The DK1, produced in 1969, is an early 37 note velocity-sensitive monophonic keyboard, created for VCS3 with an extra VCO and VCA. In 1972 it was extended for duophonic play as DK2. The DK2 has two independent channels of CV, these can set to different modes, and the keyboard has its own built in VCO for modulation options, plus as “Dynamic Channel’ output. The ‘Dynamic Channel’ can actually be set to control almost any facility on the Synthi or VCS3.
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