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    <p>I still have a few spare PCBs for this if anyone wants one.  Made
      from the publicly available gerbers Phil Baljeu put on his github:
<a class="moz-txt-link-freetext" href="https://github.com/psyingo/OGA/tree/master/Oscilloscope_Graphic_Artist_updated">https://github.com/psyingo/OGA/tree/master/Oscilloscope_Graphic_Artist_updated</a><br>
    </p>
    <p>Cheers,<br>
      A.</p>
    <p><br>
    </p>
    <div class="moz-cite-prefix">On 9/08/2021 10:27 am, Terry Bowman via
      Synth-diy wrote:<br>
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      cite="mid:58B167F3-9A1B-4EDB-BE85-A5C6FDFFE897@gmail.com">
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      For years I've wanted to probe deeper into the workings of The
      Oscilloscope Artist...
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      <div class="">Blog post with pdf download here: <a
          href="https://www.astarcloseup.com/2016/02/the-oscilloscope-artist.html"
          class="" moz-do-not-send="true">https://www.astarcloseup.com/2016/02/the-oscilloscope-artist.html</a>
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        <div class="">Half of the circuit is four classic Schmitt
          Trigger/Integrator LFOs and that part I understand. It's the
          second part, particularly the phase shifting, that I'd like to
          understand better.</div>
        <div class=""><br class="">
        </div>
        <div class="">I'm not familiar with any circuit simulators
          although I've read about most of them. What do you suggest?
          I'm in the Mac universe.</div>
        <div class=""><br class="">
        </div>
        <div class="">It would be nice to have a model of the LFO to
          start with. Thanks in advance!</div>
        <div class=""><br class="">
        </div>
        <div class=""><br class="">
          <div class="">
            <div dir="auto" style="caret-color: rgb(0, 0, 0); color:
              rgb(0, 0, 0); letter-spacing: normal; text-align: start;
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              -webkit-nbsp-mode: space; line-break: after-white-space;"
              class="">
              <div dir="auto" style="caret-color: rgb(0, 0, 0); color:
                rgb(0, 0, 0); letter-spacing: normal; text-align: start;
                text-indent: 0px; text-transform: none; white-space:
                normal; word-spacing: 0px; -webkit-text-stroke-width:
                0px; text-decoration: none; word-wrap: break-word;
                -webkit-nbsp-mode: space; line-break:
                after-white-space;" class="">
                <div style="text-align: start; text-indent: 0px;
                  word-wrap: break-word; -webkit-nbsp-mode: space;
                  line-break: after-white-space;" class="">
                  <div style="text-align: start; text-indent: 0px;
                    word-wrap: break-word; -webkit-nbsp-mode: space;
                    line-break: after-white-space;" class="">
                    <div style="color: rgb(0, 0, 0); letter-spacing:
                      normal; text-transform: none; white-space: normal;
                      word-spacing: 0px; -webkit-text-stroke-width: 0px;
                      text-align: start; text-indent: 0px; word-wrap:
                      break-word; -webkit-nbsp-mode: space; line-break:
                      after-white-space;" class="">Terry Bowman, KA4HJH<br
                        class="">
                      "The Mac Doctor"<br class="">
                      <br class="">
                    </div>
                    <div style="color: rgb(0, 0, 0); letter-spacing:
                      normal; text-transform: none; white-space: normal;
                      word-spacing: 0px; -webkit-text-stroke-width: 0px;
                      text-align: start; text-indent: 0px; word-wrap:
                      break-word; -webkit-nbsp-mode: space; line-break:
                      after-white-space;" class=""><a
                        href="https://www.astarcloseup.com" class=""
                        moz-do-not-send="true">https://www.astarcloseup.com</a></div>
                    <div style="color: rgb(0, 0, 0); letter-spacing:
                      normal; text-transform: none; white-space: normal;
                      word-spacing: 0px; -webkit-text-stroke-width: 0px;
                      text-align: start; text-indent: 0px; word-wrap:
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                      after-white-space;" class=""><br class="">
                    </div>
                    <div style="text-align: start; text-indent: 0px;
                      word-wrap: break-word; -webkit-nbsp-mode: space;
                      line-break: after-white-space;" class="">“...the
                      book said something astonishing, a very big
                      thought. The stars, it said, were suns but very
                      far away. The Sun was a star but close up.”—Carl
                      Sagan, "The Backbone Of Night",<span
                        class="Apple-converted-space" style="color:
                        rgb(0, 0, 0); letter-spacing: normal;
                        text-transform: none; white-space: normal;
                        word-spacing: 0px; -webkit-text-stroke-width:
                        0px;"> </span><i style="color: rgb(0, 0, 0);
                        letter-spacing: normal; text-transform: none;
                        white-space: normal; word-spacing: 0px;
                        -webkit-text-stroke-width: 0px;" class="">Cosmos</i>, 1980<br
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      <pre class="moz-quote-pre" wrap="">_______________________________________________
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