Electronics (Mike Jaroch)

A method for simultaneous transmission of two or more signals over a common
carrier wave [17].

The number of times an input frequency is multiplied [12].

Systems that transmit data at different transmission speeds; for example, dual-speed and tri-speed synchro systems [15].

An electron tube containing two or more units within the same envelope. The
multiunit tube is capable of operating as a single-unit tube, or each unit can operate as a separate tube [6].

A form of relaxation oscillator which comprises two stages that are coupled so that the input of one is derived from the output of the other [9] [13].

An astable multivibrator used to provide frequency modulation. The modulating af voltage is inserted in series with the base return of the multivibrator transistors to produce the frequency modulation [12].

The total flux in the core of a transformer that is common to both the primary and secondary windings. The flux links both windings [2].

A circuit property existing when the relative position of two inductors causes
the magnetic lines of force from one to link with the turns of the other. The symbol for mutual inductance is M [2].