1 #257: Power Supply Decoupling & Filtering: why we use multiple caps in different locations
A w2aew demonstration of why boards use several decoupling capacitors of different values in different places, and what that does to the supply rails.
Topic
w2aew
10 videos. Ranked by independent recommendations, not by views.
2 #138: How to Measure Output Impedance
A w2aew tutorial on measuring a circuit's output impedance with an oscilloscope, regularly given as the practical answer to source resistance questions.
3 #85: Basics of R2R Ladder DAC | Digital Analog Conversion, Tutorial R-2R DAC Thevenin Superposition
w2aew walks through an R-2R ladder DAC using Thevenin reduction and superposition, cited as a worked example of both circuit analysis techniques.
4 #9: Basic 1X and 10X Oscilloscope Probe tutorial
A w2aew explainer on how 1x and 10x oscilloscope probes differ, why the attenuation matters and how probe capacitance affects measurements.
5 #90: Measure Capacitors and Inductors with an Oscilloscope and some basic parts
Shows how to measure capacitance and inductance using an oscilloscope and a cheap pulse generator with fast edges built from a Schmitt trigger inverter.
6 #235: Basics of Analog Panel Meters | Analog meter movements | D'Arsonval
A w2aew explainer on analogue panel meters, praised for teaching how to characterise and drive them, often paired with his follow up video.
Hidden gem7 #297: Basics of the Smith Chart - Intro, impedance, VSWR, transmission lines, matching
W2AEW walks through Smith chart fundamentals and finishes with an L network matching example, recommended as a clear RF primer.
8 #55: Back to Basics: Tutorial on LC Resonant Circuits
A bench demonstration of LC resonance from w2aew, recommended for seeing a tank circuit behave on a scope rather than only in equations.
9 #67: Basics of Common Emitter Amplifier Gain and Frequency Response with Measurements
A w2aew tutorial on how a common emitter BJT amplifier's gain and frequency response are set by its external components, backed by bench measurements.
10 #157: Circuit fun: Automatic audio leveling circuit | audio compressor | for scanning receiver
An explanation of an automatic audio level control circuit built with germanium diodes, shared as a worked example with a schematic.
