TA-0425: LCR Fixture or Kelvin Clip - Tweezers or BNC, Bananas and Crocs

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  • Опубликовано: 26 янв 2025

Комментарии • 44

  • @jwrtiger
    @jwrtiger 2 месяца назад +1

    Very nice video, Tony. I am still surprised how you and I have many of the same pieces of test equipment. I also have most of the test cables and fixtures you showed in this video. Again very informative and well produced video.

    • @TonyAlbus
      @TonyAlbus  2 месяца назад

      Thank you so much John! Yes indeed, we have many in common... great minds ... :))

  • @TheDefpom
    @TheDefpom 2 месяца назад +1

    @3:00 Those 4 wire clip leads usually have the 2nd wire feeding back up to the other half of the clip, so each clip has a wire going to it, so it is a true 4 wire system.
    EDIT: you figured it out 👍🤓

    • @TonyAlbus
      @TonyAlbus  2 месяца назад +1

      Hi Scott, thanks, yes indeed :), still i think the Kelvins with Rg316 look much better.

    • @pault6533
      @pault6533 2 месяца назад

      True. I have this exact set and that is how they are wired in the alligator. The wires exit together for better physical handling. There are separate blades to the clip ends and the hinge is insulated.

  • @robharley9838
    @robharley9838 2 месяца назад

    Great video as usual Tony! Very interesting to see the different levels of sophistication in the test signals of the various models of LCR meters. That was very helpful. I have a Hantek meter like the one you showed and purchased a Kelvin clip kit from VoltLog where I built my own 4-wire clips. In those, both wires came in one side of the handle, but the sense wire simply crossed over the hinge of the clip and up to the opposite jaw. Cable length was essentially the same with no continuity between the jaws when open. Love your work, thanks for the content! - JRH

    • @TonyAlbus
      @TonyAlbus  2 месяца назад

      Thank you! , yes the Voltlog are nice, i saw them too when doing research.

  • @MarcelGoedraad
    @MarcelGoedraad 2 месяца назад +1

    Beste Tony, Je hebt me alweer geld gekost....... Top tip die kelvin kabels gemaakt van Teflon coax, heb ze zojuist binnen gekregen en het viel me meteen op dat de Kelvin clips veel beter klemmen dan die wit/grijze "'standaard Chinese"' clips met rood en zwart krimpkous erop en die draaibare huls als onderdeel van de banaanstekkers (wat nooit goed contact kan maken). Ga zo door, ben erg blij met je tips en uitzoekwerk om bij Ali de krenten uit de pap te halen.

    • @TonyAlbus
      @TonyAlbus  2 месяца назад

      Dank je, ja leek wel wel leuk om alles naast alkaar te laten zien, die Kelvins zijn ook mijn favoriet, veel beter dan de normale.

  • @craxd1
    @craxd1 2 месяца назад +1

    Even though they will fit, these might not work with some LCR meters, such as the HP digital bench type. They specify several ways of attaching the shields together, and to ground, for certain measurements.

    • @TonyAlbus
      @TonyAlbus  2 месяца назад

      Thanks for sharing.

  • @Diagoras_de_Melos
    @Diagoras_de_Melos 2 месяца назад +1

    Great informative video, thank you, Tony!
    P.S. I bought a Kelvin test lead from JZDZ for my Keithley 6500 on AliExpress a month ago for 17 euros, and they turned out to be very high quality. I'm surprised...

    • @TonyAlbus
      @TonyAlbus  2 месяца назад

      Thank you, and thanks for sharing, always good to know what is around, sounds like you found something good.

  • @KB1UIF
    @KB1UIF 2 месяца назад +1

    Hi Tony, another great informative video, thank you. Also, thank you for subscribing.👍

  • @grerlab2777
    @grerlab2777 2 месяца назад

    Nice educational video as usual... Thanks Tony... TOP #1...✌

  • @ernestb.2377
    @ernestb.2377 2 месяца назад

    Hi Tony. Valuable video presentation. Alternatively, one can become handy with (nano)VNA and do a much wider frequency sweep. You still need different component fixtures, like maybe separate for through hole and smd. Oftentimes is this approach maybe some more work as you need to calibrate, but if you have a few standard setups, you can save the cal reference for a specific setup and doesn't need to calibrate every time, I suppose.

