Image

Cobra 138 XLR, 140 GTL and 146 GTL

Have some other technical questions can't find the answer for? Come in and ask them here.

Moderator: JR Moderator

User avatar
KDDL
Skipshooter
Skipshooter
Posts: 263
Joined: Monday, 03 January 2011, 6:05 AM
Radio: All President's
Antenna: Sirio 4 element
Location: Kirkenes Norway

Cobra 138 XLR, 140 GTL and 146 GTL

Post by KDDL » Wednesday, 13 April 2011, 11:28 AM

I would like to know more about these radios, positive and negative things.
20WR4040




User avatar
Polish Eagle
Duckplucker
Duckplucker
Posts: 132
Joined: Friday, 04 February 2011, 8:19 AM
Radio: RCI2950, Cobra 2000
Antenna: IMAX 2000
Name: David
Location: making love County, NJ

Re: Cobra 138 XLR, 140 GTL and 146 GTL

Post by Polish Eagle » Wednesday, 13 April 2011, 11:57 AM

I have a 138XLR purchased in 1977..Was into CB for some time but around 1985 or so it went into a box...pulled it out of the basement a few months ago and for kicks and giggles wanted to see if it worked and what was happening out on the frequencies....low and behold it works as good as the day it was boxed over 25 years ago! Caught the bug again and recently installed a IMAX....having fun on the air with a bunch of locals...SSB has been quiet around here..never had an issue with the radio...DK around 7 watts and SSB swings to about 30ish...I know I had a 139 also, just too many boxes to sort thru..
Polish Eagle / NJ 818
Base Radios
Cobra 2000
RCI 2950DX, Uniden Washington, Cobra 139XLR
D-104 Silver Eagle
Turner Plus Three
Mobile Radios
Cobra 139XLR
Cobra 29
Galaxy 979
Uniden 520
Wilson 1000

In the "Jersey" hills



User avatar
KDDL
Skipshooter
Skipshooter
Posts: 263
Joined: Monday, 03 January 2011, 6:05 AM
Radio: All President's
Antenna: Sirio 4 element
Location: Kirkenes Norway

Re: Cobra 138 XLR, 140 GTL and 146 GTL

Post by KDDL » Wednesday, 13 April 2011, 12:05 PM

Thanks :icon_e_smile: Is it stable on frequency? How is the receiver? I guess this radio have D858 chip.
20WR4040



User avatar
Polish Eagle
Duckplucker
Duckplucker
Posts: 132
Joined: Friday, 04 February 2011, 8:19 AM
Radio: RCI2950, Cobra 2000
Antenna: IMAX 2000
Name: David
Location: making love County, NJ

Re: Cobra 138 XLR, 140 GTL and 146 GTL

Post by Polish Eagle » Wednesday, 13 April 2011, 12:26 PM

a little bit of noise with receive but gets out on frequence well...
Polish Eagle / NJ 818
Base Radios
Cobra 2000
RCI 2950DX, Uniden Washington, Cobra 139XLR
D-104 Silver Eagle
Turner Plus Three
Mobile Radios
Cobra 139XLR
Cobra 29
Galaxy 979
Uniden 520
Wilson 1000

In the "Jersey" hills



User avatar
TheCBDoctor
Sponsor
Sponsor
Posts: 2811
Joined: Friday, 13 March 2009, 13:54 PM
Radio: HR 2510
Name: Rick
Referrals: 4
Contact:

Re: Cobra 138 XLR, 140 GTL and 146 GTL

Post by TheCBDoctor » Wednesday, 13 April 2011, 15:57 PM

KDDL wrote:I would like to know more about these radios, positive and negative things.

The Cobra 140 GTL and the Cobra 142 GTL are the exact same chassis except the Cobra 142 is in a Base Station package. The Cobra 138 XLR is a D-858 chassis. The other two are MB-8719 chassis'.

These two chassis' are completely different. I prefer the Cobra 142 or 140 GTL. They are simpler in design and are easier to repair. All three radios have excellent receive and transmit.

http://thecbdoctor.net/_mgxroot/page_11083.html The Cobra 140 GTL

http://thecbdoctor.net/_mgxroot/page_10783.html The Cobra 142 GTL

http://thecbdoctor.net/_mgxroot/page_11003.html The Cobra 138 XLR

Respectfully,
Best Regards,

Rick, The CB Doctor


OFFICIAL SPONSOR - http://www.thecbdoctor.net/" onclick="window.open(this.href);return false;
Image




User avatar
Eskimo_Pie
Skipshooter
Skipshooter
Posts: 315
Joined: Thursday, 18 February 2010, 9:18 AM
Radio: Grant XL/HR2510
Name: Greg
Location: SW Coastal Maine

Re: Cobra 138 XLR, 140 GTL and 146 GTL

Post by Eskimo_Pie » Wednesday, 13 April 2011, 20:54 PM

I have a 140 GTL, the board is made by Uniden and the 8719 PLL chip is a Seimens as opposed to a Fujistu like in the later 148's. There is a symbol "S" enclosed in a circle on the PLL. I believe the 146 has a different PLL all together, memory does not work that well, brain matter being replaced by grey hairs......UPD2824 maybe? It has to be changed out to a 2816 for freq mods.

The 140 is a nice and simple radio, but wish it had a Mic Gain knob, (aka Dynamike in Cobra speak). I haven't had a chance to use it since it's off frequency and needs a good tune up. I was lucky to score a pretty mint one off of eB@y, no mods or golden screw driver hacks, no scratches on the chrome whatsoever, top and bottoms are scratch free, knobs were not all grimy like you would see on some 30+ year old rigs and the last time the covers were off was when it was being assembled at the plant in Taiwan, I was very happy to score one. Mine came with everything but the original box. There's another cb radio site on the net that does reviews, I don't know if I can say what the site is, just g00gle "140GTL review" check out the first result, and you'll be surprised at how well the reviewer rates it.

