The electro-mechanical device which converts an electrical signal from the amplifier into a mechanical vibration of the loudspeaker radiator, causing a sound wave to be produced with the same characteristics as the electrical signal Also called a transducer
The electronics which drive an antenna are called the exciter or transmitter Together with the antenna they are called a scanner
A metal ring, normally with 100 evenly spaced teeth, although sometimes with 80 or 120 teeth, depending on tire size It is usually attached to the barrel of the hub on each ABS-monitored wheel When the wheel rotates, the teeth move past the wheel speed sensor pickup to create an electrical signal that the ECU uses to determine wheel speed Also called a Tooth Wheel