ROB WARMOWSKI: Just beneath the Galileo, we have a very interesting, again for $

. This is a speaker, okay, and this is a public address speaker, the kind that you might commonly find in the ceiling of an office building or a factory. I’m willing to bet that this is a 70-volt system. This is the kind of power requirements that these paging or intercom systems have run on in the past, but you don’t have to guess because you could just check what load and resistance is present inside these speakers simply by taking a multi meter and taking an ohm reading to begin with between these two leads right here.

Typically like they say, it’ll be probably 70 volts. Of course, at 10 bucks a speaker, and since there’s not -- you know, there’s a lot fewer than several hundred speakers here on this shelf, this is more for use -- I think the best use for this would be in a project setting where you have an art installation that required audio feedback that aesthetically, you know, matched maybe a flat surface. So, as you can see it’s flat and you could mount it. There’s screw holes right here and you could mount it vertically like this in a variety of different ways.

Connected to that of course, speaker grills. Some esthetic use here, perhaps nothing popping to mind right away for a band but you never know, and these being $1.75 a piece and they have many of them, as you can see here on the shelf, and they probably got more in the back. If you can dream up a use for a whole bunch of these, they got a whole bunch of them so that’s what American Science Center is for: to spark ideas, you come by, you take a look, and you get project ideas just by scanning the shelves.

So, I’m Rob Warmowski for Gearwire. Stick around for more American Science and Surplus coverage at Gearwire.Com.