crucFX LabRolzer DIY PCB - Based on Plumbutter Rolz/LabRolz

LABROLZER (Formerly PLUMROOLZ) is a project I designed based on ciat-lonbarde's Rollz-5 Paper Circuits and Roolz-Gewei Labrolz Papers.

This circuit is similar to the CV Controllable Rollz found on the Plumbutter though it is a full column of 6,3,4,5,6-Roolz instead of just 3 and 4 rolz.

Each Rolz has a series of Brown Sandrodes that are meant to inter-connect to one another, as they are androgynous nodes.
These Sandrodes are NOT meant to be patched into anything other than other Sandrodes.
(Unless you are running them into other paper circuits that can handle the Negative Spikes. - These Sandrodes could potentially damage your Modular gear. Please use caution when patching.)

Each Rolz has 1 Positive Pulse Output that can be used as a Trigger, Gate, etc. with normal Modular equipment.

Below each series of LabRolz is a Verso and Inverso Input - Verso being a Positive CV Input, and Inverso being the opposite.

Each LabRolz has a Tempo Knob that will alter the cyclic behavior of the Rolz multivibrator.

LABROLZER can be Powered with a 9v Battery or a 12v DC Wall Adapter (Center Positive). 
(Please see BOM for wiring guide)

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A little bit about CV based Rolz and the Arp-Serge Assemblage.

From Peter's Labrolz Papers:
" The original paper rolls were not voltage controlled, preferring instead “capacitance controlled”. That meant that a highly Baroque process of building many rolls with randomized capacitors allowed the eventual patron of the instrument to develop a sort of muscle memory towards drum speeds that were pleasing, as a psychological map of capacitance relationships on the geometries unfolded over time. Ha! The first laboratory kaizen was to eliminate this Baroque mannerism and replace it with standard voltage control, including a knob for each one. The “Arp-Serge Assemblage” is the main current control of any module. Here it is in the top left corner, for the 4 roll, and the bottom right corner, for the 3 roll. It is like before, the rolls were without this “parasite”, and they ran as viruses; their power was only in their geometries/their structure. Now, their power is in their brain. Rudolph Steiner once pointed out that the head is like another organism on top of the body. This brain has been grafted on and the rolls now can interact with other animals, through inputs, labeld VER and INV, for verso and inverso. These feed into a differential pair, which is the primary propulsion of any Serge module. Note there is a 225 resistor to ground from any VER input, and this is called the Serger. The Serger brings the unmodulated action of the differential pair down, so it seems as if a perfect exponential curve without saturation at the top. Now beneath this Serge business, at its emitter tail, is an Arp exponential current generator. It too is a composition of two transistors, but whereas the differentials were both NPN, now there is one NPN and PNP. They are complimentary transistors, thus temperature compensating, and they may be trans-linear too. Its base is set by a pulling resistor., classed into two tiers- strict laboratory and multi-vibrator. These rolls are multivibrators, as well as Ultrasound, which we will get to later. These look like buns at Cinnabon! The cinnamon swirl is actually the base of a huge parallel “Wilson” Current Mirror, which kaizens with butter the rolls to become VCOs! The butter is the Arp-Serge Ass.. This capricious circuit theory started in the Enoch Pratt Free Library, in Baltimore, inside a dusty book by Delton T. Horn, named simply, “Oscillators”. In it, he details many laboratory oscillators, including the worthy two transistor multi-vibrator. Delton did detour in a short paragraph about a “3 transistor multi-vibrator [that] produces exotic tones”. He explained that its behaviour is not quite predictable and changes wildly based upon the current injected at each base. Wild changes (current controlled!) are the hallmark of a chaos vortex, and this one is stimulated by a simple paradox: three is an odd number. Let me explain. Each stage on a multi-vibrator is an inverter. So, with an even numbered multi-vibrator, starting at a stage that is ON, the next node is OFF, and if it is two stages, back to the first one, which is ON again. It is self-reinforcing. However, thinking about a three stage multi-vibrator, ON, OFF,ON; the start is now OFF when it was ON! This oscillator contains a paradox, so it spirals out of control, into ultrasound frequencies with much noise. If you connect it with the nodes of an even one, well, you get a combo of rhythm and noise, thus a drum-machine is bourne. There is a raisin for every stage. A raisin is an asterisk, is a banana jack. On each cinnamon roll, there is one CV output (orange jack) and the rest are pulse-nodes (brown), which means they are both input and output (androgynous) dealing in pulses- transient negative spikes."

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This is an advanced DIY Project and should really only be built by those with at least some experience within the ciat-lonbarde DIY realm.

Includes:
LABROLZER PCB
BOM

Thanks for checking out my listing!