Quick Start Guide |
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921 VOLTAGE |
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(6) |
CNTRL IN – These summed jacks allow control voltage and |
CONTROLLED OSCILLATOR |
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modulation signals for the rectangular waveform to be |
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routed in via cables with 3.5 mm TS connectors. |
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Legendary Analog VCO Module |
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(7) |
CLAMPING POINT – Use this knob to set the point at which |
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the oscillator waveform resets. |
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for Eurorack |
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(8) |
TRIG (V/S) – These jacks allow control signals for the |
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clamping point to be routed in via cables with |
Controls |
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3.5 mm TS connectors. The clamping point can be triggered |
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with a V-Trig (voltage trigger) signal via the |
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V jack, or a S-Trig (switch trigger) signal via the S jack. |
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(1) |
(9) |
AUX OUT WAVEFORM – Use this knob to select a waveform |
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for the auxiliary output signal, including sine, triangular, |
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(3) |
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sawtooth, inverted sawtooth, square and inverted |
(2) |
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square waveforms. |
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(4) |
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(10) |
AUX OUT LEVEL – Use this knob to adjust the output level |
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for the AUXILIARY OUTPUT jacks. |
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(5) |
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(11) |
AUXILIARY OUTPUTS – Use these jacks to route an auxiliary |
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(9) |
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waveform signal out of the module via cables with 3.5 mm |
(6) |
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TS connectors. |
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(12) |
FREQUENCY CONTROL INPUTS – Use these summed jacks |
(7) |
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to route control voltage and modulation signals into the |
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oscillator via cables with 3.5 mm connectors. |
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(8) |
(10) |
(13) |
WAVEFORM OUTPUTS – Use these jacks to route oscillator |
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signals out of the module via cables with |
(12) |
(11) |
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3.5 mm jacks. Four waveforms are available: sine, triangular, |
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sawtooth and rectangular. |
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(13) |
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Power Connection |
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(1)FREQUENCY – Use this knob to set the oscillator frequency. The frequency settings for this knob are controlled by the COARSE RNG and SCALE toggle switches, as well as the RANGE rotary switch.
(2)RANGE – This knob sets the general frequency range of the oscillator in one-octave steps, which can then be adjusted up or down with the FREQUENCY knob.
(3)SCALE – This switch controls whether the frequency knob scale is ±6 octaves or ±12 semitones, which gives finer frequency control.
(4)COARSE RNG – This switch controls whether the oscillator frequency functions in the audio range or in a lower frequency range that extends below the audio threshold.
(5)RECTANGULAR WIDTH – Use this knob to set a default width for the rectangular waveform. The width can then be further controlled and varied by control voltages routed in via the CNTRL IN jacks.
The 921 VOLTAGE CONTROLLED OSCILLATOR module comes with the required power cable for connecting to a standard Eurorack power supply system. Follow these steps to connect power to the module. It is easier to make these connections before the module has been mounted into a rack case.
1.Turn the power supply or rack case power off and disconnect the power cable.
2.Insert the 16-pin connector on the power cable into the socket on the power supply or rack case. The connector has a tab that will align with the gap in the socket, so it cannot be inserted incorrectly. If the power supply does not have a keyed socket, be sure to orient pin 1 (-12 V) with the
red stripe on the cable.
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