Electric Circuit Experiments: Breadboard Configuration for Oscillator

Video Transcript

"Alright, so we're putting together a simple square wave oscillator with one chip, with seventy-four HC14 chip. And what we're going to do now and finish this up is we're going to put in our resistor right here. This is our twenty-two K resistor. We are going to put it between pin one and pin two and there we have a connection. Between pin one and pin two is this resistor connecting up. Then I take my capacitor and I take the long lead which is the positive lead and I connect that up to anywhere in the row here where pin one is. Pin one is indicated by this dimple again, and I connect the long lead in there. Then I connect the short lead to my blue rail right here. To my blue pins and that is going to provide grounds for that capacitor. Now we have an oscillating circuit. All I need to do is hook it up to my speakers. I hook one; I hook the sleeve of my speaker right here. The sleeve is the very end of the connection right there. Up the ground and I hook the tip up to my resistor. Turn on my speakers and we should get some oscillation going on. But these oscillators are used very, very, very commonly. They're used in televisions; they're used to control signals. Now I see I've got a different wire going here. Used in televisions, to control signals, they're used in cell phones, most notably though they're used in musical instruments to create tones. They're used all over electronics. Driving the heart and soul of various things. So let's see if we can get some sound out of this guy at this point. Alright so let's see what's going on here. I am going to connect up the tip of my audio speaker circuit with pin two here on my chip and there I've got a low frequency coming out. So my oscillator is working. Now I can use this oscillator as an indicator of the electrolytic capacities of these materials we're playing with today."