Strongly recommended
EEVblog #279 - How NOT To Blow Up Your Oscilloscope!
Why people recommend it
Widely cited explanation of why oscilloscope grounds are tied to earth and how careless probing of mains or earthed circuits can destroy the scope.
Watch for: Essential viewing before probing anything connected to mains
In their words
For scope safety tips, watch the video entitled "how not to blow up your oscilloscope", by the legendary Dave Jones, from the EEVBlog.
Simon Fitch on electronics.stackexchange.com, Mar 2023. CC BY-SA.
You should google for "how not to blow up your oscilloscope" first, e.g., EEVblog #279 - How NOT To Blow Up Your Oscilloscope! (YouTube video).
Andrew Morton on electronics.stackexchange.com, Jul 2023. CC BY-SA.
You need to watch this before you go much further.
Roger Rowland on electronics.stackexchange.com, Jun 2016. CC BY-SA.
