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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.
The drive system designed by Matsushita is direct-drive rather than the more commonly found belt-drive type, a less expensive design. The direct-drive design, which was developed to reduce wow and flutter, produces a very quiet turntable that, for a direct-drive turntable, has minimal motor and bearing noise, (although the bearing rumble does ...
Serpentine belt (foreground) and dual vee belt (background) on a bus engine Belt tensioner providing pressure against the back of a serpentine belt in an automobile engine. A serpentine belt (or drive belt [1]) is a single, continuous belt used to drive multiple peripheral devices in an automotive engine, such as an alternator, power steering pump, water pump, air conditioning compressor, air ...
Type: fully automatic turntable Drive method: direct drive Motor: DC motor Drive control: quartz phase locked Platter: 300mm aluminium die-cast Speeds: 33 and 45rpm Wow and flutter: 0.025% WRMS Rumble: -78dB Tonearm: linear tracking tonearm with 4-pivot gimbal suspension Effective length: 105mm Cartridge: moving magnet Tracking force: 1.25g ...
In a belt-drive turntable the motor is located off-center from the platter, either underneath it or entirely outside of it, and is connected to the platter or counter-platter by a drive belt made from elastomeric material. The direct-drive turntable was invented by Shuichi Obata, an engineer at Matsushita (now Panasonic). [60] In 1969 ...
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It eliminated belts, and instead employed a motor to directly drive a platter on which a vinyl record rests. [12] In 1969, Matsushita released it as the SP-10, [12] the first direct-drive turntable on the market, [13] and the first in their influential Technics series of turntables. [12] In 1971, Matsushita released the Technics SL-1100.