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The Stylophone is a miniature analog stylus-operated keyboard. Invented in 1967 by Brian Jarvis, it entered production in 1968, manufactured by Dubreq. It consists of a metal keyboard played by touching it with a stylus—each note being connected to a voltage-controlled oscillator via a different-value resistor—thus closing a circuit. The only other controls were a power switch and a vibrato control on the front panel beside the keyboard, and a tuning control on the rear. Some three million Stylophones were sold, mostly as children's toys. The Stylophone was available in three variants: standard, bass, and treble, the standard one being by far the most common. There was also a larger version called the 350S with more notes on the keyboard, various voices, a novel 'wah-wah' effect that was controlled by moving one's hand over a photo-sensor, and two styluses. In the mid-1970s a new model appeared which featured pseudo-wood on the speaker panel and a volume control. This was shortly before the Stylophone ceased production altogether in 1975. The entertainer Rolf Harris appeared for several years as the Stylophone's advertising spokesman in the United Kingdom, and appeared on many "play-along" records sold by the manufacturer. ==2007 revival== In October 2007 toy company Re:creation, in conjunction with Dubreq Ltd (re-formed in 2003 by Ben Jarvis, the son of the original inventor), re-launched the Stylophone, 32 years after the original had ceased to be manufactured. The new model, officially called the S1, is a digital copy that closely resembles the 1960s original but has a volume control and features an audio throughput function, as well as sporting two new sounds. 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「stylophone」の詳細全文を読む スポンサード リンク
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