help please

Pete, I'm in Missouri or mine would be yours, but I may be able to help, depending on how much you want to get these two Gurus up and running.

The power supplies for these are 12VDC, so if you think they adapters are really dead and don't mind cutting them up, you can cut the wire you'd normally plug into the Guru off at the transformer box, strip back some of the wire, and connect it to your car battery through some jumper cables.

I can't find my damn voltmeter, so I can't tell you which wire is hot and which is common, but the Guru is likely protected against the power wires being swapped, so if the unit doesn't light up when you plug it in, try swapping the leads to your car battery.

The adapter is good for 2 amps, so expect your car to drain at a rate of about 3 amps or so with both Gurus plugged in...IOW, run your engine every couple of hours to make sure it doesn't drain your battery. I would probably unplug the gurus when you do that to prevent any nasty spikes from getting to them from the alternator.

I'm a wussy about sleeping on overnight cooks...I woulda done it :P

Good luck on the shindig, Pete.