tube prototyping safety

[jhaible]

Hi,

I was wondering about safety in building tube circuits,
especially about grounding.

I think there is no doubt that on the *finished* device there
should be protective earth (PE) attached to the metal enclosure,
(and probably to the signal ground as well).

But what are you doing while prototyping, when you're
working on the open circuit ? My thought would be *not*
to attach protective earth anywhere and keep the high
DC voltage floating, so you'd only run into danger when
you're touching both the high voltage and the signal gnd
at the same time. (With parts of the circuit connected to
PE you'd be in danger just touching *one* point of the circuit.)

Is this the way to go ? Or am I very wrong here ?

(Mind you, all the above is a *question*, so don't just do it
on my "advice" ...)

JH.