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CIRCLE WITH A DOT

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  3. Ok #electronics nerds.

Ok #electronics nerds.

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  • paco@infosec.exchangeP paco@infosec.exchange

    Ok #electronics nerds. I must be doing something wrong.

    (Edit: Narrator: he was doing something wrong. As usual. Probes plugged into the wrong holes on the multimeter!)

    If I put my multimeter on resistance (that’s what I have done, isn’t it?) and I touch the 2 probes together, I expect to see basically 0 resistance. But I see 12.59. Then I touch the probes to the 2 terminals of my thermistor. I get basically the same reading. That makes no sense to me.

    I mean, I think the thermistor has gone bad, but I also don’t understand whether I’m doing this right. Is this actually a common failure mode for thermistors or am I doing something dumb with my multimeter?

    revk@toot.me.ukR This user is from outside of this forum
    revk@toot.me.ukR This user is from outside of this forum
    revk@toot.me.uk
    wrote last edited by
    #2

    @paco Are plugs in right sockets for resistance measurement?

    Many meters have different sockets for passive and active measurement (voltage/resistance vs current).

    paco@infosec.exchangeP 1 Reply Last reply
    0
    • paco@infosec.exchangeP paco@infosec.exchange

      Ok #electronics nerds. I must be doing something wrong.

      (Edit: Narrator: he was doing something wrong. As usual. Probes plugged into the wrong holes on the multimeter!)

      If I put my multimeter on resistance (that’s what I have done, isn’t it?) and I touch the 2 probes together, I expect to see basically 0 resistance. But I see 12.59. Then I touch the probes to the 2 terminals of my thermistor. I get basically the same reading. That makes no sense to me.

      I mean, I think the thermistor has gone bad, but I also don’t understand whether I’m doing this right. Is this actually a common failure mode for thermistors or am I doing something dumb with my multimeter?

      arrjay@tacobelllabs.netA This user is from outside of this forum
      arrjay@tacobelllabs.netA This user is from outside of this forum
      arrjay@tacobelllabs.net
      wrote last edited by
      #3

      @paco it should be near 0 for probes together- perhaps a probe is bad?

      1 Reply Last reply
      0
      • revk@toot.me.ukR revk@toot.me.uk

        @paco Are plugs in right sockets for resistance measurement?

        Many meters have different sockets for passive and active measurement (voltage/resistance vs current).

        paco@infosec.exchangeP This user is from outside of this forum
        paco@infosec.exchangeP This user is from outside of this forum
        paco@infosec.exchange
        wrote last edited by
        #4

        @revk I think so?

        Link Preview Image
        revk@toot.me.ukR xabean@infosec.exchangeX 2 Replies Last reply
        0
        • paco@infosec.exchangeP paco@infosec.exchange

          @revk I think so?

          Link Preview Image
          revk@toot.me.ukR This user is from outside of this forum
          revk@toot.me.ukR This user is from outside of this forum
          revk@toot.me.uk
          wrote last edited by
          #5

          @paco Should black always be in COM? Red in Ω

          I mean that is confusing, but looks that way.

          paco@infosec.exchangeP 1 Reply Last reply
          0
          • revk@toot.me.ukR revk@toot.me.uk

            @paco Should black always be in COM? Red in Ω

            I mean that is confusing, but looks that way.

            paco@infosec.exchangeP This user is from outside of this forum
            paco@infosec.exchangeP This user is from outside of this forum
            paco@infosec.exchange
            wrote last edited by
            #6

            @revk Goddammit. I had the probes in the wrong god damn holes! @arrjay

            revk@toot.me.ukR 1 Reply Last reply
            0
            • paco@infosec.exchangeP paco@infosec.exchange

              @revk Goddammit. I had the probes in the wrong god damn holes! @arrjay

              revk@toot.me.ukR This user is from outside of this forum
              revk@toot.me.ukR This user is from outside of this forum
              revk@toot.me.uk
              wrote last edited by
              #7

              @paco @dashrb This is a lovely example of *** 4 MINUTES *** on the Fediverse.

              A random person asks a deeply technical question.

              4 minutes later they have working answer.

              The fucking fediverse rocks.

              OK, I am no linguist, it may be "The fediverse fucking rocks" - someone tells me which.

