Reminds me of Paul Falstad and his excellent circuit simulator tool. He originally wrote it as a Java applet, then gave permission to an Iian Sharp to have it r

Reminds me of Paul Falstad and his excellent circuit simulator tool. He originally wrote it as a Java applet, then gave permission to an Iian Sharp to have it rewritten in HTML5: https://www.falstad.com/circuit/ https://www.falstad.com/circuit/