Fancy measurement gear is often expensive to buy, but some bits of kit are entirely DIY’able if you’re ... frequency active differential oscilloscope probe, and they’re not cheap.

[Frank]’s DIY signal generator probe does exactly what ... he decided to modify a scope probe. Six dollars and two weeks later, [Frank] had a suitable scope probe on his doorstop shipped from ...

Utilize analog and digital signal processing techniques in building a low-cost high-precision digital oscilloscope for high school use.