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In a direct-drive turntable the motor is located directly under the center of the platter and is connected to the platter directly. It is a significant advancement over older belt-drive turntables for turntablism, since they have a slower start-up time and torque, and are prone to wear-and-tear and breakage, [5] as the belt would break from backspinning or scratching. [6]
The functional relationship between the drive belt, sub-platter, and motor pulley, can be seen through the glass platter on a Rega Planar 3.. There are three main types of phonograph turntable drives being manufactured today: the belt-drive, idler-wheel and direct-drive systems; the names are based upon the type of coupling used between the platter of the turntable and the motor.
Early belt-drive turntables were unsuitable for turntablism, since they had a slow start-up time, and they were prone to wear-and-tear and breakage, [9] as the belt would break from backspinning or scratching. [10] The first direct-drive turntable was invented by Shuichi Obata, an engineer at Matsushita (now Panasonic), [11] based in Osaka ...
Most users remove the rubber turntable mat and replace it with a slipmat for mixing. However, without the rubber mat, the platter is prone to resonance at 250 Hz when used near a large club sound system. The drive system designed by Matsushita is direct-drive rather than the more commonly found belt-drive type, a less expensive design. The ...
The record deck is single speed – it runs at 33 rpm, and the user must physically remove the platter to reposition the drive belt to play 45 rpm records. [ 11 ] The two major changes to the Planar 3 during its life were firstly the inclusion of the higher quality Rega RB300 tonearm in the 1980s, and the change to a new AC synchronous motor ...
A turntable for the Central Railroad of New Jersey. Turnplates at the Park Lane goods station of the Liverpool and Manchester Railway in 1831. Early wagonways were industrial railways for transporting goods—initially bulky and heavy items, particularly mined stone, ores and coal—from one point to another, most often to a dockside to be loaded onto ships. [4]
The Audio-Technica AT-LP120 is a mid-range direct-drive turntable introduced in 2009 by the Japanese audio equipment manufacturer Audio-Technica.The AT-LP120 was intended to be a viable replacement for the long-running Technics SL-1200 series of turntables that was set to be discontinued in 2010.
The open belt drive has parallel shafts rotating in the same direction, whereas the cross-belt drive also bears parallel shafts but rotate in opposite direction. The former is far more common, and the latter not appropriate for timing and standard V-belts unless there is a twist between each pulley so that the pulleys only contact the same belt ...
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