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North Coast's complex VCO is comfortable on a journey to the East or the West, while providing a stable foundation at home in any Eurorack. The module contains two triangle-core VCOs, each with four waveforms and standard V/octave control.
As basic VCOs running independently these can be the heart of a traditional subtractive East Coast synthesizer. But the Middle Path's oscillators can also be used together, with or without sync, to drive its unique multi-output Gilbert-style sine shaper. The shaper, which can also take external input, offers wave shaping, distortion, folding, phase modulation including through-zero, and imitation stereo. These effects take the sound into West Coast territory.
The design emphasis is on harmonious combination of simple principles. The exponential converter uses premium analog multipliers and a transistor array to ensure temperature stability without fiddly adjustments or hard-to-control "tempco" resistors; it should provide consistent tracking, and especially between the two oscillators, without needing to warm up. The triangle cores are intrinsically frequency-accurate without needing extra circuitry to compensate for reset time. The sine shaper includes our own novel quadrature modification which can be used to generate a stereo signal or in combination with other modules to create frequency shift effects. The sync circuit joins the oscillator cores in another way with a selection of soft and firm modes.
High-quality potentiometers with bushings fastened to the panel for wobble-free operation; conductive plastic for smooth feel Normalization to the Eurorack bus allowing it to receive pitch control without needing an input patch All-new design, not a clone or imitation of anything else. Innovative quadrature sine shaper offering through-zero phase modulation with a range of up to 1080° Genuine AD633 and THAT320 chips in the exponential converter; sockets on all DIP ICs Through-hole for easy hand construction and maintenance Connectors between boards, and panel controls mounted on a board - no flying wires No compromises on build quality: real aluminum panel, not PCB material, with colour printing; panel screwed solidly to both the PCBs and the pots and jacks, for maximum ruggedness; nickel and gold plating on the circuit boards; close-tolerance metal film fixed resistors. Fully open design - no lock-in
External videos:
HE:
3
TE:
24
Depth:
36
Power consumption +12V:
75
Power consumption -12V:
105
Related links to "North Coast Synthesis - MSK 013 Middle Path VCO"
Behind North Coast Synthesis Ltd. is Matthew Skala, who got into hobby electronics as early as the 1980s. Matthew studied later computer science, earning a PhD at University of Waterloo and spent about 15 years in academic research and teaching at universities in Canada and Denmark. In 2017, he abandoned academia and established North Coast Synthesis in Toronto. His Leap Frog VCF provides the steepest filter slope possible: 61 dB/octave!
