Amstrad Fidelity computerphonic ckx 100 keyboard Zeldzaam
Playright mode computer aided harmony
Werkt naar behoren, geen gebreken, geen voeding, kan op batterijen.

• 49 midsize keys
• 2 built-in speakers (sound bright and fairly bassless, stereo)
• main voice polyphony 8 notes (only 3 with accompaniment, 1 in trio mode)
• 10 semi- OBS preset sounds {elec piano, synth 1, guitar, flute, bells | brass, synth 2, harpso, organ, strings}
• 28 preset rhythms {r & b, hi-tec, pop, swing 1, dixie, samba, march 1 | rock 1, disco, funk, swing 2, hoedown, salsa, march 2 | rock 2, reggae 1, hip-hop, bounce, country, bossa, waltz 1 | boogie, reggae 2, heavy metal, ballad, barock, pop-cha, waltz 2} (selected in a sequence by 7 group + 1 select button)
• volume & separate rhythm accomp volume slider
• vibrato & sustain button
• trio mode ("auto harmony" button)
• single finger accompaniment (manual chord mode with rhythm off)
• "playright" mode (switches keyboard to pentatonic scales selected by the current single finger chord)
• tempo +/- buttons (21 steps)
• rhythm fill-in button
• keyboard drum kit mode only during demos {whistle, hand clap, dog, cowbell, bell} (each 3 pitches)
• many orange, green & yellow LEDs
• main voice sound is based on 2 layered static digital waveforms with independent simple envelope; with some low tones mild sample aliasing noise gets audible. The sound is stereo; the 3rd keyboard octave is panned to the center, lower notes only to the left channel and higher notes only to the right. Percussion is made from thin sounding low resolution samples.
• complex multi- chip hardware (crystal clocked):
• CPU= "8J2, HD63B03XP, Japan" (64 pin DIL)
• IC8 (sound IC)= "ST, M114S, 28832" (40 pin DIL)
• IC5 (RAM?)= "KM6264AL-10, 844, Korea" (28 pin DIL)
• IC4 (EPROM) ="VER. 2.22 4D37" (28 pin DIL)
• IC7 (EPROM) ="VER. 11.5 19R7" (28 pin DIL)
• IC9 "KIA7769P, 8L" (16 pin DIL)
• 8 KByte RAM, 48 KByte ROM
• simple sequencer (polyphonic record/ playback with accompaniment, no edit)
• 7 long and complex orchestrated demo melodies (those mute their main voice during manual play)
• jacks for AC- adapter, phones, line out, tape data saving, MIDI out