Full-screen version: <a href="http://www.falstad.com/circuit/circuitjs.html" rel="nofollow">http://www.falstad.com/circuit/circuitjs.html</a><p>Index of circuit examples: <a href="http://www.falstad.com/circuit/e-index.html" rel="nofollow">http://www.falstad.com/circuit/e-index.html</a>