73's
9-7-1 Coastal Maine Mobile usually hanging out on 38 LSB
At the home QTH, Uniden Madison/Realistic TRC 457
In the mobile, HR2510/Grant XL



User avatar
Eskimo_Pie
Skipshooter
Skipshooter
Posts: 315
Joined: Thursday, 18 February 2010, 9:18 AM
Radio: Grant XL/HR2510
Name: Greg
Location: SW Coastal Maine

Re: Cobra 138 XLR, 140 GTL and 146 GTL

Post by Eskimo_Pie » Wednesday, 13 April 2011, 21:00 PM

Just to add more about my 140GTL, The CB Doctor, Rick is great!! :cheers:

Here's is replies about my particular 140 GTL
viewtopic.php?f=8&t=34357#p280471
9-7-1 Coastal Maine Mobile usually hanging out on 38 LSB
At the home QTH, Uniden Madison/Realistic TRC 457
In the mobile, HR2510/Grant XL



User avatar
Radio Pig
Duckplucker
Duckplucker
Posts: 103
Joined: Sunday, 23 January 2011, 1:03 AM
Radio: Galaxy DX-959
Antenna: Pigs Tail
Name: John

Re: Cobra 138 XLR, 140 GTL and 146 GTL

Post by Radio Pig » Wednesday, 13 April 2011, 21:53 PM

I just purchased a Cobra 140 GTL in like new condition a couple of months ago off of craigslist for $60. The guy I got it from told me that his dad bought it new in 1977 or 78 and only had it hooked up a few months and appently he died. The cobra then went into storage and wasn't gotten out until recently. When i got it, it was in littrally brandnew condition and works great. Get your hands on a 140 GTL and I think you will like it.

User avatar
KDDL
Skipshooter
Skipshooter
Posts: 263
Joined: Monday, 03 January 2011, 6:05 AM
Radio: All President's
Antenna: Sirio 4 element
Location: Kirkenes Norway

Re: Cobra 138 XLR, 140 GTL and 146 GTL

Post by KDDL » Thursday, 14 April 2011, 4:07 AM

I also find a 148 GTL made in Malaysia for a resonable price. Maybe this one also can be a good radio.
20WR4040



User avatar
Eskimo_Pie
Skipshooter
Skipshooter
Posts: 315
Joined: Thursday, 18 February 2010, 9:18 AM
Radio: Grant XL/HR2510
Name: Greg
Location: SW Coastal Maine

Re: Cobra 138 XLR, 140 GTL and 146 GTL

Post by Eskimo_Pie » Thursday, 14 April 2011, 5:07 AM

KDDL wrote:I also find a 148 GTL made in Malaysia for a resonable price. Maybe this one also can be a good radio.
I'd recommend either a Taiwan or Philippines version 148, I had a Malaysia ves, no problems, but quality isn't as good as the earlier versions. Also consider the 148's cousin, Uniden Grant XL Philippines. My 2¢'s

73's

Greg
9-7-1 Coastal Maine Mobile usually hanging out on 38 LSB
At the home QTH, Uniden Madison/Realistic TRC 457
In the mobile, HR2510/Grant XL



User avatar
KDDL
Skipshooter
Skipshooter
Posts: 263
Joined: Monday, 03 January 2011, 6:05 AM
Radio: All President's
Antenna: Sirio 4 element
Location: Kirkenes Norway

Re: Cobra 138 XLR, 140 GTL and 146 GTL

Post by KDDL » Thursday, 14 April 2011, 7:54 AM

Thanks. I have looked at some 148's, but many times I think they ended up in prices to high for me, especially when I also have to pay for shipping overseas.
If I wanna buy a 148, I will go for those who is Taiwan or Philippines version.


Heeyyyy... I'm upgraded to duckplucker :icon_e_smile:
20WR4040



User avatar
TheCBDoctor
Sponsor
Sponsor
Posts: 2811
Joined: Friday, 13 March 2009, 13:54 PM
Radio: HR 2510
Name: Rick
Referrals: 4
Contact:

Re: Cobra 138 XLR, 140 GTL and 146 GTL

Post by TheCBDoctor » Thursday, 14 April 2011, 19:24 PM

Eskimo_Pie wrote:I have a 140 GTL, the board is made by Uniden and the 8719 PLL chip is a Seimens as opposed to a Fujistu like in the later 148's. There is a symbol "S" enclosed in a circle on the PLL. I believe the 146 has a different PLL all together, memory does not work that well, brain matter being replaced by grey hairs......UPD2824 maybe? It has to be changed out to a 2816 for freq mods.



73's
Hi,

The Cobra 146 GTL is very similar to the Uniden PC-244 except the 146 GTL needs a Mic to hear the receive. The PC-244 and PC-122 are the only domestic CB's I know that use electronic switching on board instead of switching through the Mic.

The PLL is a uPC-2824, which is similar to the PLL used in Cobra 29 LTD except it does not have a 455 KHz offset feature. The 29 LTD shifts down by 455 KHz in the receive mode. The Cobra 146 GTL does not. The Cobra 146 GTL needs a kit for channel expansion.

http://thecbdoctor.net/_mgxroot/page_11068.html Cobra 146 GTL

http://thecbdoctor.net/_mgxroot/page_11093.html Cobra 29 LTD history.....How it works

Respectfully,
Best Regards,

Rick, The CB Doctor


OFFICIAL SPONSOR - http://www.thecbdoctor.net/" onclick="window.open(this.href);return false;
Image




Post Reply Previous topicNext topic

Who is online

Users browsing this forum: No registered users and 1 guest