#electronics

Mixing up a 103 (10nF) and a 104 (100nF) ceramic capacitor turned a guitar pedal's tone control into a dead knob. Here's how to read 3-digit and 4-digit capacitor codes correctly.

Voltage, current, and resistance explained through a genuinely hot charging cable — what Ohm's Law actually says, and how to use V = I × R without memorizing a triangle.

A brown band that looked black turned a 330Ω resistor into a 33Ω one and killed my LED in half a second. Here's how 4-band and 5-band resistor color codes actually work.