Intellijel Rubicon2 Manual Download Page 27

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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
150 mA @ -12V

Page 26

Summary of Contents for Rubicon2

Page 1: ...Rubicon2 Manual Rubicon2 Thru Zero Discrete Triangle Core VCO Manual Revision 2018 05 20...

Page 2: ...Switches FM Index Controls Symmetry Controls Miscellaneous Controls Pulse Width Controls WARP Controls Inputs Outputs Rubicon2 School Understanding FM Exponential vs Linear FM Thru Zero FM TZFM TZFM S...

Page 3: ...uracy This is not a set it and forget it oscillator It s an oscillator that demands to be tweaked modulated and explored It s an oscillator that s proudly analog and eschews all shortcuts As such it s...

Page 4: ...city or upgrade your power supply You will also need to ensure you have enough free space hp as well as free power headers in your case to t the new module You can use a tool like ModularGrid to assis...

Page 5: ...her manufacturer s power supply check their documentation for instructions Once connected the cabling between a module and power supply should resemble the photo shown to the lower right Before reconn...

Page 6: ...Rubicon2 Manual Front Panel Page 5...

Page 7: ...main VCO and the PULSE TYPE switch on the right changes the trigger point and octave of both the pulse and tri state pulse waves 3 FM Index Controls This knob and its corresponding attenuator alter th...

Page 8: ...ctave C PITCH knob Allows ner frequency adjustment over a range of six semitones D PITCH OFFSET trimpot Adjusts the oscillator s base frequency which in turn de nes the actual frequency range produced...

Page 9: ...great for creating metallic sounds B PULSE TYPE switch This switch sets whether Rubicon2 pulse waves are edge triggered or center triggered Speci cally with the switch in the left position the PULSE a...

Page 10: ...judge The following illustration is indicative of how the PULSE TYPE switch affects a narrow TRI STATE PULSE C SUB TYPE Selects the frequency of the Rubicon2 SUB Oscillator SUB 1 produces a square wa...

Page 11: ...ncy At the clockwise position frequency modulation is at its maximum At the counterclockwise position no frequency modulation occurs B INDEX attenuator You can modulate the INDEX value with a control...

Page 12: ...LE WAVE output The sound you hear is Linear FM Turn on the LOCK switch which sets Rubicon2 to a perfectly symmetrical and pitch corrected state and listen to the same Triangle Wave output the sound yo...

Page 13: ...ch on LOCK up position the Rubicon2 ignores the position of the SYMMETRY knob internally setting it to a balanced position while simultaneously adding compensation voltage to bring the oscillator back...

Page 14: ...difference will be evident if you re feeding the FX EXP input with either a slow LFO or a unipolar signal like an envelope 2 HARD FLIP Sync Mode Switch The setting of this switch determines how the Ru...

Page 15: ...extremes the wave is essentially a DC source meaning you will no longer hear it Some oscillators limit these extremes to prevent the pulse wave from ever going silent but Rubicon2 was created for sou...

Page 16: ...he Tri State Pulse and appears unaffected at the WARP OUT jack TIP Since the WARP circuit uses the Tri State Pulse be sure to experiment with different PULSE TYPE settings and de nitely tweak and or m...

Page 17: ...UISH switch is in the up position the Squish circuit is engaged and the WARP circuit s peak to peak output voltage is reduced to typical 10V p p levels You can alter the sonic characteristic of the Sq...

Page 18: ...you might prefer to rotate the Trim pot clockwise to introduce some wavefolding characteristics into the Rubicon2 s squished WARP OUT signal Inputs A 1V OCT IN Controls the frequency of the VCO Every...

Page 19: ...o which this input modulates the pulse width is governed by the associated PW attenuator mini knob Note that PWM also affects the width of the Tri State Pulse and the WARP waveforms H X IN Waveform in...

Page 20: ...So if you ever patch a cable into the PULSE OUT jack and wonder why you don t hear anything check to make sure the PW knob isn t set to either extreme G TRI STATE PULSE OUT Outputs a Tri State Pulse o...

Page 21: ...f you speed up the modulating waveform to audio rates The pitch rises and falls so quickly that the ear no longer perceives the modulation as vibrato Instead it hears new frequencies called sidebands...

Page 22: ...ou frequency modulate an oscillator you cause its pitch to go up and down In a typical non TZFM linear FM circuit the oscillator is biased such that no matter how great the modulation the output pitch...

Page 23: ...hange results in a 1 octave exponential change in pitch So a 3x change in voltage would result in an 8x change in frequency ex If you play an A at 220Hz the A three octaves higher would be 1760Hz an 8...

Page 24: ...If the Rubicon2 PULSE TYPE switch is set to either the middle or right edge triggered then the Tri State Pulse results from a comparison of a PULSE wave and a SAW wave Understanding Warp The WARP circ...

Page 25: ...endous sonic variation is possible by varying numerous parameters that directly affect the Warp output such as the PULSE TYPE switch the PULSE WIDTH and the WARP value Modulating both the WARP and PUL...

Page 26: ...auses abrupt changes to the slave oscillator s waveform which results in a harmonically rich sound Further harmonic complexity is achieved by modulating the pitch of the slave oscillator which causes...

Page 27: ...Manual The following illustration shows an example of how the two types of sync can affect the output waveform Technical Speci cations Width 20 hp Maximum Depth 38 mm Current Draw 142 mA 12V 150 mA 12...

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