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CIRCLE WITH A DOT

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  3. Has anyone on here played with pummer circuits?

Has anyone on here played with pummer circuits?

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  • mle_online@social.afront.orgM mle_online@social.afront.org

    The modern online retail economy sucks!

    I need one 74AC240 chip for this. I could order a pack of 10 of them from Amazon (yuck) for $12.25 + $6.99 shipping, a single one from ebay for $2.50 + $12.50 shipping, a pack of 10 of them from ebay for $4.99 + $5.20 shipping, or one for $2 + $10 shipping from Mouser.

    UGH

    bytex64@awesome.gardenB This user is from outside of this forum
    bytex64@awesome.gardenB This user is from outside of this forum
    bytex64@awesome.garden
    wrote last edited by
    #40

    @MLE_online Also does it have to be AC? Would a cheaper HC or LS part work or do you need the 100MHz speed?

    mle_online@social.afront.orgM 1 Reply Last reply
    0
    • petrillic@hachyderm.ioP petrillic@hachyderm.io

      @bytex64 @MLE_online I would love this in PartsDB. At least inside a closed network.

      bytex64@awesome.gardenB This user is from outside of this forum
      bytex64@awesome.gardenB This user is from outside of this forum
      bytex64@awesome.garden
      wrote last edited by
      #41

      @MLE_online @petrillic Yeah, I’ve been thinking some kind of static export plugin that can just generate an inventory page would be neat for that.

      petrillic@hachyderm.ioP 1 Reply Last reply
      0
      • bytex64@awesome.gardenB bytex64@awesome.garden

        @MLE_online Also does it have to be AC? Would a cheaper HC or LS part work or do you need the 100MHz speed?

        mle_online@social.afront.orgM This user is from outside of this forum
        mle_online@social.afront.orgM This user is from outside of this forum
        mle_online@social.afront.org
        wrote last edited by
        #42

        @bytex64 that I don't know. I was just going by the schematic

        bytex64@awesome.gardenB 1 Reply Last reply
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        • bytex64@awesome.gardenB bytex64@awesome.garden

          @MLE_online @petrillic Yeah, I’ve been thinking some kind of static export plugin that can just generate an inventory page would be neat for that.

          petrillic@hachyderm.ioP This user is from outside of this forum
          petrillic@hachyderm.ioP This user is from outside of this forum
          petrillic@hachyderm.io
          wrote last edited by
          #43

          @bytex64 @MLE_online SiliconSocial.

          1 Reply Last reply
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          • mle_online@social.afront.orgM mle_online@social.afront.org

            @bytex64 that I don't know. I was just going by the schematic

            bytex64@awesome.gardenB This user is from outside of this forum
            bytex64@awesome.gardenB This user is from outside of this forum
            bytex64@awesome.garden
            wrote last edited by
            #44

            @MLE_online I’m reading the Make article about it, which uses an AC240, and it definitely doesn’t need it. It’s just doing some low speed switching. Any kind of inverter with enable would work.

            FWIW I have a “solar light controller” design that just uses a single transistor. It only uses a single NiMH cell though, so something will have to step up the voltage on the output (I use a joule thief). https://dominionofawesome.com/vca/doodles/solar-light-controller/

            1 Reply Last reply
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            • mle_online@social.afront.orgM mle_online@social.afront.org

              Has anyone on here played with pummer circuits? If so, do you have any circuits you like?

              (Please don't just send me links to pummer stuff online that you've never tried. I know how to use search engines)

              acsawdey@fosstodon.orgA This user is from outside of this forum
              acsawdey@fosstodon.orgA This user is from outside of this forum
              acsawdey@fosstodon.org
              wrote last edited by
              #45

              @MLE_online Have you seen this one?

              Link Preview Image
              Make a Joule Thief

              Make a Joule Thief: Yes, it's the infamous Joule Thief, in Instructable form! For those of you who don't know, the Joule Thief is a tiny little circuit that allows you to drive a white or blue LED from voltages as low as 0.5 volts. You think those batteries are dead? D…

              favicon

              Instructables (www.instructables.com)

              I would say the 74AC240 is overkill when what you really need is just a decent transistor ...

              mle_online@social.afront.orgM 1 Reply Last reply
              0
              • acsawdey@fosstodon.orgA acsawdey@fosstodon.org

                @MLE_online Have you seen this one?

                Link Preview Image
                Make a Joule Thief

                Make a Joule Thief: Yes, it's the infamous Joule Thief, in Instructable form! For those of you who don't know, the Joule Thief is a tiny little circuit that allows you to drive a white or blue LED from voltages as low as 0.5 volts. You think those batteries are dead? D…

                favicon

                Instructables (www.instructables.com)

                I would say the 74AC240 is overkill when what you really need is just a decent transistor ...

                mle_online@social.afront.orgM This user is from outside of this forum
                mle_online@social.afront.orgM This user is from outside of this forum
                mle_online@social.afront.org
                wrote last edited by
                #46

                @acsawdey that's a joule thief though, not a pummer. I want it to do the pumming thing

                acsawdey@fosstodon.orgA 1 Reply Last reply
                0
                • mle_online@social.afront.orgM mle_online@social.afront.org

                  @acsawdey that's a joule thief though, not a pummer. I want it to do the pumming thing

                  acsawdey@fosstodon.orgA This user is from outside of this forum
                  acsawdey@fosstodon.orgA This user is from outside of this forum
                  acsawdey@fosstodon.org
                  wrote last edited by
                  #47

