Rail Probes?


Hey team -
I changed roles at work and I ran into a new animal called a rail probe. I have never seen one of these things before, even though I have been doing analog and power for a few decades now.
Does anyone know what's inside one of these? I see the input impedance is relatively low, and it gets lower with frequency... and the attenuation is something like 1.2.
It would help me understand their usefulness if I could see the circuitry inside - compared to a good passive probe with proper shielding.

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