[Daniel] wanted to power his current probe with a 5V input derived from the USB socket on his oscilloscope. This required the use of a 5 V to 24 V boost switching regulator – with two modules ...

We don’t know if it was cost or principle that motivated [Electronoobs] to build his own current clamp, but he did. This probe design is little more than a 3D printed case, an old power supply ...

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NASA's Lunar Trailblazer probe could be in trouble.

A quality chemical probe has sufficient mechanistic data versus ... of data and will necessarily depend on the context of use and current state of knowledge in the particular area under investigation.