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EEVblog #787 – Mailbag

EEVblog #787 – Mailbag

More Mailbag Forum HERE SPOILERS: Zhiyun Z1-Evolution 3-axis GoPro IMU based handheld image stabiliser gimbal ...

  • Philip Freidin

    No need to be ashamed by item 1, it takes all kinds to make the world go round, and to each his (or her) own.

  • bruno

    Hey Dave.

    I was thinking, for the broken LCD window, couldn’t you remove most of the broken glass, and then pour some 2-part clear epoxy on top? Or would shrinkage, heat dissipation (while the mix cures), or whatever, cause problems?

    As for CC dummy loads, are those a bit like DMM’s, where you can’t really have too many of them?

    Regards
    Bruno

  • pan

    at 3:00 i was SO expecting it to be an accompanying dildo :p

  • f4eru

    Take the dress appart ;)))
    I vote for a teardown (on an appropriate model :)

  • snoopy

    I have the exact same digital calipers which I bought from a computer swap meet for 20 bucks. It came in a nice plastic case so I am surprised that yours didn’t. Believe it or not these are very high quality compared to a lot of others. The residual offset can be reset by pressing the zero button. They are great for measuring up stuff when you are laying out pcbs’s.

    • huh

      Same caliper here, nice plastic case included.
      If that port allows reading their measured data, these cheap calipers could be hacked into linear encoders for CNC machines or robotics.

    • Goophy69

      Same here, but 9 bulks from ebay

  • Roger

    Re. the C C dummy load.
    For longer use when the power-dissipation on the heat-sink gets to high. Connect a power-resistor in series with the load. If you calculate the value with regards to the current and the voltage you can make most of the power dissipate in the resistor. A power-resistor can stand much higher temperatures than a mosfet.
    Just don´t burn yourself on it!
    I have used this in a 12V 100A CC load for a long time. Works great!

    Keep it up Dave!

    Roger

  • Richard

    Does anyone know where the nice PCB mounted BNC connector can be obtained from / what it’s part number is?

    Thanks all,
    Richard

    (Shamelessly crossposted here after first posting to the dedicated video #306)

    • Philip Freidin

      It is called a “Board Edge End Launch” connector. For example, this looks like what the board uses: http://www.digikey.com/product-detail/en/361V504ER/991-1036-ND/2355574

    • Philip Freidin
      • Richard

        Thank you very much!

      • Drone

        Nice connector find. I wish these came with a threaded end and a “D” cut to prevent them from spinning if the panel nuts come loose.

        Also, if you panel or box-mount these type of board-captive connectors, make sure your panel or box is thick and robust so the connector doesn’t flex when you hang a lot of stuff on it. Otherwise it will stress the board connection (especially is soldered with RoHS compliant solder).

        I know this from experience. More than once I’ve encountered the likes of VSAT transceivers that use connectors like this but don’t pay proper attention to mechanical design – fail.

        Regards, David in Jakarta

  • chippy

    Is it just me ?
    the video ends in the middle of a sentence at 6:57 .

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