721
edits
Line 35: | Line 35: | ||
[[file: square_wave_oscillator.png]] This is the breadboard version of the square wave oscillator. The output frequency should be around 50-100Hz. You can connect this to a small speaker or headphone directly. To connect it to a Hifi amplifier input, you need to convert the output voltage from around +-4V to +-1V by using a voltage divider | [[file: square_wave_oscillator.png]] This is the breadboard version of the square wave oscillator. The output frequency should be around 50-100Hz. You can connect this to a small speaker or headphone directly. To connect it to a Hifi amplifier input, you need to convert the output voltage from around +-4V to +-1V by using a voltage divider, as shown in the second version with the potentiometer. | ||
[[file: square_wave_oscillator_potentiometer.png]] This is the breadboard version of the square wave oscillator with potentiometer and output to a +-1V (suitable for a hifi input (aux)). The output frequency varies with the potentometer. | |||
== Filters == | == Filters == |