Questions - Setting up a SRAM board in S-100 / Altair system?

Eric & All, On Fri, Sep 5, 2014 at 6:29 PM, Eric Smith <spacewar at gmail.com> wrote: Your statement made me think for a moment.. and it became clear that I must not fully understand the function of GFCI hardware. Now if a GFI can operate on an outlet with n/c to the 3rd prong (read: no ground wire) that +must+ mean that the GFI can sense a situation where a first current I is flowing in the hot lead (black) but it's not equal to a second current I' that is flowing in the neutral (white). An example would be a radio that draws 500mA under normal conditions, where 500mA flows in both the hot & neutral. But if the radio falls in the bathtub, now we might see a current of 750mA flowing in the hot, but only 500mA flowing in the neutral and an additional, anomalous 250mA flowing "somewhere" - which in this case, would be through the water / human to the cold-water pipe ground (via a metal tub, or metal drain hookup, etc). So a GFI doesn't respond to currents flowing through the ground circuit, but to current differentials in the hot & neutral circuits - is that correct? If that's true, then it doesn't really matter what's going on in the ground circuit - so long as the Ineutral < Ihot there's a fault condition.. there's a current going somewhere it's not intended to flow, eh?