In this second episode of a multi-part series on Basic Electronics for Recording Engineers, I continue with the fundamental principles of electrical and electronic devices, with an emphasis on practical implications. The explanations are simple, and therefore, incomplete. But I hope it will give you some insight on what goes on inside your equipment – and in the electrical world in general.
This episode focuses on the relationship between electricity and magnetism and how that is used in our studios. I explain why our equipment requires DC to operate, but electrical power is distributed in AC form. That leads to an explanation of transformers, for power distribution, and to convert the incoming voltage to what we need. I also explain a bit about audio transformers.
Our equipment needs DC internally to operate, and I talk about how AC is converted to DC. That introduces capacitors, and their many applications in our studios. I end with resonant circuits, which form the basis of equalizers, as well as how all musical instruments work.
email: dwfearn@dwfearn.com
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