Semi-conductor devices with three electrodes. Electronic switches and amplifiers.

The relationship between the dimensions of two components where one fits inside the other. In this instance the fit is one where the inner dimension of the outer component is the same as the outer dimension of the inner component. Also known as a push fit.

Allowing light, but not detail to pass through. Semi-opaque

(1) (US: gearbox) Mechanical unit containing a manual or automatic change speed gear system and associated actuating machinery. (2) (UK) Collective term for the components, such as clutch, gearbox, drive shaft, whereby power is transmitted from engine to driven wheels (mainly UK usage).

The oil used in a transmission system - several types are used so always check data.

Usually used to describe the overall ratio of the transmission - from the engine to the wheels.

Device that outputs a signal, usually a radio signal (TV or radio transmitter) but in some cases wires are used (temperature transmitter for example).

Clear/clarity; Allowing light and detail to pass through; Not opaque.

Any axis running across a vehicle or other object at right angles to the longitudinal axis.

Any axis running across a vehicle and parallel with the ground and at right angles to the longitudinal axis of the vehicle.