The oldest monitor that still works. I think I bought it in 1998. It's an antique flat panel.
When I turned on my computer, however, I noticed that the screen didn't come back. No power. We figured out that there must have been a surge when the power failed that managed to blow out the monitor's power supply/transformer. I do remember that when we saw the flash outside and the power went off, it tried to come back on twice in the seconds following. Maybe those surges fried my monitor's power supply.
At any rate, the monitor (which is probably still ok) won't work without a power supply. I went online Sunday morning and found a Dell monitor, state of the art, with better resolution than my more than ten-year-old monitor. It's on sale with free shipping, so I ordered it. Later, Ken found some power supplies online that might work, so he may get one just so we have a backup.
Speaking of backups, I'm using the old ViewSonic monitor (pictured above) that I had in San Francisco for now. It's working fine, even though the resolution leaves a lot to be desired. But I'm glad that we wrapped it up and saved it because it's coming in handy right now.