File:Casiotone 405 (1983).jpg

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Casiotone  405  (1983)

along with the mid-size keyboard version Casio MT-65 (1983),
first keyboards using of the “classic” NEC D930/D931 family [1]
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Source Flickr: Synth
Author Jake Mohan
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This image, which was originally posted to Flickr, was uploaded to Commons using Flickr upload bot on 30 January 2012, 00:20 by Clusternote. On that date, it was confirmed to be licensed under the terms of the license indicated.
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Further reading
  • History of Casio Keyboards, Part I: 1980-1983. gen.error - vintage home keyboards of the 1980s and 1990s (2010-07-05).
    "1983: ROM-Packs & Infinite Possibilities ... Casio released the Casiotone 405 and its mid-size brother, the Casio MT-65 in 1983. These were the first keyboards of the “classic” NEC D930/D931 family, which undisputedly is the most versatile and successful hardware in Casio’s history. Especially the accompaniment chip D930G, already used in the MT-45, is pure genius: With 12 basic rhythm/accompaniment patterns, switchable arpeggio, and four independently selectable patterns for bass, chord and arpeggio, this gives you over 1,500 accompaniment patterns (3,000 when you count rhythm-only as accompaniment) — an incredible number at that time, and impressive still today. (The first wavetable keyboards in 1989 had no variations at all.)
      The main voice chip NEC D931C fades in comparison, but with its 20 presets, vibrato/delayed vibrato, sustain/reverb, and two envelope variations per voice (the latter only on the Casiotone 405), this still makes 360 voice variations in all. I know of no other home keyboards with such a wealth of options. As with all Casios of this time, all of the controls are simple analog switches and sliders, which makes these keyboards perfect for live play, creative exploration and experimentation.
      Apparently, the same chips were also used in two advanced keyboards with 61 fullsize keys, the Casiotone 610 and the high-end Casiotone 7000, both the first stereo keyboards by Casio. Although both feature the same sound and rhythm preset names, both come with only very few accompaniment variations and only sustain as effect. ...
      While Casio had constantly changed their hardware for their home keyboard, the D930/D931 “dream team” became the basis for all mid- and fullsize Casio keyboards until at least 1986.
    "

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current00:20, 30 January 2012Thumbnail for version as of 00:20, 30 January 2012612 × 612 (105 KB)Flickr upload bot (talk | contribs)Uploaded from http://flickr.com/photo/70761351@N00/6744789071 using Flickr upload bot

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