Recommended · for some experience
#90: Measure Capacitors and Inductors with an Oscilloscope and some basic parts
Why people recommend it
Shows how to measure capacitance and inductance using an oscilloscope and a cheap pulse generator with fast edges built from a Schmitt trigger inverter.
Watch for: Scope bandwidth limits how fast an edge you can see
In their words
In W2AEW's videos, he builds a simple fast edge pulse generator using a 74AC14 hex Schmitt trigger (inverting) and demonstrates how to use it for capacitance and inductance measurements as well as a time-domain reflectometer.
JYelton on electronics.stackexchange.com, Aug 2013. CC BY-SA.
I've used them to make a cheap TDR, following #88 Cheap and simple TDR using an oscilloscope and 74AC14 Schmitt Trigger Inverter and #90 Measure Capacitors and Inductors with an Oscilloscope and some basic parts!
periblepsis on electronics.stackexchange.com, Jan 2026. CC BY-SA.