    • @TonyAlbus
      @TonyAlbus  2 месяца назад

      Thanks, Nice!! thanks for sharing

  • @scottdrake5159
    @scottdrake5159 2 месяца назад

    This is so wonderful! My odds and ends explained.

  • @LawpickingLocksmith
    @LawpickingLocksmith 2 месяца назад

    Wow! You have a good selection Tony. My only 4 wire is the Fnirsi battery internal resistance meter that has crude and stroppy cables.

    • @TonyAlbus
      @TonyAlbus  2 месяца назад

      Thanks! , yes collected over the years when i also needed to find out what you actualy need and not. Yes Fnirsi is not the best, but it looks nice

    • @LawpickingLocksmith
      @LawpickingLocksmith 2 месяца назад

      @@TonyAlbus Fnirsi makes a lot of junk but the battery internal resistance tester is hard to beat in value.

    • @LawpickingLocksmith
      @LawpickingLocksmith 2 месяца назад

      @@TonyAlbus My Fnirsi battery tester is currently the best!

    • @TonyAlbus
      @TonyAlbus  2 месяца назад

      @@LawpickingLocksmith Yes agree, i also did eyeball the battery r tester.

    • @TonyAlbus
      @TonyAlbus  2 месяца назад

      @@LawpickingLocksmith maybe when the 11.11 kicks in, i see if its price goes even lower :)

  • @danieldlouhy3348
    @danieldlouhy3348 2 месяца назад +1

    Hi Tony, in one of your older videos (Lab tour 2022 #268, at about 7: 53) you showed a Rohde und Schwarz programmable voltage source +40V -40V. I have one too, but one of the EPROMs died and Rohde und Schwarz doesn´t want to give the EPROM data. Is there anyway you could read those EPROMs and publish the contents? I tried averything, looked everywhere, but they are nowhere to be found :/.

    • @TonyAlbus
      @TonyAlbus  2 месяца назад

      Hi, yes no problem, it could take some time, contact me by email, find it in about. email me so i dont forget,

  • @MarcelHuguenin
    @MarcelHuguenin 2 месяца назад

    Hey Tony! Ik heb zelf ook zo'n Kelvin kabelset met beide kabels aan één zijde van de connector, maar ieder van de kabels gaat gewoon naar zijn eigen zijde van de krokodil. Maar dat weet jij natuurlijk ook 😉 mooie collectie anyway 👍🏻

    • @TonyAlbus
      @TonyAlbus  2 месяца назад

      Yes klopt helemaal. mooi spul.

  • @guateque1718
    @guateque1718 2 месяца назад

    Great video.

  • @barrybogart5436
    @barrybogart5436 2 месяца назад

    Just ordered a pair.

    • @TonyAlbus
      @TonyAlbus  2 месяца назад

      Nice!!

    • @barrybogart5436
      @barrybogart5436 2 месяца назад

      @@TonyAlbus They arrived, but I need to know how to use them with my B&K 878B LCR meter. My Kelvins have four leads, but my meter just has a single Guard socket. Can I just connect TWO leads together with a 2-into-1 banana adapter to insert into the Guard jack? Or am I missing something. Do I need to build a fixture for the three slots? Thanks and 73

    • @TonyAlbus
      @TonyAlbus  2 месяца назад

      @@barrybogart5436 Hi, i think you needed this one: go.tonyalbus.com/KelvinPCBdmm
      but if you have the babanas , i would indeed think you can put the guards together.

  • @zdzisiek1979
    @zdzisiek1979 2 месяца назад

    Witam fajne przewody ... pozdrawiam

    • @hennenberg88physqm16
      @hennenberg88physqm16 2 месяца назад

      Tanio je sprzedają na Aliexpress'ie...a teraz zbliża się ich święto 11 listopada...a potem black friday...tanio się je kupi...

    • @TonyAlbus
      @TonyAlbus  2 месяца назад

      Thank you!

    • @TonyAlbus
      @TonyAlbus  2 месяца назад

      @@hennenberg88physqm16 yes! now it the time :)

  • @Jnglfvr
    @Jnglfvr 2 месяца назад

    You could have just checked continuity between the individual jaws of ech clip with the banana plugs to confirm that both jaws were actually wired separately.