Search found 11 matches

by jstahnke
Tuesday 5th May 2009, 12:14
Forum: CB Radio Repair and Troubleshooting
Topic: Cobra 150 gtl dx with NO receive?!?!?!?
Replies: 0
Views: 1415

Cobra 150 gtl dx with NO receive?!?!?!?

Radio Make and Model: Cobra 150 gtl dx PCB Number: PLL Number: Test gear available: watt, swr, multimeter, soldering equip, miscellanious parts. Symptoms: Radio wont receive any signals, only static across every channel (even ch. 19) It would be a whole lot easier if i had a freq counter, but unfort...
by jstahnke
Thursday 30th Apr 2009, 8:57
Forum: CB Radio Modifications
Topic: Bluetooth echo? is it possible?
Replies: 0
Views: 1360

Bluetooth echo? is it possible?

I see Cobra has a new version of the 29 series with bluetooth, and it got me wondering how it would be possible (if at all) to add echo, or reverb? Any ideas? Im guessing it would be easiest wired internally, but a small echo box just outside the microphone connector would be much more fun to build....
by jstahnke
Thursday 30th Apr 2009, 8:52
Forum: Tech Area
Topic: Echo on a bluetooth microphone???
Replies: 0
Views: 1704

Echo on a bluetooth microphone???

I see Cobra has a new version of the 29 series with bluetooth, and it got me wondering how it would be possible (if at all) to add echo, or reverb? Any ideas? Im guessing it would be easiest wired internally, but a small echo box just outside the microphone connector would be much more fun to build....
by jstahnke
Thursday 30th Apr 2009, 0:34
Forum: CB Radio Modifications
Topic: Browning eagle mark III extra channels mod?
Replies: 0
Views: 1590

Browning eagle mark III extra channels mod?

Hey guys, i consider myself pretty knowledgable in solid state equipment, but i am BRAND NEW to the world of Tube rigs. I recently purchased a browning golden eagle mark III, My question...is it possible to add channels above ch. 23 on this radio??? If so, how do i do this, Thanks a ton in advance!!...
by jstahnke
Monday 8th Sep 2008, 1:28
Forum: CB Radio Modifications
Topic: Ranger RCI - 2950 Replacement bulbs?
Replies: 1
Views: 2145

Ranger RCI - 2950 Replacement bulbs?

Do i need to do anything specific to change my stock 2950 display bulbs to blue LED'S or just throw them in place? Thanks!
by jstahnke
Monday 11th Aug 2008, 9:44
Forum: CB Radio Repair and Troubleshooting
Topic: Sommerkamp ts-2000dx no tx audio (same as old rci 2950)
Replies: 14
Views: 7152

OK, So i didnt have an extra pair of headphones around, but i can tell there is some sort of audio output because i can here myself very lightly when in PA mode. I temporarily removed q32 (made no difference) and c141 is working sufficiently. the readings taken from the ic16 is as follows: pin 1 = 2...
by jstahnke
Sunday 10th Aug 2008, 13:44
Forum: CB Radio Repair and Troubleshooting
Topic: Sommerkamp ts-2000dx no tx audio (same as old rci 2950)
Replies: 14
Views: 7152

OK, so i checked the voltages on most of the mic audio circuit, and they seems to be severely out of wack starting as soon as the IC16 mic audio amp. Does anyone have any ideas on if maybe this chip should be replaced? I have been lookin ALL OVER the internet for the pinout info for ic16 (JRC4558D) ...
by jstahnke
Saturday 2nd Aug 2008, 5:19
Forum: CB Radio Repair and Troubleshooting
Topic: Sommerkamp ts-2000dx no tx audio (same as old rci 2950)
Replies: 14
Views: 7152

Thanks alot for the charts, one glance and i see that those wires ARE cut from the factory. Id still be fumbling around without your help. Anyway, i prdered a new multimeter and tools on ebay, and as soon as they get here in the next day or two, i guess ill just start tracing the whole TX audio circ...
by jstahnke
Friday 1st Aug 2008, 8:25
Forum: CB Radio Repair and Troubleshooting
Topic: Sommerkamp ts-2000dx no tx audio (same as old rci 2950)
Replies: 14
Views: 7152

The wires snipped are the black wire from the 3-pin PCB jack on the mic board (which goes to a board mounted to the front panel board) and a yellow wire coming from the 2-pin PCB jack directly above the previously mentioned 3-pin jack. (I traced this back to the same area as the other snipped wire o...
by jstahnke
Wednesday 30th Jul 2008, 7:46
Forum: CB Radio Repair and Troubleshooting
Topic: Sommerkamp ts-2000dx no tx audio (same as old rci 2950)
Replies: 14
Views: 7152

Re: TS-2000DX No TX audio

Yea, it is putting out a signal, just no modulation, Thanks alot for the help!


Rick wrote:Do you have a TX carrier on AM and FM mode?
Is it just case of no TX audio on any mode.
Also please read the info on the link below
www.radiomods.co.nz/forum/viewtopic.php?t=312
by jstahnke
Wednesday 30th Jul 2008, 6:03
Forum: CB Radio Repair and Troubleshooting
Topic: Sommerkamp ts-2000dx no tx audio (same as old rci 2950)
Replies: 14
Views: 7152

Sommerkamp ts-2000dx no tx audio (same as old rci 2950)

I have been off air for about 10 yrs and recently bough this radio off ebay. It rx's fine, but no tx in any mode???? I used to tinker around inside radio's , but im pretty rusty. One thing i noticed upon opening was that 2 of the 3 jacks that plug into the mic pcb have 1 wire snipped at the base. Is...

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