circuit-thinking/teaching-guides/index.html
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<fort-nav><nav class="fort-nav" data-fort="nav"><a href="/">Alexander Riobe • IT Instructor &amp; Tech Educator</a><a href="/teaching-guides/circuit-thinking/">Circuit Thinking for Network Diagnosis • Alexander Riobe</a><a href="/films/lg-nvidia-collaboration/">Index</a><a href="/films/the-arm-wall/">Index</a><a href="/teaching-guides/" class="active" aria-current="page">Teaching Guides • Alexander Riobe</a><a href="/negros-fruit-dove.html">The Negros Fruit Dove: A Rare Gem of the Philippines</a></nav></fort-nav>
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<h1>Teaching Guides</h1>
<p class="subtitle">Electronics principles for the digital age</p>
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<p>These guides grew out of my classroom at Central Texas College. When a student stares at a router config the way I once stared at a chassis full of tubes, the same diagnostic logic applies: follow the signal, verify each stage, don't guess — measure.</p>
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<h3>Circuit Thinking for Network Diagnosis</h3>
<p>Translate vintage radio troubleshooting flow into modern network layer diagnosis. Signal path, stage verification, and the art of the systematic swap.</p>
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<h3>Power Budgeting: From Plate Voltage to PoE</h3>
<p>Calculate power delivery across systems — whether it's a tube amp's B+ rail or a PoE switch feeding wireless APs.</p>
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<h3>Signal Integrity Across Eras</h3>
<p>Impedance matching, reflection, and noise — the physics that links coaxial cable to Cat6a to fiber.</p>
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<h2>Why This Approach?</h2>
<p>I've watched students memorize OSI layers without ever seeing a signal on a scope. When you trace a hum in a 1950s Philco, you learn <em>why</em> Layer 1 matters. The components change; the reasoning doesn't.</p>
<p>Each guide includes worked examples, common failure modes, and a printable one-page diagnostic flowchart you can pin above your bench.</p>
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