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  1. OldTech03

    It may seem a "strange topic" for these parts - CALIBRATION

    Well, I remember in the good ole days when the FCC had certain requirements for a CB to be on frequency now this was before PLL circuits and OCXO'S and TCXO'S were not used in any old tube CB radios and the frequency tolerance was to 20hz one way or the other and the test equipment produced for...
  2. OldTech03

    CB antenna too close to dual band antenna?

    I recently purchased a new F150 love this truck it's the 500HP version it's an all smiles and fast miles anyway I installed both the 2 meter dual bander along with a 2 meter dual band antenna on one side of the pickup it's mounted to a window bracket I made and the 11 meter antenna is mounted on...
  3. OldTech03

    Cobra 29 ltd Chrome No tx audio

    If you have an audio signal tracer or scope, follow the yellow brick audio road back to the TDA2003 you should be able to go from the Dynamike control and trace back to the mic preamp and see an audio signal on the scope or like i said an inexpensive audio signal tracer. Schematics are helpful...
  4. OldTech03

    Question

    At this moment in time, I would be leaning towards the so-called Galaxy class syndrome as Nomad so elegantly called it. I have repaired about 10 thousand Galaxy class radios over the last 35 years and can confirm they will quit at any given moment and 99% of the time it's poor-quality...
  5. OldTech03

    UNIDEN BEARCAT 880 BEEP REMOVAL

    I can show you how to get rid of it if you can unsolder a small surface mount part it will end the beep.
  6. OldTech03

    UNIDEN BEARCAT 880 BEEP REMOVAL

    I don't know if anyone cares about this one way or the other but I had a customer the other day that asked while I was repairing his 880 if I could eliminate the damn beep so after I brought it back to life I did some circuit tracking and came up with this in about 20 minutes or so.
  7. OldTech03

    uniden bearcat 880

    I don't know if anyone cares about this one way or the other but I had a customer the other day that asked while I was repairing his 880 if I could eliminate the damn beep so after I brought it back to life I did some circuit tracking and came up with this in about 20 minutes or so.
  8. OldTech03

    What electronics have YOU fixed lately?

    Now you can test all those Chicken Banders to make they are done? LOL.
  9. OldTech03

    Sams PhotoFacts Collection

    Try EXECUTIVE CTZ-100
  10. OldTech03

    Sams PhotoFacts Collection

    Thanks!! It will help in my mission to get all these antiques back online for him.
  11. OldTech03

    Sams PhotoFacts Collection

    Well I would really like to have all the pages associated with the radio I have a customer that has 6 of these and he wants them all working I have the original factory service manual but the schematics are missing so all the pages that show part locations and voltage reference locations and the...
  12. OldTech03

    Sams PhotoFacts Collection

    SAMS #63 SBE CONSOLE II
  13. OldTech03

    CB Tricks site UPDATES/THREAD MERGERS

    Ok, anytime you can do that I would be first in line. Thanks.
  14. OldTech03

    COVID 19 home tests

    My wife and I have both tested positive and could not tell the difference between a mild cold or possibly a mild case of the flew and we are not vaccinated for the flu or covid. My family also has had it and only one felt really bad and also not vaccinated.
  15. OldTech03

    I would appreciate some of those "thoughts and prayers"

    I had 3-hours of surgery on my right shoulder about 4 years ago although there was some pain it was not bad and I recovered pretty quickly that being said it may not have been as bad as your wife so I can't really give much to that but I have not had a bit of issue since and was glad to have the...
  16. OldTech03

    Paint CB mic

    If you decide to paint plastic mic covers don't use Rust-oleum it is not for this kind of project. Krylon fusion or not is the only brand to use for this I do a lot of this kind of work when restoring items and have tried it all. I would also preheat the paint and the plastic as much as you can...
  17. OldTech03

    Do I have a splatterbox ?

    Don't forget the possibility of some types of CB's and how broad-banded they are and simply can't handle signals overloading the front end of the receiver which would greatly affect the ability of the receiver to sort those signals out. I'm not advocating that his radio isn't producing harmonics...
  18. OldTech03

    Dissatisfied eBay customer ...

    Let him contact eBay and then ask the idiots at eBay if they have any clue what a capacitor is and how it's being rated at more than 12v would make them illegal ? When you don't get an answer because they have no F*****g clue tell the caps came from Wuhan china and have been infected with a new...
  19. OldTech03

    A minor vent...

    Ok, so you say there is no 7.5 signal getting to the mixer?
  20. OldTech03

    A minor vent...

    Well solid-state circuits can be a real funhouse at times and I have been working on them for over 50 years and although I have learned a lot over the years every once in a while I get one that is just not following my idea of how it should just jump up and say hear I am fix me. Tube circuits...