- A circuit or device which multiplies a number of pulses, cycles, signals, or other input quantity, by a fixed number, such as 2 or 10. For example, electron, frequency, or voltage multipliers.
- An electron tube in which secondary electron emissions produce current amplification. In it, a cathode releases primary electrons, which are then reflected by multiple electron mirrors, or dynodes, each producing more and more electrons. Depending on the number of dynodes, the amplification factor may be in the millions. Also called electron multiplier, or secondary electron multiplier.
- A circuit or device whose output signal frequency is an exact integer multiple of its input signal frequency. For example, such a circuit could convert a 10 MHz signal into a 30 MHz signal with the use of a frequency tripler. Also called frequency multiplier.
- A component or circuit whose voltage output is a multiple of its input voltage. For example, a rectifier circuit which delivers a DC output voltage which is a multiple of the peak of its input AC voltage. Also called voltage multiplier (1).
- A precision resistor utilized in series, to extend the voltage range of an instrument such as a voltmeter. Also called multiplier resistor, or voltage-range multiplier (2).
- An already present number by which another is multiplied. A multiplicand is a newly introduced number which multiplies the multiplier. For instance, in 13 × 3, the multiplier is 13, while the multiplicand is 3.
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