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Comment by semi-extrinsic | Hacker News Reader

Hmm? I don't get this.

If you're talking about the power adapter, you can buy a reputable one (it's external to the scope).

If you're talking about measurements on 220V equipment, just buy a genuine Digilent (or other brand) probe with 10x attenuation for about $20, then you can have complete faith in that the scope electronics will only see signals < 48V, which is completely safe.

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My bad! I was a bit drunk when posted that. I was talking about viewing the sine AC wave in the scope. Didn't try yet but I expect a funny smelly 'poof' and mainline fuses pop up. Probably my curiosity will finish blowing everything up just for confirmation. lol

You talk like you trust quite much in Digilent. I'll keep it in mind when looking for some instrumentation. Thanks a lot!

No worries. Looking at the sine AC wave should be fine. If you get a "10X" probe or one that has a 1X/10X switch, what happens in 10X mode is that the voltage gets divided by 10 through a resistor, so your multimeter should see 22V RMS sine wave (peak value should be 31V).

Well, you do what I do with any electronics I create, place it on some ventilated area where fire can't spread, have long cables with switches far from the equipment, do any work with power off (after waiting for any capacitor discharge), and wait for the "tshhhhh" every so often.

After it is well tested (measuring temperatures is hard, but doable) and you are confident it works, you can use it normally.

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