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The Trepanator is a 14hp analog “Bent by Design” experimental instrument featuring a Dual VCO, Difference Rectifier, 3-band EQ, Sample/Track and Hold, and SVF(state variable filter) all built into one nonlinear module. Its origins trace back to a love for Rob Hordijk’s Benjolin and patching a similar pseudo chaotic feedback-based instrument from scratch.
Though not based on Hordijk’s circuit or signal flow, it does use a similar architecture of dual voltage controlled oscillators, an “interference pattern generator,” a state variable filter, and internalised cross-patched feedback.
Instead of a Rungler and comparator the Trepanator uses a sample/track and hold with slew, a difference/rectifier circuit(based on NLC), and a self-oscillating 3-band EQ. Utilising this excessive feedback between the VCO’s, EQ, S/H, and SVF, creates a completely new instrument for discovering abstract electronic sounds. The Trepanator is very interactive, unpredictable, and an immediate instrument capable of a huge range of organic and sounds from: snarling, plucking, bubbling, screaming, gurgling, hissing, grunting, pinging, and quacking, to machine like rhythmic loops, circuit bent broken modem sounds, no-input mixer screeching, intermittent short wave radio fizzling, and full on Harsh Noise Wall all within the touch of a fader or a small knob turn without any external audio or any control voltage in.
Specifications
- Width: 14hp
- Panel Material: Double Sided PCB panel with Classic and Soulless
- Reverse Power Protected
- Current Consumption: +12v: 60mA, -12v: 60mA
- Depth: 1.5″ or 38mm
- All through-hole build
- Ships with M3 black nylon screws
Video: https://youtu.be/x4XbCz934YE
Product Specs
- Item Number: 36044
- Make: Żłob Modular
- Model: Trepanator
- Condition: Brand New
- Finish: Black
- Categories: keyboards-and-synths ⇒ eurorack
- Function: Filter LFO Noise Oscillator Random Sample and Hold Synth Voice
- Made In: United States
- MPN: ZLOB18
- Modular Grid: Eurorack ⓘ ＋
- Dimensions*: 14 HP 38 mm deep
- Power*: 60 mA +12V 60 mA -12V ? mA 5V
* User contributed details