HM1983mk2 - Dual Linear Feedback Shift Register Battery

Dual-clock LFSR battery with external inputs and mixers. Suitable for the generation of random gates, digital noise, and pitched tones in the same manner as the classic Atari "POKEY" sound chip, with fully editable timbre for each of the eight outputs. The sound configuration is visually represented on a bar graph display, and a rotary encoder facilitates quick editing of each output. The Zorlon Cannon enables efficient exploration of the musical and statistical properties of LFSRs up to 16 bits in length.

You can construct more complex sounds and sequences entirely in-module, by using one half of the module to clock the other. By using the onboard mixer to combine four channels into one, you can achieve dense drones, random CV sequences, or a precisely constructed flavor of digital noise. There are two clock generators each driving four outputs, with each half able to operate independently in several frequency ranges.

Zorlon Cannon mark II features, compared to the original, an external clock input, a stronger internal clock generator with better CV control, and a fully editable and storable output configuration. The functionality of the Qotile Ultimatum mix expander has been added to each half of this edition of the module.

When combined with a Tyme Sefari Mk ][, you may have the most fun you've EVER had with your modular system.


  • Two independent clocks each driving 4 outputs.
  • Top section is optimized for gates, bottom section is for audio tones.
  • Internal clock generators have three frequency ranges and 1v/oct tracking.
  • For cleanest audio and synchronized gates, an external clock input is provided.
  • External clock input features optional PWM (sensitivity to both rising and falling edges).
  • 4-channel attenuverting mixer mixes outputs to one bipolar signal, with center detents.

Each output is editable for shift register length and tap configuration, with the state of all 8 outputs storable in one nonvolatile preset. A gate input is provided for re-seeding the shift registers, to cause non-maximal tap configurations to "jump" into otherwise inaccessible sequences.

  • 90 mA +12V
  • 20 mA -12V
  • ? mA 5V
  • 25 mm deep
  • Ø 4.62 (13 Votes) Average Rating

This Module is currently available.

$425 submitted Dec 29th 2012, 00:14 by exper | last Change Oct 24th 2017, 23:36 by dysonant

Date Region Description Price Seller
EUThe overall condition of this *The Harvestman Zorlon Cannon MKII* is *like ne...€280,00Symbiosis View
CanadaDual-clock lfsr battery with external inputs and mixers. suitable for the gen...$327.95 View

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