A differential probe, a device for measuring the voltage between two points in a circuit rather than the voltage between a point and ground, it an extremely useful addition to any electronics bench.

For decades, the venerable 10:1 passive scope probe has connected innumerable signals and scopes to each other. And, when neither the probe’s nor the scope’s performance limitations are exceeded, the ...

A note to readers: This HTML text is an updated version of the piece that ran in our November 14, 2002, issue. Agilent Technologies is returning to the high end of the digital-scope market—a business ...