Rubicon Manual Table of Contents Table of Contents Overview Installation Before Your Start Installing Your Module Front Panel Panel Overview Pitch Controls Wave Type Switches FM Index Controls Symmetry Controls Miscellaneous Controls Pulse Width Controls WARP Controls ...
Rubicon Manual Overview Rubicon is the second generation of the classic Rubicon triangle core analog VCO, designed in collaboration with David G. Dixon. It features nine simultaneously available waveshape outputs; two sub-oscillators; three variations of a sine wave;...
Installation Intellijel Eurorack modules are designed to be used with a Eurorack-compatible case and power supply. Before Your Start Before installing a new module in your case you must ensure your case’s power supply has sufficient available capacity to power the module: ...
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Eurorack case. Ensure the red stripe on the cable lines up with the -12V pins on the bus board. On Intellijel power supplies the pins are labelled with the words “-12V” and a thick white stripe, as shown in the the photo to the upper ...
Rubicon Manual Panel Overview Rubicon is a deep and flexible analog oscillator, with numerous controls and jacks working in tandem to alter the pitch, waveform and harmonic spectrum in many unique ways. To understand all its features and how they affect the sound, it might be easiest to divide the ...
Rubicon Manual Pitch Controls A. VCO/LFO switch - This switch changes whether the Rubicon operates as a low frequency oscillator (LFO) or as an audio oscillator (VCO). In VCO mode the oscillator runs at audio rates with frequencies between 8 Hz and 20 kHz (depending on the ...
Rubicon Manual Wave Type Switches A. SINE TYPE switch - Sets the shape of the waveform appearing at the SINE OUT jack. If set to the left, the output is a pure SINE wave. If set to the middle, the output is a SIGMOID.
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Rubicon Manual pulses are better for syncing, but center pulses are perhaps more sonically ‘pleasing.’ Ultimately, let your ears be the judge. The following illustration is indicative of how the PULSE TYPE switch affects a narrow TRI STATE PULSE. ...
Rubicon Manual FM Index Controls A. INDEX knob - Sets the base FM INDEX level, which is the amount that a signal patched into the TZFM input will modulate the VCO frequency. At the clockwise position, frequency modulation is at its maximum.
Rubicon Manual Symmetry Controls A. SYMMETRY knob Symmetry sets the bias of the oscillator — the center point around which a signal patched into the TZFM input varies the output pitch of the oscillator. Basically, when SYMMETRY is set to either extreme (fully clockwise or fully counterclockwise), ...
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Rubicon Manual B. SYM attenuator - You can modulate the SYMMETRY value with a control signal patched into the Rubicon SYM input. The SYM attenuator adjusts the extent to which that control signal is added to the value set with the SYMMETRY knob. NOTE: External CV control of SYMMETRY is possible even with the LOCK switch ...
Rubicon Manual Miscellaneous Controls 1. EXP FM attenuverter - Sets the attenuation and polarity of the modulator signal patched into the FM EXP input. With the knob at noon, no exponential FM occurs. When set clockwise from the noon position, Rubicon ’s oscillator increases in pitch when it receives positive voltages at the ...
Rubicon Manual Pulse Width Controls A. PW knob - Sets the width of the PULSE, TRI STATE PULSE and, by consequence, the WARP waveforms. At the noon position, both the PULSE and TRI STATE PULSE waveforms are square. ...
Rubicon Manual WARP Controls A. WARP knob - Controls the amount and direction by which a signal plugged into the X IN jack is warped by the Tri State Pulse. If no signal is plugged into the X IN jack, then the Sub Oscillator feeds into the Warp circuit by default.
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Rubicon Manual sonic characteristic of the Squish circuit is variable from “smooth” to “aggressive,” and can be adjusted to your own personal taste using a trimpot on the back of the Rubicon. Because the Warp circuit works by summing two different waveforms together, it’s very likely that an unsquished WARP output will be “hotter”...
Rubicon Manual little sonic change between a squished and an unsquished waveform (other than output level). Should you find the Squish circuit too tame, turn the trimpot a bit further clockwise. The more you turn it, the more wavefolding you introduce into the output signal. It’s up to you how you want SQUISH to sound.
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Rubicon Manual D. SYM IN - CV input to modulate the SYMMETRY setting for Thru-Zero FM. The extent to which this input modulates the SYMMETRY amount is governed by the associated mini SYM attenuator. E.
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Rubicon Manual B. TRIANGLE OUT - Outputs a Triangle wave. C. SAWTOOTH OUT - Outputs a Sawtooth wave. D. DOUBLE SAWTOOTH OUT - Outputs a Double Sawtooth wave, which is double the frequency of a standard sawtooth. E.
Rubicon Manual Rubicon School Rubicon is a fully featured and advanced analog oscillator. As such, it might employ concepts or features with which you’re not overly familiar. Although this section of the manual isn’t designed to supplant a proper university, technical bookstore or Google search, it might help ...
Rubicon Manual Exponential vs. Linear FM In general, there are two distinct types of FM, both of which are supported by the Rubicon : ● EXPONENTIAL FM is the type found in many vintage analog mono synths of the 1970’s. When you change the frequency of the modulator, you change the perceived ...
Rubicon Manual symmetry results in an output with the same pitch and sonic characteristics as a fully positive symmetry — the only difference is that the oscillator runs ‘backward,’ meaning its phase is reversed.
Rubicon Manual If the Rubicon PULSE TYPE switch is set to the left (center triggered) position, then the Tri State Pulse results from a comparison of the PULSE and TRI waves. If the Rubicon PULSE TYPE switch is set to either the middle or right (edge triggered), then the ...
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Rubicon Manual Sub Oscillator feeds into the Warp circuit by default. The output of the warped signal appears at the WARP OUT jack. Because the Warp circuit adds a Tri State Pulse to the X waveform (if the Warp knob is turned clockwise), or subtracts a Tri State Pulse from the X waveform (if the Warp knob is turned ...
Rubicon Manual When the Rubicon SQUISH switch is in the up position, the Squish circuit is engaged, and the WARP circuit’s peak-to-peak output voltage is wavefolded and reduced to typical 10V p-p levels. You can alter the sonic characteristic of the Squish circuit by using the trimpot on the back of the ...
Rubicon Manual The following illustration shows an example of how the two types of sync can affect the output waveform: Technical Specifications Width 20 hp Maximum Depth 38 mm Current Draw 142 mA @ +12V ...