The oscilloscope photo below shows this changing ... For more precise measurements I use a Fluke 80K-40 high voltage probe. This one is designed for use from 1kV to 40kV DC, with accuracy varying ...

Here’s how I do it using a Fluke high voltage probe as well as my own homemade ... which is also the spark gap width. The oscilloscope photo below shows this changing voltage.

The Owon HDS160 is a combined multimeter and oscilloscope and comes packed with a black pouch, a manual, a specifications ...