Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. An electronic circuit or device that detects and strengthens weak signals, as from a radio receiver, for subsequent, more powerful amplification stages.
Wiktionary
Examples
“Very strong FM stations can overload a DTV receiver or antenna preamplifier just like very strong TV stations.”
“This flagship of the Fatman range comprises of the Fatman Controlroom preamplifier with three line inputs and one phono input and two Fatman Engineroom Mono Block amplifiers, each delivering 200w of pure tube power.”
“There are some new modern ribbon microphone designs which incorporate a preamplifier and therefore do require phantom power, also there are new ribbon materials available that are immune to wind blasts and phantom power.”
“If you like to solder, you also could use an mp3 recorder with line-in with two mics through a selfbuilt mic preamplifier and tiny condenser mics.”
“Yes Jonatan, “To interface a standard professional microphone with the Macintosh sound input port, a preamplifier must be used to boost the output level of the mic (typically less than 1 millivolt) to the level required by the sound card (about 100 millivolts).””
“BUT - the *circuitry* for a headphone driver is not the same circuitry as for a preamplifier/ADC - which is what you need in order to record.”
“This little model has a preamplifier, a twenty-three-bit analog-to-digital converter with a one hundred and thirty-eight decibel dynamic range.”
“Later Lionel sent me a very valuable present, valuable not for its cost but for the fact that it was something quite unobtainable in Greece at that time -- a very low-noise preamplifier for 2 metres.”
The Dawn of Amateur Radio in the U.K. and Greece: a personal view
“But it was many years later, using a low noise GASFET preamplifier.”
The Dawn of Amateur Radio in the U.K. and Greece: a personal view
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