              Glad to be a part of it.

              I may go to the pub now...

              fritzadalis@infosec.exchangeF laguiri@neopaquita.esL 2 Replies Last reply
              1
              0
              • paco@infosec.exchangeP paco@infosec.exchange

                @revk I think so?

                Link Preview Image
                xabean@infosec.exchangeX This user is from outside of this forum
                xabean@infosec.exchangeX This user is from outside of this forum
                xabean@infosec.exchange
                wrote last edited by
                #8

                @paco @revk try black in COM, (bottom right) red in VΩ┥┝ (top right) and then in resistance mode, join the probe leads together. Should read 0 or very close to 0. Lemme know if that's what happens!

                paco@infosec.exchangeP 1 Reply Last reply
                0
                • xabean@infosec.exchangeX xabean@infosec.exchange

                  @paco @revk try black in COM, (bottom right) red in VΩ┥┝ (top right) and then in resistance mode, join the probe leads together. Should read 0 or very close to 0. Lemme know if that's what happens!

                  paco@infosec.exchangeP This user is from outside of this forum
                  paco@infosec.exchangeP This user is from outside of this forum
                  paco@infosec.exchange
                  wrote last edited by
                  #9

                  @xabean @revk sigh…

                  xabean@infosec.exchangeX 1 Reply Last reply
                  0
                  • paco@infosec.exchangeP paco@infosec.exchange

                    @xabean @revk sigh…

                    xabean@infosec.exchangeX This user is from outside of this forum
                    xabean@infosec.exchangeX This user is from outside of this forum
                    xabean@infosec.exchange
                    wrote last edited by
                    #10

                    @paco @revk We are From the Internet and we're Here to Help.

                    simonzerafa@infosec.exchangeS 1 Reply Last reply
                    0
                    • paco@infosec.exchangeP paco@infosec.exchange

                      Ok #electronics nerds. I must be doing something wrong.

                      (Edit: Narrator: he was doing something wrong. As usual. Probes plugged into the wrong holes on the multimeter!)

                      If I put my multimeter on resistance (that’s what I have done, isn’t it?) and I touch the 2 probes together, I expect to see basically 0 resistance. But I see 12.59. Then I touch the probes to the 2 terminals of my thermistor. I get basically the same reading. That makes no sense to me.

                      I mean, I think the thermistor has gone bad, but I also don’t understand whether I’m doing this right. Is this actually a common failure mode for thermistors or am I doing something dumb with my multimeter?

                      brendan@social.brendans-bits.comB This user is from outside of this forum
                      brendan@social.brendans-bits.comB This user is from outside of this forum
                      brendan@social.brendans-bits.com
                      wrote last edited by
                      #11

                      @paco
                      Disregard my post, @revk had the same idea as I did.

                      Can you post a photo showing where your leads are plugged into the multimeter?

                      paco@infosec.exchangeP 1 Reply Last reply
                      0
                      • xabean@infosec.exchangeX xabean@infosec.exchange

                        @paco @revk We are From the Internet and we're Here to Help.

                        simonzerafa@infosec.exchangeS This user is from outside of this forum
                        simonzerafa@infosec.exchangeS This user is from outside of this forum
                        simonzerafa@infosec.exchange
                        wrote last edited by
                        #12

                        @xabean @paco @revk

                        One is glad to be of service 😉

                        Link Preview Image
                        1 Reply Last reply
                        0
                        • revk@toot.me.ukR revk@toot.me.uk

                          @paco @dashrb This is a lovely example of *** 4 MINUTES *** on the Fediverse.

                          A random person asks a deeply technical question.

                          4 minutes later they have working answer.

                          The fucking fediverse rocks.

                          OK, I am no linguist, it may be "The fediverse fucking rocks" - someone tells me which.

                          Glad to be a part of it.

                          I may go to the pub now...

                          fritzadalis@infosec.exchangeF This user is from outside of this forum
                          fritzadalis@infosec.exchangeF This user is from outside of this forum
                          fritzadalis@infosec.exchange
                          wrote last edited by
                          #13

                          @revk @paco @dashrb @paco
                          Fucking Fediverse rocks is about the Fediverse fucking.

                          Fediverse fucking rocks is about the fucking Fediverse.

