Maximum voltage with 10x probe?

[Quincy56]

I would like to use this oscilloscope on a tube amp with DC volts up to 350. Mostly to look at AC audio signals. Possible?

Thanks

[jye1]

It is possible with 10x probe but great attention is asked for safety since the device was not designed for high voltage.

[Quincy56]

Thanks. Already tried looking at 110V AC on a US plug, seems to work fine.

I'm really more worried about my safety when working with high voltage DC. I was once shocked with 450V DC, it hurts! Lucky to still be here typing this.