Search found 20 matches
- Tuesday 10th Jul 2012, 23:20
- Forum: CB Radio Repair and Troubleshooting
- Topic: Frequency counter problem
- Replies: 8
- Views: 18666
Re: Frequency counter problem
It copuld be a cap problem. They are a PITA to replace. They are thru plated with sleeves thru the board. So you have to be careful or you will pull the sleeves out and have a open connection. I HATE re-capping the freq counters, but as old as they are now, the counters and P/S need to be done
- Tuesday 10th Jul 2012, 23:17
- Forum: CB Radio Repair and Troubleshooting
- Topic: Galaxy DX-949 1 watt output
- Replies: 1
- Views: 4779
Re: Galaxy DX-949 1 watt output
Did you check the voltage/bias on the final mosfets? If these are wrong, too much voltage will over drive and destroy and too little will under power the radio
- Tuesday 5th Jun 2012, 18:50
- Forum: CB Radio Repair and Troubleshooting
- Topic: Voltage dropping out when checking 2SB754
- Replies: 1
- Views: 4533
Re: Voltage dropping out when checking 2SB754
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- Tuesday 5th Jun 2012, 18:47
- Forum: CB Radio Repair and Troubleshooting
- Topic: Voltage dropping out when checking 2SB754
- Replies: 2
- Views: 6253
Re: Voltage dropping out when checking 2SB754
Do you have a older vtvm that you could use? I have found that some of the newer meters will give false reading as they load resistance/capacitance when they read. I have and old Health kit VTVM and that is what I use most of them, unless I am out in a mobile checking stuff, the a portable meter is ...
- Tuesday 5th Jun 2012, 18:39
- Forum: CB Radio Repair and Troubleshooting
- Topic: Pres. jackson 2sc2166 self distruction
- Replies: 15
- Views: 20166
Re: Pres. jackson 2sc2166 self distruction
Yes..My friend, i have already checked the pinout connection for the 2sc1969 and it's correct, also for the thermal diode seems ok. :? Today, in my mind is born a new question : Why have you don't checked the capacitors between driver and final stage !? :?: And, what about the bias current for the ...
- Sunday 13th May 2012, 0:29
- Forum: Tech Area
- Topic: Schottky Diodes
- Replies: 1
- Views: 5646
Re: Schottky Diodes
A lot of times when you replace the diodes, you will not think there is a difference until you get to where there is no skip. Then you will wonder if the radio is dead as it will go so quiet. Yes, this DOES work, at least on the PC122. I've done it and then thought there was something wrong as it wa...
- Sunday 13th May 2012, 0:27
- Forum: CB Radio Repair and Troubleshooting
- Topic: Pres. jackson 2sc2166 self distruction
- Replies: 15
- Views: 20166
Re: Pres. jackson 2sc2166 self distruction
I know this sounds super simple, but are you sure that the mounting hardware is not shorting to ground. 50ma is what your bias should be.
- Wednesday 9th May 2012, 15:42
- Forum: CB Radio Repair and Troubleshooting
- Topic: Robyn SB-540D Microphone
- Replies: 1
- Views: 4380
Re: Robyn SB-540D Microphone
1 - Audio
2 - Shield
3 - Transmit
4 - Ground
Also add a .01 cap in series with the white lead
2 - Shield
3 - Transmit
4 - Ground
Also add a .01 cap in series with the white lead
- Wednesday 9th May 2012, 15:38
- Forum: CB Radio Repair and Troubleshooting
- Topic: Frequency counter problem
- Replies: 8
- Views: 18666
Re: Frequency counter problem
I've seen a few 2000's that act this way. If all goes back to the power supply. These are built with a power supply that is capable of running the radio, but when peaked, it is lacking. Then the power supply also lacks and due to low voltage, parts tend to fail. I bought a Madison that the clock was...
- Thursday 23rd Feb 2012, 19:05
- Forum: CB Radio Modifications
- Topic: Cobra 19 Ultra iii
- Replies: 4
- Views: 22885
Re: Cobra 19 Ultra iii
Not alot to be done with these.
LT1 wil adjust power NO MODULATION
RVM1 is modulation pot
LT1 wil adjust power NO MODULATION
RVM1 is modulation pot
- Thursday 23rd Feb 2012, 18:51
- Forum: CB Radio Repair and Troubleshooting
- Topic: scarce?
- Replies: 5
- Views: 11562
Re: scarce?
You have the long model number?
- Thursday 28th Feb 2008, 16:48
- Forum: CB Radio Modifications
- Topic: What is a good 11meter cb radio to mod
- Replies: 13
- Views: 19657
- Tuesday 15th Jan 2008, 11:12
- Forum: CB Radio Modifications
- Topic: Looking for Cherokee Nighteider 150 mods
- Replies: 3
- Views: 7296
- Wednesday 9th Jan 2008, 9:47
- Forum: CB Radio Modifications
- Topic: Looking for Cherokee Nighteider 150 mods
- Replies: 3
- Views: 7296
- Friday 4th Jan 2008, 18:44
- Forum: CB Radio Modifications
- Topic: Looking for Cherokee Nighteider 150 mods
- Replies: 3
- Views: 7296
Looking for Cherokee Nighteider 150 mods
I tried the search function but couldn't find anything on the Nightrider 150 as far as channel mods and other mods go. I just won one off of E-Bay and wondered what its capable of doing. It has the MC145106 chip same as the newer 148GTL-DX but without the 2 adder chips.. Any help will be appreciated...
- Wednesday 31st Oct 2007, 12:37
- Forum: CB Radio Modifications
- Topic: Washington (8719)
- Replies: 2
- Views: 6083
Re: Washington (8719)
Good day people. I recently purchased a RM200P amp. When connected to my Washington I get a DK of about 50 watts. When I start talking the watt meter swings backward peaking at 25 watts. Anyone have an idea as to what causes this to happen? The SWR on the system is exceptionally low with the amp of...
- Wednesday 31st Oct 2007, 12:32
- Forum: CB Radio Modifications
- Topic: secret of the almighty loud mouth supertalk kit////
- Replies: 13
- Views: 26448
Mod kits? Is there anyone out there old enough to remember before mod kits. Never used one myself but I have not run across any cb I could not get to talk a little louder and I do not remember all the bleed over problems that I started seeing after the kits became popalar. If you need more than tha...
- Wednesday 31st Oct 2007, 12:22
- Forum: CB Radio Modifications
- Topic: need help wondering if cds i ordered are any good
- Replies: 1
- Views: 4332
- Wednesday 31st Oct 2007, 12:21
- Forum: CB Radio Modifications
- Topic: madison
- Replies: 1
- Views: 4744
- Wednesday 31st Oct 2007, 12:17
- Forum: CB Radio Modifications
- Topic: What is a good 11meter cb radio to mod
- Replies: 13
- Views: 19657