Learn About Pole & Throw Switches for Circuit Bending

Video Transcript

AMANDA CLAIRE: So, when you use those momentary push button switches, remember, you have to actually push it or release it in order to make or break the circuit, depending on what kind of switch it is. The other kind of switches that you're familiar with, I mean the light switch in your house is an example of one, is one that you just flip into a position and it stays there. But the thing is those switches are not all the same, right? And so, different kinds of switches have different applications. So, in order to understand that, we need to understand 2 concepts. One is the concept of pole, P-O-L-E, which basically means how many sets of electrical contacts there are which determines how many circuit completion or breaks that that switch can make, okay? So that's the pole. The "throw" is the number of different positions that that switch has, okay? So, an on/off switch, it really only has one throw to on and, otherwise, it's off, whereas a switch that's like an either/or switch that let's you select either one sound or the other, is a double throw switch. So, in the next clip, I'll kind of break this up a little bit more, so you kind of understand the difference between single pole, double pole, single throw and double throw switches.

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