Final answer:
Analog-to-analog converters are devices that take one type of analog signal as an input and produce another type of analog signal as an output.
Step-by-step explanation:
The type of device that has one type of analog signal as an input and produces another type of analog signal as an output is a/an analog-to-analog converter. This device is used to convert one form of analog signal, such as voltage or current, into another form of analog signal.
For example, an audio amplifier is an analog-to-analog converter that takes an analog audio signal as input and produces an amplified version of the same analog audio signal as output.