SWITCHES

SWITCHES give you control of your device. They dont need any power to operate, so you can place them anywhere in your circuit to control where the power goes. These are some basic symbols of types of switches we will be using in our circuits. They have their own vocabulary of terms to describe how they work.

The most basic is the ON/OFF SWITCH. These are placed near the positive charge to cut off power at the source. ON creates a CLOSED CIRCUIT and OFF creates an OPEN CIRCUIT.


PUSH TO MAKE SWITCH is a button. When it is pressed down it closes the circuit, when released the circuit becomes open and the power turns off. It is called a MOMENTARY SWITCH. A button like this is used to make doorbells.





PUSH TO BREAK SWITCH does the opposite, when pressed it opens the circuit, when released it closes the circuit. It is also a MOMENTARY SWITCH. We are going to use one of these to create a silence button on the output of the oscillator, this way we can silence the speaker while switching to another frequency. This will give the oscillator a much wider range of uses when we are making music!



A MULTI WAY SWITCH can switch between different settings, on the oscillator it will be a knob. We are going to use one of these eventually to switch between different types of waves (sine wave, square wave, and triangle wave) and also to switch between different frequency ranges (100, 1K, 100K).





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