The Seku by Mauno Tuominen (http://www.studiomanus.com/seku.htm)."
"Heart of SEKU is CMOS 4520 dual synchronous divide-by-16 counter. RESET-in-jack must be normalised to ground when not used (16-step mode). Length of the sequence can be set to N by patching PULSE OUT from N+1 step to RESET IN jack. When no clock is connected to CLK IN sequencer can be manually stepped from STEP button.
CMOS 4067 1-of-16 analog switch is used for GATE, CV and PULSE outputs. Inhibit-pin of GATE OUT 4067-switch is clocked at the same frequency as the 4520 with 4001 nor-gate turning each GATE OUT off before turning the next GATE on. You can mute any one of the 1-16 steps with the STEP MUTE switch."
video upload by sigmambient
"Self made analog step sequencer controls Korg MS10 and Roland S100M synthesizers. First row controls MS10 pitch and S100M noise-drum gate. Second row controls MS10 filter-cutoff.
Synthesizer sounds are modified live when sequence is running. More information about SEKU and Sigma on www.studiomanus.com"
You might remember the SEKU from these posts (scroll).
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