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XO106r5 (RUN 2): Quad square-wave drone module with patchable logic and filter - PCB/panel/firmware set (22HP)
XO106r5 (RUN 2): Quad square-wave drone module with patchable logic and filter - PCB/panel/firmware set (22HP)
XO106r5 (RUN 2): Quad square-wave drone module with patchable logic and filter - PCB/panel/firmware set (22HP)
XO106r5 (RUN 2): Quad square-wave drone module with patchable logic and filter - PCB/panel/firmware set (22HP)
XO106r5 (RUN 2): Quad square-wave drone module with patchable logic and filter - PCB/panel/firmware set (22HP)
XO106r5 (RUN 2): Quad square-wave drone module with patchable logic and filter - PCB/panel/firmware set (22HP)
XO106r5 (RUN 2): Quad square-wave drone module with patchable logic and filter - PCB/panel/firmware set (22HP)
XO106r5 (RUN 2): Quad square-wave drone module with patchable logic and filter - PCB/panel/firmware set (22HP)
XO106r5 (RUN 2): Quad square-wave drone module with patchable logic and filter - PCB/panel/firmware set (22HP)

XO106r5 (RUN 2): Quad square-wave drone module with patchable logic and filter - PCB/panel/firmware set (22HP)

Regular price £39.99 £0.00 Unit price per
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COMPLETE MODULES ARE NOW ON A BUILT-TO-ORDER BASIS - contact me in the first instance. The current cost of a fully assembled module is £140

The XO106r5 is a logical progression from its predecessors - although it no longer contains any 40106 ICs, it's still a good source of square-wave glitchiness along with a filter should you want to round off some of the rough edges.

It's also a lot bigger - 22HP.

The salient features are:

  • 4 AVR-based square-wave oscillators with V/oct response good for around 5 octaves. There are fine-tune pots on the back side of the PCB. It won't give you perfect tracking, but it's 'good enough' (don't like it? hack on the firmware)
  • Voltage-controlled pulse width for each oscillator
  • Oscillator firmware is available under a permissive license.
  • Patchable Sallen-Key low-pass filter - use it, or don't; it's something of a nod to the previous incarnations of the module (note that this is not a VCF - if you want that sort of thing, you can easily patch to an external filter module)
  • Patchable logic matrix - this is the big step from the previous versions. The oscillators are no longer hardwired to the logic IC; you can patch things together how you want, or not at all. The logic IC itself is socketed so you can replace it with a different, pin-compatible, IC should you wish to change the voicing of the module. The 'default' option is a CD4070 (quad XOR) but alternatives include the 4001, 4011 and 4093.

THERE IS A DIY OPTION AVAILABLE - this consists of a PCB, a front panel and a set of 4 firmware ICs. It is up to you to source the rest of the components. A schematic can be found on Github, right here: https://github.com/yorkmodular/xo106r5

The terminally curious can view Johnny Beaver's demo of a prototype unit in action on YouTube ... 'production' units will have my usual purple/ENIG FR4 panels.


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