Electronics (Mike Jaroch)

Transconductance is a ratio of the change in plate current to a change in grid
voltage with the plate voltage held constant. Transconductance (gm) is usually expressed in micromhos or millimhos.

A device composed of two or more coils, linked by magnetic lines of force, used to transfer energy from one circuit to another.

STEP-DOWN—A transformer so constructed that the number of turns in the
secondary winding is less than the number of turns in the primary winding. This construction will
provide less voltage in the secondary circuit than in the primary circuit [2].

STEP-UP—A transformer so constructed that the number of turns in the secondary winding is more than the number of turns in the primary winding. This construction will provide more voltage in the secondary circuit than in the primary circuit [2].

The ratio of output power to input power, generally expressed as a
percentage.

A semiconductor device with three or more elements [7].

The time an electron takes to cross the distance between the cathode and the plate [6] [11].

The time it takes to shift from a mark to a space condition or from a space to a mark condition [17].

In a gyro, a force acting through the center of gravity of the gyro that causes no torque on the gyro rotor. Translation forces do not change the angle of the plane of rotation but move the gyroscope as a unit [15].

Those substances, such as frosted glass, through which some light rays can pass but through which objects cannot be seen clearly [10].

A device designed to guide electrical or electromagnetic energy from one point
to another [10].

A means of transferring intelligence from point to point; includes light, smoke, sound, wire lines, and radio-frequency waves [10] [12].