I personally do not see any interest to power on this power supply.
Curiosity. I want to get acquainted with both high voltage and tube devices. I have also two old klystron HV power supply that are waiting in my basement.
Output voltage and current are extremely dangerous.
Why take unnecessary risks?
Many things are dangerous. The important is to know where the danger lies and thus use proper attitude.
This is why I look for advice on the forum. This PSU was used everyday in a lab, and it is an equipement of good quality. So it is not dangerous by itself, but just if it is not used properly.
I am sure that some chinese everyday consumer devices are much more dangerous.
As it is designed, it has no possible application in the amateur field and it is a completely outdated design for professional use.
I have at present no other constant current source of such high voltage. I do not have an immediate use of it, but this may come.
It is a museum piece, no need to turn it on.
A museum piece is even more attractive if it can be powered on. The best would be to be able to build a complete
setting using this power supply, which is what I am aiming on the long run.
Thanks Oldway for your concern. As you seem to know much more than me on these devices, I will be grateful for the help you could give me.