to keep the problem from happenin...
by NightRanger3151
Monday 19th May 2008, 13:38
Forum: CB Radio Repair and Troubleshooting
Topic: No Swing on AM - Uniden PC244
Replies: 10
Views: 6163

just a thought did you check for any cold solder joints. Also check the am regulator. I would start by keying the radio and flex the board a little bit with you finger and see if you audio comes back intermittently. I would have to look at the schematic to be able to tell you much more. I will see ...
by NightRanger3151
Saturday 17th May 2008, 19:23
Forum: CB Radio Repair and Troubleshooting
Topic: No Swing on AM - Uniden PC244
Replies: 10
Views: 6163

No Swing on AM - Uniden PC244

I just picked up a used Uniden PC244 AM-SSB radio. SSB works great, but there is no forward swing on AM at all. I can set the dk (vr10) anywhere from 1/2 watt up to about 7 watts and have no forward swing when I modulate. If I turn it above 7 watts it will begin to swing backwards. The swr's on ante...
by NightRanger3151
Tuesday 1st Apr 2008, 7:46
Forum: CB Radio General
Topic: COBRA 2000 FACE PLATE
Replies: 4
Views: 4036

Debs on Ebay does them for the 2000. Just tell her what color you want and if there are any changes to the faceplate that need done such as buttons being different from modifications etc. If you just want a new black one she can do that too. It may take her a while to respond though so try and be pa...
by NightRanger3151
Saturday 22nd Mar 2008, 10:18
Forum: CB Radio Repair and Troubleshooting
Topic: Cobra 29 LTD Squelch
Replies: 8
Views: 5669

Pioneer621,

Thanks again! That worked to perfection! I have been annoyed by that ever-so-slight noise everytime it gets real quiet around that radio. I'll enjoy it more now.

You da man!

NightRanger3151

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