AUTRONIC-EYE: 1952 CLASSIC CAR ACCESSORY - GM Chevrolet Vacuum Tubes - Part 1 Initial Diagnosis [4K]

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  • Опубліковано 22 гру 2024

КОМЕНТАРІ • 17

  • @hestheMaster
    @hestheMaster Рік тому +1

    Saw the article on the post 1954 version at jalopyjournal with lots of imformation on that system. It is great to have the
    original tech material for yours as it is a little different especially where the high voltage and some connections to the
    amp were concerned. Thanks for showing it.

    • @PracticallyFixed
      @PracticallyFixed  Рік тому +1

      Hi Steve, yes, I saw the excellent posts by 'Abomination' there. Interesting also to read the history of Guide Lamp Company at various sites. The unit in this video is apparently the original design with the light entering the photocathode from the side, hence the photomultiplier turned perpendicular to the light (details of that to follow in another video). Shortly thereafter a tube seems to have become available with the light designed to enter the end, such as the one you described. That led to a more streamlined design, and even an adjustable sensitivity the driver could adjust while driving. Later innovations in photocells led to the designs used through the 80s. Looking at some of the material Abomination shows seems to indicate a plug receptacle at the amplifier unit in a slightly later revision, which would be a great improvement to the wire connection issue I identified here. I am laboring to get the editing of the next part done. I am cutting out literally hours of video. Thanks for the comment.

  • @ElectromagneticVideos
    @ElectromagneticVideos Рік тому +1

    Its amazing to see somthing with tubes so clean - your so lucky to have a nos one. And what "space age" technology as it would have been considered back then.
    My first thought was those things cant possibly last very long. But unless someone did a lot of night driving, it probably got way less running hours than a tube+vibrator car radio so probably lasted a lot longer. I wonder how service of that sort of thing was handled. Certainly not something a mechanic of those days could fix - maybe swap the whole module or maybe each dealer would have an arangement with a local Radio and TV repair place?
    Interesting video! Thanks for posting it!

    • @PracticallyFixed
      @PracticallyFixed  Рік тому +1

      Thanks, stay tuned for the next part coming up, it gets better I think. We saw in the manual for the Chevrolet radio I posted recently that customers could expect "many months of uninterrupted service"! As shown in this video the dealerships had a repair manual which gave information on changing tubes and some basic items and also includes some Troubleshooting information coming up in the next video on this project. They were trained about the high voltage issue at the dealers, I would hope. I once saw a film made for car dealership hands on servicing tube radios. The repair manual I have for the Chevrolet radio even had signal tracing instructions through the RF/IF stages, so they probably had a "radio-guy" in the shop. A lot of folks knew their way around tube gear in those days with tube testers in every drug store. Dad and I did the run with a box of tubes from the TV every few months it seemed in the 60s and 70s, and that was how I fixed the first TV I owned in 1980. But these tubes were only labeled with GM part numbers so it was definitely a dealer-only type repair. Thanks very much for the comment! See you in Part 2.

    • @ElectromagneticVideos
      @ElectromagneticVideos Рік тому +1

      @@PracticallyFixed How intersesting! I'll amazed the car dealers would have had a "radio guy" but it makes sense as more and more cars back they would have had radios and it would have been a lucrative business as only the the richer customers would have had car radios in the tbe era.
      Tube TVs - we have seem to have most the same history with them - like you I remember going with my Dad to the drugstore to use the tube tester which fascinated me. In the early 80s when I was in high-school I used to fix old junked tube TVs and sell them. Actually got a surplus tube tester kit, built it and used it extensivly becuase the drug store tube testers were pretty much gone by then.
      I'll look forward to part 2!

  • @DERB_Seymour_Indiana
    @DERB_Seymour_Indiana Рік тому +1

    Interesting circuit analysis. I'm surprised a similar updated device in not more common these days given the computer systems in vehicles these days.

    • @PracticallyFixed
      @PracticallyFixed  Рік тому

      Hi Doug, thanks. Yes that's true. With the way those self-driving cars detect objects, people, traffic lights, etc. I bet you are right. Part 2 is coming up in a few days - working on it now. Thanks for the comment.

  • @tigerelectronics5966
    @tigerelectronics5966 Рік тому +2

    Vibrators getting stuck from sitting is a very common issue, the contacts get tarnished. gotta open them up, clean the contacts with some light sandpaper, and put back together and they will usually run again :) I have saved plenty of vibrators that were stuck, all of them working happily :)

    • @PracticallyFixed
      @PracticallyFixed  Рік тому

      Yes, that is one way to do it... 😉 Thanks for watching and commenting.

  • @brucebuckeye
    @brucebuckeye Рік тому

    Yes, do be careful how you talk about that sensitive coil! 😂😂😂 Great video! Not something you see every day (or in a lifetime!).

    • @PracticallyFixed
      @PracticallyFixed  Рік тому +1

      You bet! Thanks for the comment. Take a look at Part 2 when you can to see what we can do to get this thing working. You may also like the series on the old Chevy car radio. Thanks again.

  • @jimnewman5596
    @jimnewman5596 Рік тому +1

    Great video, I would guess that you plan on removing the vibrator cover and polish the contacts.

  • @GUSTAVOIANKAUSKASDEMOURAPRIMOL
    @GUSTAVOIANKAUSKASDEMOURAPRIMOL 10 місяців тому

    Hey man, I need help! My ballast tube is dead, can you tell me what is the current and the voltage after the ballast tube? I want to make a circuit to not have to buy another one

    • @PracticallyFixed
      @PracticallyFixed  10 місяців тому

      Sorry, but I did not measure the impedance of the ballast tube while I had it - I wish I had.

    • @GUSTAVOIANKAUSKASDEMOURAPRIMOL
      @GUSTAVOIANKAUSKASDEMOURAPRIMOL 10 місяців тому

      No problem, I bought it, had to import from us because I’m from Brazil! Do u know how to regulate the potentiometer?? I’m having trouble to do it, it’s 3 potentiometers, do u know which one I regulate fist?

  • @UpcomingJedi
    @UpcomingJedi 7 місяців тому

    Right. I just happen to have all these 'dangerous' products just laying around and the FIRST thing im going to do is grab it to make a voltage test. BBZZZZZZ! Yup, its good.