                  @MLE_online Isn't that just a capacitive voltage booster?

                  mle_online@social.afront.orgM 1 Reply Last reply
                  0
                  • acsawdey@fosstodon.orgA acsawdey@fosstodon.org

                    @MLE_online Isn't that just a capacitive voltage booster?

                    mle_online@social.afront.orgM This user is from outside of this forum
                    mle_online@social.afront.orgM This user is from outside of this forum
                    mle_online@social.afront.org
                    wrote last edited by
                    #48

                    @acsawdey no, they do this blinking/pulsing thing that's neat

                    - YouTube

                    Auf YouTube findest du die angesagtesten Videos und Tracks. Außerdem kannst du eigene Inhalte hochladen und mit Freunden oder gleich der ganzen Welt teilen.

                    favicon

                    (www.youtube.com)

                    mle_online@social.afront.orgM 1 Reply Last reply
                    0
                    • mle_online@social.afront.orgM mle_online@social.afront.org

                      @acsawdey no, they do this blinking/pulsing thing that's neat

                      - YouTube

                      Auf YouTube findest du die angesagtesten Videos und Tracks. Außerdem kannst du eigene Inhalte hochladen und mit Freunden oder gleich der ganzen Welt teilen.

                      favicon

                      (www.youtube.com)

                      mle_online@social.afront.orgM This user is from outside of this forum
                      mle_online@social.afront.orgM This user is from outside of this forum
                      mle_online@social.afront.org
                      wrote last edited by
                      #49

                      @acsawdey here's another

                      - YouTube

                      Auf YouTube findest du die angesagtesten Videos und Tracks. Außerdem kannst du eigene Inhalte hochladen und mit Freunden oder gleich der ganzen Welt teilen.

                      favicon

                      (www.youtube.com)

                      1 Reply Last reply
                      0
                      • mle_online@social.afront.orgM mle_online@social.afront.org

                        @ai6yr ya, that's plenty!

                        steter@mastodon.stevesworld.coS This user is from outside of this forum
                        steter@mastodon.stevesworld.coS This user is from outside of this forum
                        steter@mastodon.stevesworld.co
                        wrote last edited by
                        #50

                        @MLE_online @ai6yr This is the most heartwarming thread I've seen today. Finding new homes for out pet ICs is what the internet was made for!

                        1 Reply Last reply
                        0
                        • mle_online@social.afront.orgM mle_online@social.afront.org

                          @RueNahcMohr you always say canadian mail is extremely slow and unreliable though!

                          farbenstau@infosec.exchangeF This user is from outside of this forum
                          farbenstau@infosec.exchangeF This user is from outside of this forum
                          farbenstau@infosec.exchange
                          wrote last edited by
                          #51

                          @MLE_online @RueNahcMohr As a punishment for not reaching his 52 robots in 52 weeks goal, he now has to build a robot that yeets the envelope across the border, right into the slot of a US Mail mailbox. 🤡

                          1 Reply Last reply
                          0
                          • mle_online@social.afront.orgM mle_online@social.afront.org

                            I would pay $5 for one if i could get it in a store right now in person, using my own body to pick it up and pay for it

                            zackstern@hachyderm.ioZ This user is from outside of this forum
                            zackstern@hachyderm.ioZ This user is from outside of this forum
                            zackstern@hachyderm.io
                            wrote last edited by
                            #52

                            @MLE_online I’m gathering up a Mouser order. Less useful since we’re not local, but let me know if you want to add to it for me to ship on to you. $2-4 shipping, what a savings?

                            mle_online@social.afront.orgM 1 Reply Last reply
                            0
                            • zackstern@hachyderm.ioZ zackstern@hachyderm.io

                              @MLE_online I’m gathering up a Mouser order. Less useful since we’re not local, but let me know if you want to add to it for me to ship on to you. $2-4 shipping, what a savings?

                              mle_online@social.afront.orgM This user is from outside of this forum
                              mle_online@social.afront.orgM This user is from outside of this forum
                              mle_online@social.afront.org
                              wrote last edited by
                              #53

                              @zackstern someone local is already mailing me a few, but thank you very much for the offer!

                              1 Reply Last reply
                              0
                              • mle_online@social.afront.orgM mle_online@social.afront.org

                                @RueNahcMohr you always say canadian mail is extremely slow and unreliable though!

                                ruenahcmohr@infosec.exchangeR This user is from outside of this forum
                                ruenahcmohr@infosec.exchangeR This user is from outside of this forum
                                ruenahcmohr@infosec.exchange
                                wrote last edited by
                                #54

                                @MLE_online slow, yes, but I think they always get a package delivered eventually.

                                1 Reply Last reply
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                                • R relay@relay.infosec.exchange shared this topic
                                • mle_online@social.afront.orgM mle_online@social.afront.org

                                  @RueNahcMohr you always say canadian mail is extremely slow and unreliable though!

                                  ruenahcmohr@infosec.exchangeR This user is from outside of this forum
                                  ruenahcmohr@infosec.exchangeR This user is from outside of this forum
                                  ruenahcmohr@infosec.exchange
                                  wrote last edited by
                                  #55

                                  @MLE_online and if you want I can send it to an address at work, or a library or a neighbor or the little old lady, terror of Colorado Blvd.

                                  1 Reply Last reply
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