We will end our discussion of amplification by discussing partial circuits. Oftentimes you will need to design a circuit which connects to another circuit, either powering it or receiving power from it. For instance, in the amplification circuits from Chapter 25, the outputs were connected to a speaker. They could also be connected to another amplifier or to a stomp box (a device to modulate the incoming signal in some way) or to a recording circuit.
26.1 The Need for a Model
In order to connect circuits together, we need to be able to describe, in general terms, the ways that ...
