Learn
Electronics, from first principles
Short, honest explanations of the ideas behind every circuit — the formulas, the intuition and the gotchas. Where a topic has a matching example, you can open it live in the simulator and watch the numbers for yourself.
Fundamentals
Ohm's Law
6 minThe relationship between voltage, current and resistance — and how to use it with confidence.
Read →Voltage Dividers
7 minTwo resistors turn one voltage into a smaller one — the most reused pattern in analog design.
Read →Series and Parallel Resistors
6 minHow to combine resistors into a single equivalent — the foundation of circuit reduction.
Read →Reading Schematics
6 minSymbols, nodes and the ground reference — how to read a circuit diagram fluently.
Read →Components
Analysis
Ready to build one?
The fastest way to understand a circuit is to change it and watch what happens. Open the editor and wire something up.
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