Making an oscilloscope is relatively easy ... has a video explaining it with an instrument from the 1960s. The diode sampler is the electronic equivalent of a stroboscope, capturing parts of ...

Would you like to have a small digital oscilloscope? Do you have a spare BlackPill (STM32F401) board and a TFT display laying around? [tvvlad1234] presents us with a simple and educational digital ...

CW diode lasers can be quite inexpensive but they are not well suited for fast, time-resolved applications, such as for kinetic measurements, and the wavelength is generally not tunable. Pulsed laser ...