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Pink Triangle Products Ltd was a British audio manufacturer specialising in high end turntables. It was founded in London in 1979 by Neal Jackson and Arthur Khoubesserian, both gay men. Jackson chose the name 'Pink Triangle' after the symbol used for homosexuals by Nazis in concentration camps. Initial manufacturing took place on an industrial estate in Maidstone Road, Sidcup, Kent and later at Lomond Grove, Camberwell, London. Very few of their first product, referred to as the Pink Triangle Original turntable, were produced. This product and some of the later models included some then very innovative design features. It had a spring suspended and isolated 'aerolam' (a very light and stiff aluminium honeycomb structure developed for and first used by the aircraft industry) sub-chassis that coupled the platter/bearing assembly with the tone-arm. The wooden plinth was topped with a 3 part mirror glass plate that covered an aluminium frame providing mounting points for the suspension and DC motor. A mains socket mounted transformer/rectifier provided power. By a shaft mounted aluminium pulley, the motor drove the platter assembly using a flat rubber belt wrapped around a recessed face machined into the underside of the acrylic platter (another innovation). The thrust element of the bearing was formed by a ruby sphere mounted in the bearing spindle against a ruby cup mounted in top of the aluminium support sleeve for the platter. The bearing was positioned close to the centre of gravity of the platter with side load being carried by a lower 'plastic' sleeve against the bearing spindle. The next product, referred to as the PT1, is often mistakenly assumed to be their first product. The PT1 was a cost reduced version of the 'Original' having the glass top plate replaced by a black painted aluminium plate to which the DC motor was mounted. This turntable was in production from 1979 until 1985. Some later models featured a battery-operated power supply. Pink Triangle turntables were highly praised by the audio press and sold in significant quantities but were never as commercially successful as the similarly priced Linn Sondek LP12 it competed with. In later years the company also manufactured amplifiers, digital-analogue converters and Compact Disc transports, however they did not sell in sufficient numbers to offset their manufacturing and research expenses. The company folded in 2003. ==See also== * List of phonograph manufacturers 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Pink Triangle (audio manufacturer)」の詳細全文を読む スポンサード リンク
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