Complex Dual Oscillator with modulation bus & waveshaping, a modern Buchla 259 oscillator.
The DPO is a voltage controlled oscillator designed for generating complex waveforms and implementing FM synthesis within the analog domain. Expanding on the classic arrangement of Primary and Modulator Oscillators, the DPO has both of the VCOs operable as complex signal sources. It is in essence a Dual Primary Oscillator.
The DPO is also designed for fast live sound creation. The module groups functionality intuitively to make complex patching move more quickly, while still interacting in an exciting way with all other modules. Dynamic FM, Circular FM, Hard Sync and Additive Harmonic synthesis processes are all achieved with internal routing on the DPO. The idea being that the artist will utilize patch cables to expand upon these standard concepts or interrupt them completely by simply patching into the associated modulation destinations.
Features
* Vintage voiced, all analog
* Triangle Core with Sine, Saw, Spike & Square wave shapes
* Dedicated FM and Mod buses
* Modulation source signals are internally routed with associated destination CV attenuators setting final depths
* Mod Bus has added capability of using external source (patched at EXT. SouRCe input) in place of VCO 1 Sine
* Bi-Directional Dynamic FM Bus allows for circular FM
* VCO A features Hard Sync circuit which combined Dynamic FM yields complex sounds
* VCO A operates as LFO, perfect for slow morphing of VCO B timbres
* VCO B features complex timbral control through the use of a 3 parameter waveform shaping and Dynamic FM
* Utilizes SIX Vactrols
* Pairs well with the Echophon
Controls
* Triangle Waveform OUT
* Sawtooth Waveform OUT
* 2 Sine Waveforms OUT
* Square Waveform OUT
* FINAL Waveform: max 10Vpp Waveform as processed by Shape, Angle & Fold circuits
* Coarse Tune panel control: 9.5 octave range 12hz6khz
* 1V/ Octave Scale Trimmer (see calibrtation procedure)
* Fine Tune panel control: 1.75 octave range
* Expo Attenuator: unipolar attenuator for Exponential frequency control input
* Linear FM Attenuator: unipolar attenuator for Linear FM input
* Expo INput: Exponential frequency control input. normalled to FM Bus. bipolar, 10V
* range
* 1V/ Octave control INput: bipolar pitch control, optimal range +/5V
* Linear FM INput: AC coupled, normalled to FM Bus, 10V range
* VCO core behavior (Indicated by LED): No LED Standard, BLUE
Specifications
* Format : Eurorack
* Width : 28Hp
* Depth : 30mm
* Power : 70mA@ +12V / 70mA@ -12V
Varukorg