                          ramsey@phpc.socialR 1 Reply Last reply
                          0
                          • brendan@social.brendans-bits.comB brendan@social.brendans-bits.com

                            @paco
                            Disregard my post, @revk had the same idea as I did.

                            Can you post a photo showing where your leads are plugged into the multimeter?

                            paco@infosec.exchangeP This user is from outside of this forum
                            paco@infosec.exchangeP This user is from outside of this forum
                            paco@infosec.exchange
                            wrote last edited by
                            #14

                            @brendan Yep. I am embarrassed. Wrong hole, you idiot. https://infosec.exchange/@paco/116273308690418878

                            @revk

                            brendan@social.brendans-bits.comB 1 Reply Last reply
                            0
                            • revk@toot.me.ukR revk@toot.me.uk

                              @paco @dashrb This is a lovely example of *** 4 MINUTES *** on the Fediverse.

                              A random person asks a deeply technical question.

                              4 minutes later they have working answer.

                              The fucking fediverse rocks.

                              OK, I am no linguist, it may be "The fediverse fucking rocks" - someone tells me which.

                              Glad to be a part of it.

                              I may go to the pub now...

                              laguiri@neopaquita.esL This user is from outside of this forum
                              laguiri@neopaquita.esL This user is from outside of this forum
                              laguiri@neopaquita.es
                              wrote last edited by
                              #15

                              @revk @paco @dashrb it depends if your emphasis is on the excellence of the fediverse (it fucking rocks) or how different it is from a previously mentioned thing (the fucking Fediverse and no other)

                              1 Reply Last reply
                              0
                              • fritzadalis@infosec.exchangeF fritzadalis@infosec.exchange

                                @revk @paco @dashrb @paco
                                Fucking Fediverse rocks is about the Fediverse fucking.

                                Fediverse fucking rocks is about the fucking Fediverse.

                                ramsey@phpc.socialR This user is from outside of this forum
                                ramsey@phpc.socialR This user is from outside of this forum
                                ramsey@phpc.social
                                wrote last edited by
                                #16

                                @FritzAdalis @revk @paco @dashrb I read “fucking Fediverse rocks” as being about one who is fucking rocks from the Fediverse.

                                While “Fediverse fucking rocks” is about the entire Fediverse have sex with rocks.

                                ramsey@phpc.socialR 1 Reply Last reply
                                0
                                • ramsey@phpc.socialR ramsey@phpc.social

                                  @FritzAdalis @revk @paco @dashrb I read “fucking Fediverse rocks” as being about one who is fucking rocks from the Fediverse.

                                  While “Fediverse fucking rocks” is about the entire Fediverse have sex with rocks.

                                  ramsey@phpc.socialR This user is from outside of this forum
                                  ramsey@phpc.socialR This user is from outside of this forum
                                  ramsey@phpc.social
                                  wrote last edited by
                                  #17

                                  @FritzAdalis @revk @paco @dashrb Buffalo buffalo Buffalo buffalo buffalo buffalo Buffalo buffalo.

                                  1 Reply Last reply
                                  0
                                  • paco@infosec.exchangeP paco@infosec.exchange

                                    @brendan Yep. I am embarrassed. Wrong hole, you idiot. https://infosec.exchange/@paco/116273308690418878

                                    @revk

                                    brendan@social.brendans-bits.comB This user is from outside of this forum
                                    brendan@social.brendans-bits.comB This user is from outside of this forum
                                    brendan@social.brendans-bits.com
                                    wrote last edited by
                                    #18

                                    @paco @revk It's good you got to the bottom of this mystery. We've all made that same mistake before, more than once!

                                    revk@toot.me.ukR 1 Reply Last reply
                                    0
                                    • brendan@social.brendans-bits.comB brendan@social.brendans-bits.com

                                      @paco @revk It's good you got to the bottom of this mystery. We've all made that same mistake before, more than once!

                                      revk@toot.me.ukR This user is from outside of this forum
                                      revk@toot.me.ukR This user is from outside of this forum
                                      revk@toot.me.uk
                                      wrote last edited by
                                      #19

                                      @brendan @paco Indeed, been there, done that!

                                      Now I need a "got the t-shirt" design for

                                      "wrong hole [multimeter edition]"

                                      1 Reply Last reply
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