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Search results

  1. OldTech03

    Looking for a Modulation Meter for a GE Super Base CB Base Station

    Like Nomad I try not to work on radios anymore that I know it will be a real problem to find parts for, That being said I think if you still have the original meter you may be able to find that type meter in another radio and you can remove the face behind the needle and place it another meter I...
  2. OldTech03

    What electronics have YOU fixed lately?

    Wow have not done this for a bit. The below list is partial but all have been repaired in the last several weeks and have an old galaxy base on the bench right now. SBE LAND COMMAND LCBS-8 COBRA 142 GTL FOR A MAN IN OREGON COBRA 2000 GTL COBRA 148 GTL (X) 4 1 PILL MOBILE AMP 2 PILL MOBILE AMP...
  3. OldTech03

    I found this old Centurion, says it's 45 watts input!

    The 45 watts is most likely the Power Supply rating not the RF.
  4. OldTech03

    Galaxy DX 94HP Big Rig will not power on...

    With my credentials that I will not go into you would think I would be able to find all problems in a matter of minutes but NO! that isn't the way it works. I have been guilty of jumping to the end of line only to say Ok Dennis this isn't working so do like you taught it in Tech School and that...
  5. OldTech03

    Galaxy DX 94HP Big Rig will not power on...

    Well yes, a cap could cause issues like that, what I was wondering is if the only current spike he seen was 20 milliamps it most likely would not be a cap shorting a regulated source down to nothing. I'm kind of in the bad solder issue of some kind if the switch is not the issue. We will see...
  6. OldTech03

    Galaxy DX 94HP Big Rig will not power on...

    If the power switch is the problem simply put a test probe on the switched side, turn on the switch if you have power on both sides of the switch then on to other issues. If it is a capacitor that would also be easy to track down especially if voltage is being supplied to the board one would...
  7. OldTech03

    Is there anyone in the Hot Springs Arkansa area that works on cb radios?

    If you remember I did ask you if you had that switch on? Good that is that it was.
  8. OldTech03

    Is there anyone in the Hot Springs Arkansa area that works on cb radios?

    Ok, best I can remember the filament voltage is mostly isolated from the rest of the radio simply meaning there is either a break in the voltage supply or the heater switch is faulty or there is an issue in the AC line plug that connects pin 9 to pin 11 which in turn delivers the 12.6 vac to the...
  9. OldTech03

    Is there anyone in the Hot Springs Arkansa area that works on cb radios?

    I assume the heater switch on the front is on? Just making sure.
  10. OldTech03

    Is there anyone in the Hot Springs Arkansa area that works on cb radios?

    Does it Receive? The reason I ask this is because there should be an accessory plug in the back next to the SO239 antenna plug if it's missing it will not allow the tubes to get filament voltage if the seller is a tech he may have done a cold neutralization adjustment and forgot to put the plug...
  11. OldTech03

    Is there anyone in the Hot Springs Arkansa area that works on cb radios?

    I have worked on hundreds of these over the last 50 years but when you say shipping damage what are the problems physical/electrical or both? I'm in Iowa just for the record.
  12. OldTech03

    Remember when you got a free mobile

    Well, I read through its entirety and really didn't find any factual errors it's pretty straightforward forward I have been repairing since about 1969 and have with maybe a few short years in the commercial field but it seems pretty accurate. Of course, one could argue that there is much more...
  13. OldTech03

    Remember when you got a free mobile

    Citizen Band (CB) radios have played a significant role in communication over the years. These radios, operating in the CB radio spectrum, have been used by people around the world for various purposes. In this essay, we will explore the history, uses, and impact of Citizen Band radios. Citizen...
  14. OldTech03

    CB Tricks site UPDATES/THREAD MERGERS

    I just got on CBTricks seems to be working fine
  15. OldTech03

    Magnum S680 29.090mhz only

    Well, you can't even begin until you reinstate control panel voltages and get the displays working and when you do you may find the radio coming back to life. You may find a bad connection or switch or something but first fix the lights.
  16. OldTech03

    Workman noise filter

    So is the noise the fan or is the noise there when the fan is turned off and then when you turn the fan on high the noise increases? If you have any ground looping in the antenna system or the DC power distribution those will all add to the issue. Now if the alternator is the issue and any of...
  17. OldTech03

    Workman noise filter

    How do you know the alternator is making the noise? Next, it is very hard to control noise being generator by using a long wire with a suppressor that far from the Alternator if there were any chance of doing that it would most likely need to be done at the alternator. I assume the noise you...
  18. OldTech03

    Cleaner Buffer signals on scope...

    Ok I usually only make 1 mistake a year that was 2 mistakes unless I'm counting wrong then it could be 3 mistakes, but in my defense, I don't really care where he is I just remember watching one of his videos after being made aware of his channel and I never went back for more.
  19. OldTech03

    Cleaner Buffer signals on scope...

    There are factors that can cause what you are talking about some of them are simply that the buffer stages in some radios are just dirty IE harmonically and although all IF and mixer stages in low-end radios IE "CBs" can be dirty you will most likely see a lot more of this kind of issue with the...