r/diytubes

How can I measure up to 3kv differential if the max voltage vs ground is 1kv for each of the probes?

I want to be able to use this to work on electrostatic CRT deflection amps and so forth where I can easily reach the 3kv. Can I really use this or do I need to return it?

If anyone thought the tube-based cassette player was a joke—well, it wasn't; this is already my second prototype.