On 2023-08-16, Bob Engelhardt wrote:
You could buy or build a differential probe.
If you only wanted to see one trace ...
Differential probe: too much (this is just a lower-level hobby). Whole point is to see both signals.
I think a big reason differential probes cost so much is because they are usually designed for mains voltage applications and are therefore built to
meet various electrical safety standards (CAT ratings, etc.).
If you don't care about this safety aspect (e.g., you're probing some low voltage electronics) there appears to be some mass-produced ~US$50 option readily available on aliexpress (no clue about its quality).
If you are not too fussed about probe performance then maybe you can just
hack together something on the bench. Perhaps a very simple opamp
differential amplifier circuit like this one will fill the bill:
https://www.electronics-tutorials.ws/opamp/opamp_5.html
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