I agree with post #12, but not necessary - sphere
so multiplier for spherical will not work with pointed electrodes ?the more the electrodes are sharp, the smaller the distance is needed to start the arc.
Using multiple lower voltage resistors is like using multiple diodes in series to block a voltage that exceeds the individual diodes. If the voltage is not shared equally one is likely to experience over voltage and fail.
You can buy a High Voltage Probe. They have a built-in voltage driver...
No, they don't have a voltage divider.It's just a single 990Megohm (3*330Meg) resistor.Read post#11 again.Leo..