Dictionary of Computer and Internet Terms: wall transformer
wall transformer
a small transformer, often including other powersupply components, that plugs into a wall outlet (Figure 294).
Most wall transformers are designed to burn out harmlessly when overloaded; there is no replaceable fuse. A dead wall transformer is a common cause of inoperative equipment.
It is very important not to substitute wall transformers unless you are sure that the replacement delivers the same voltage with the same polarity (arrangement of + and - connectors) and the same or greater maximum current (amperes, milliamperes). Equipment can be damaged by using the wrong power supply.
