via this auction
"Sidrolz5 is a beautiful one off instrument built by Meng Qi, containing a Sidrax board and 1 set of 5-rolz per Sidrax oscillator. Can be played by touching the bare nana sockets or rhythms can be set up with patching banana cables (not included).
Requires 12vdc power with positive tip (not supplied) and has stereo 1/4" out.
A little more background-
Each sidrax oscillator has a triangle oscillator output, FM in, and two glitch inputs.
The FM inputs have a cap on input to work with the 5-rolz sandrodes below each oscillator to allow for for momentary pitch movements in time with the rolz rhythms (without the caps the rolz just send the oscillators straight to lowest pitch). Some of the FM ins have had the caps bypassed so they can be sequenced via an external, more traditional step sequencing method - e.g. I was using bugbrand CTL1s but korg SQ-1s and whatever else works with appropriate cabling with 0-10v CV range).
The two right most banana sockets are master pitch and master chaos CV inputs. The two large black knobs are master volume and master chaos. The right most knob is master pitch, all other knobs are individual oscillator pitches. Each of the bare potentiometer stems in the pictures have now been capped with knobs.
Each 5-rolz column is hardwired internally to the piezo in/vca of each oscillator- so touch playing is possible, but patching rolz together can yield both repeating and non repeating patterns. No touching and no patch cables means the instrument is silent."
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