Electronics (Mike Jaroch)

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(1) The ratio between the amount of energy propagated from an antenna that is directional compared to the energy from the same antenna that would be propagated if the antenna were not directional [10]. (2) Any increase in the strength of a signal [18].


The number that results when the gain of a circuit is multiplied by the
bandwidth of that circuit. For an operational amplifier, the gain-bandwidth product for one configuration will always equal the gain-bandwidth product for any other configuration of the same amplifier [8].


A crystalline form of lead sulfide used in early radio receivers [7].


A meter used to measure small values of current by electromagnetic or
electrodynamic means [3] [4] [16].


The emitter-to-base current ratio in a common-collector configuration [7].


The process used to tune two or more circuits with a single control [17].


One of the three states of matter; it has no fixed form or volume [1].


As applied to logic circuitry, one of several different types of electronic devices that will provide a particular output when specified input conditions are satisfied. Also, a circuit in which a signal switches another signal on or off [13].


Circuit that permits automatic gain control to function only during short time intervals [18].


An FM demodulator that uses a special gated-beam tube to limit, detect, and amplify the received FM signal. Also known as a quadrature detector [12].

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