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Oscillation won't pass voltage buffer

This is the full schematic of the circuit Full size: http://img443.imageshack.us/img443/9292/fulltheremin.png It didn't work on the first try. A theremin is an electric instrument which emit a ...
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1answer
164 views

Types of amplifier - what is the difference?

What is the difference between an open loop amplifier and a voltage follower (unity gain buffer)?