HP 9100A/B: Effects of AC power interruption?

[John Garza (3665)]

(12-21-2024 04:34 AM)Kiwi Engr Wrote:  

Quote:my gut tells me this is iffy as some parts may achieve 'wake-up-voltage' a split second before others, which could do god knows what to a running program.

The implication is that if your machine is old (as they all are!), things like power supply voltage and transistor hFE, etc., might no longer be in spec, changing noise margins and set-up times for various circuits, especially during powering up.

Although in my case, it always works perfectly. This is just a (so far) unfounded fear of mine.
Another possibility is that this behavior is not by design but by serendipity.
Meaning it's not guaranteed to work, but does or usually does. NOMAS, I think it was called.
Maybe we could hear results from other HP-9100 owners out there?

-J