Casio Collectors

The Casio CT-6000 from 1984 was Casios first keyboard with velocity sensitive keys and midi. It also has very versatile accompaniment and can layer sounds. I always thought it was based on Consonant-Vowel-Synthesis (crossfaded stair waveforms with analogue filter, like MT-65), but some people claim it was based on phase distortion. The first official PD preset keyboard (marketet as such by Casio) was its even bigger successor CT-6500, which (how silly is this!) had no velocity sensitive keys anymore. I yet haven't bought a CT-6000 (takes much space), but it seems to be a true technical milestone.

- What are the main ICs?

If CT-6000 has sound ICs "NEC D931C", then it is definitely consonant-vowel. In oppsite to this, the phase distortion IC in my CZ-101 is "NEC D933D".

Are anywhere PCB photos online?

- Is the percussion semi-analogue or sample based?

The sound quality on YouTube wasn't high enough to identify this.


                        MAY THE SOFTWARE BE WITH YOU!

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