ABSTRACT
This chapter introduces naturally stick close to the novice end of the spectrum. They should however provide sufficient insight and understanding to allow the reader to extend their explorations to whatever level and in whatever direction they so desire. Some of the key circuit types and classes are listed under each of the three headings: sound producers, sound modifiers and sound amplifiers. The chapter includes an example from each of these three circuit categories which is presented as projects. This gives a flavour of the range of audio projects which can easily be undertaken by the novice electronics experimenter. In electronics there are many ways to build an oscillator. This particular one is what is called a phase shift oscillator. When a signal passes through a capacitor it experiences a frequency dependant shift in its phase due to the lag introduced as the capacitor is charged and discharged.
