Tektronix oscilloscope 2445 DMM 4ch 150MHz 1985 repair teadown

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  • เผยแพร่เมื่อ 3 ธ.ค. 2024

ความคิดเห็น • 19

  • @jonscally2349
    @jonscally2349 3 หลายเดือนก่อน +2

    perfect timing Thomas..just woke up...will enjoy this with my morning coffee.cheers

  • @Gamer_53727
    @Gamer_53727 3 หลายเดือนก่อน +2

    Great video ❤👍

  • @Edisson.
    @Edisson. 3 หลายเดือนก่อน +1

    Hi Thomas, these are amazing machines, congrats on the purchase, thanks for the multimeter demo (I had the oscilloscope/multimeter combination with the 466) today I have 2x 2465's and they work absolutely gorgeous. I converted one to LED grille backlighting because I couldn't find the original bulbs.
    Nice day 🙂 Tom

  • @msylvain59
    @msylvain59 3 หลายเดือนก่อน +1

    6:20 what the heck is going on with that "do not wash this module" sticker 🤔

    • @TeardownOZ2CPU
      @TeardownOZ2CPU  3 หลายเดือนก่อน +1

      inside this module you find a few really special relays, the contacts can not tollerate any kind of stuff on the surface, the no wash sticker is very normal on signal relay boards.

    • @idleprepress
      @idleprepress 2 หลายเดือนก่อน

      @@TeardownOZ2CPU but why would someone wash with detergents a high precision electronic component, that was probably the confusing thing to mention inside such a device. Because if it's about not washing the front panel to avoid leaking stuff in, so why did they put it inside then, hmmm

  • @winstonsmith478
    @winstonsmith478 3 หลายเดือนก่อน +1

    Beautiful hardware.

  • @labiadh_chokri
    @labiadh_chokri 3 หลายเดือนก่อน +1

    Nice videos did the multimeter and the scope shared the same ground or they are isolated.

    • @TeardownOZ2CPU
      @TeardownOZ2CPU  3 หลายเดือนก่อน

      YES multimeter is fully isolated, well under 500V difference is accepted, as it say in the front plate

    • @labiadh_chokri
      @labiadh_chokri 3 หลายเดือนก่อน

      @@TeardownOZ2CPU u can spy the protocol between them to add a full color oled display to the multimeter.

  • @Vitalii-R.
    @Vitalii-R. 3 หลายเดือนก่อน +1

    You say oi-yo-yoi like east europeans 😂. Unusual to hear from English-speaking guy. Hello from Ukraine.

    • @TeardownOZ2CPU
      @TeardownOZ2CPU  3 หลายเดือนก่อน

      ha ha.. thanks.. i grew up in a little bit language confused family.. not a day goes by without I speak 3 languages, so that maybe also explain why i cant be perfect in any of them :-)

  • @zebo-the-fat
    @zebo-the-fat 3 หลายเดือนก่อน +1

    Nice!

  • @splitprissm9339
    @splitprissm9339 3 หลายเดือนก่อน +1

    RIFA metallized paper as a Y type? That sounds scary. Will they never short even at test voltage, as Y capacitors should, or will they just extra violently burst in order to open the circuit quickly enough to avoid any danger? :)

  • @splitprissm9339
    @splitprissm9339 3 หลายเดือนก่อน +1

    Don't fleamarket instruments often come with a ratsnest of cables and probes, one third of them being one third of what should come with the instrument, one third being valuable for a completely different instrument you have, another third being broken or useless stuff that at most is good for salvaging connectors from :)

    • @TeardownOZ2CPU
      @TeardownOZ2CPU  3 หลายเดือนก่อน

      yes sometimes i score all sorts of cables and extras together with instruments

  • @johncooper123
    @johncooper123 3 หลายเดือนก่อน +1

    According to the date codes on the ICs it is from 1984/85 - not 1995 ;-)

    • @TeardownOZ2CPU
      @TeardownOZ2CPU  3 หลายเดือนก่อน

      Years in which the various models were introduced according to the Tektronix catalogs:
      1982: 2213, 2215, 2335, 2336, 2337 (first models)
      1983: (no new models) 1984: 2235, 2236, 2445, 2465.

  • @AndyHullMcPenguin
    @AndyHullMcPenguin 3 หลายเดือนก่อน +1

    You might be able to take out the worst of the damage to the screen hood with a clothes iron and some grease proof paper. You do this at your own risk of course.