So, I am in the process convincing myself I should really get a differential scope probe
I sometimes work on medium voltage stuff the normal 230/400 mains, but also Piezo drivers to 700V
And I think I should really stop using the trick where I disconnect scope ground, and remember not to touch the BNC's
And also I often would like to match/trigger up high volt signal to a low volt signal.
But, I am a hobbyist, a frugal one at that, with sometimes some sidegig work for the Piezo stuff, so I tell myself I should watch the budget.
Long story short, out of this example list, which one should I get.
Or maybe a more easily answered question, which one should I avoid.
(not planning to buy at amazon, it is just a easily collected list)
https://www.amazon.com/Differential-Probe/s?k=Differential+ProbeDesired features (I think they are pretty much standard features):
- Safely measure up to 700V, so maybe a safety rating of at least 1000V
- Possibility to also measure low volt, like 3.3V or 12V
with reasonable detail, but avoiding common ground.
- Mix and match those two, linking them as trigger.
- Up to 100KHz PWM driven signals, so probably a 10MHz bandwidth is enough