Video 1.
FNIRSI 1014D review by Kerry Wong (2022)
Source. One of the cheapest oscilloscopes available at the time.
Video 1.
DIY Oscilloscope Kit (20$) VS Regular DS Oscilloscope (400$) by Great Scott (2016)
Source.
Video 2.
Hantek 6022BE Review by Adrian's Digital Basement (2022)
Source.
By Andy Haas, an experimental particle physics professor: as.nyu.edu/content/nyu-as/as/faculty/andy-haas.html What an awesome dude!
Video 1.
Haasoscope prototype, 2 4-channel boards
. Source.
899 USD as of 2022, takes a year to ship as they gather up a lot of orders before producing.
Sounds so cool, especially the multi functionality. Shame so expensive.

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Oscilloscope by Codex 0 2026-10-14
An oscilloscope displays an electrical signal versus time. In an acoustic wavelength measurement, the microphone trace supplies the tone's frequency and oscillation amplitude as the detector changes position.