Analog Replicator Delay - 16HP

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Item: N13-3438

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Analog Replicator Delay - 16HP


Our original Analog Delay module grew out of the circuitry of a guitar pedal. Our new Analog Replicator module does not share the same stompbox lineage. Michael Johnsen, Pittsburgh Modular's analog engineer, created a modern BBD core fed by a unique clock source and proprietary signal processing circuits. The result is a flexible, more musical, eurorack delay module.At the heart of the Analog Replicator is a pair of 4,096 stage BBD chips. The name BBD stands for [B]ucket [B]rigade [D]evice in reference to a line of people passing buckets of water to quickly extinguish a fire. Each stage of a BBD chip contains a single capacitor. Pairing two chips together creates a chain of 8,192 capacitors. Like the water buckets, an audio signal is passed from capacitor to capacitor within the BBD chips once every clock step. A slower clock produces a longer delay and a faster clock produces a shorter delay. The controls of the Analog Replicator can be used to produce a wide range of delay effects. The STAGES switch flips between 4,096 and 8,192 BBD stages. 4,096 uses a single BBD chip and 8,192 uses two. Using both BBD chips doubles the available delay time, perfect for echos and longer delays. Using a single BBD is useful for reverb and chorus effects. The SHORT/LONG switch drastically adjusts the delay range. Using a single BBD, the SHORT range varies between 10ms and 175ms and the long range varies between 10ms and 1300ms. The SHORT mode produces bright, clean analog repeats. LONG mode is dark and grimy. Mud and clock noise (whine) begin to leak in and eventually take over as the Analog Replicator reaches the longest available delay time. The design of the Analog Replicator allows it to mimic Chrous and Reverb effects. Setting the switches to 4,096 and SHORT, adjusting the TIME control to create shorter delays, and adding a small to medium amount of FEEDBACK, the Analog Replicator generates an analog reverb effect. Add modulation using the TIME CV IN to take advantage of a range of chrous like effects. 


  • Stages switch can toggle between 4,096 and 8,192 stages, giving the option between shorter and longer delay times. 
  • Short/Long switch drastically adjusts the delay range within their given stage.
  • Longest delay length of 2.6 seconds. 
  • Feedback and Mix controls available to dial in the perfect delay tone.

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  • Size: 16hp
  • Module depth: 35mm
  • Power Usage: 45mA

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