What is a gramophone amplifier?
The rotary table amplifier, also referred to as the FONO preamplifier, is a unit that passes between the record player and the preamplifier or an integrated amplifier. This device amplifies a weak turntable signal, which is an equivalent signal at the line level, such as signaling the CD player, DVD players and cassette decks. Since the outputs from record players also have a very output output to balance the recording of America (RIAA) recording, the amplifier from the turntable adjusts the tonal characteristics of the signal to be more accurate. These were vinyl discs, 12 -inch diameter, which contained a groove representing the course of music. The needle rode in the groove and transmitted the signal by moving between the magnets in the cassette to the desktop. The swivel table then sent this signal of the rest of the system that had a built -in rotating table amplifier to put the signal to the line level.
Mine players were also a challenge of their low signal levels. In order to effectively handle the LP record, sound engineers needed to maintain a wavelength represented by a groove of roughly the same size, no matter what frequency it represented. Since height signals have less wavelengths than bass signals, engineers invented the RIAA leveling curve. As a result, the height signals were significantly louder to take up more space in the groove, while the bass signals were significantly quieter, which occupies less space in the groove. The amplifiers also had built -in circuits to reverse the RIAA leveling, returning the bass and heights to their correct levels.
As at the end of the 20th century, the popularity of LP records disappeared, manufacturers stopped building ampl o Gramophonifier into receivers, integrated amplifiers and preamplifiers. Listeners who want to continue playing LP records now need a separate device to signal the signal and eliminate RIAA amplification. These devices areOften a small box with a pair of phono connectors as an input from the rotary table, a few phono connectors as an output to the preamplifier or receiver and power cord. Once they are connected to the rotary table and a modern receiver or preamplifier, they bridge the gap between the phonograph exposed to Edison and today's top sound device.