Now available, a great module, the "Dual Parallel VCO" module from Circuit Slices, LLC. This space-saving module packs a punch with quality features and produces some really fat sounds.  For less then the cost of one VCO, get two in one narrow module.  A quality all-analog, triangle-core design allows the two oscillators to track over 9 octaves. 

Used in the standard parallel configuration, you can tune an interval or tune to the same pitch for interesting flanging sounds.  But that is just the start -- here are some ideas: Use one VCO to frequency modulate the other.  Set VCO 2 to the low range to act as an LFO for VCO1.  Hard sync one VCO to the other. Control one VCO form a keyboard and the other from a step sequencer.  The user manual includes more patch ideas.

• Eurorack format
• 12HP (less than most single VCOs)
• Incredibly fat sounds for only one small module
• Modern SMT design for small footprint and reduced cost
• Standard one-volt-per-octave control
• Over 10V control range
• VCO1 and VCO2 frequency range: ~1Hz to over 15KHz

High quality VCOs
• Matched-transistor pair oscillator, Triangle-core design
• VCO cores use high-performance (low noise, zero drift) op-amps
• Each VCO is temperature-compensated (TEMPCO) for improved frequency stability
• Oscillators track over 9 octaves

Six inputs
• 1V-oct 1 and 1V-oct 2, FM, PWM, Sync1 and Sync 2
“Normalled”  with 1V/ oct 2 routed to both VCOs
• CV patched into “1V-oct 2” controls both VCOs
• CV patched into “1V oct 1” separates the two VCOs in to independently-controllable oscillators

Six outputs
• 2 Triangle, 2 Sawtooth, 2 Pulse: 10Vp-p (+/-5V)
• Outputs can be passively summed using “stackable” cables or a passive “multiple”

Front Panel Controls
• Single FREQ knob controls both VCOs
• Two independent FINE tune controls can adjust VCO pitch separation over two octaves
• Adjust the VCOs for a given interval and they track as FREQ control is adjusted
• FM and PWM inputs control both VCOs
• Initial Pulse Width control
• PWM amount control
• FM amount control (switch between Linear and Exponential)
• Switch to lower the range of VCO 2 for greater separation between oscillators
• VCO 2 can be adjusted to act as a VC-LFO

Power
12V @ 52mA
-12V @ 52mA
• Reverse-power protected
• Keyed power connector

Size
12HP
Depth from front panel: 1.55”

Includes power cable and mounting screws

One year warrantee, with parts, from Circuit Slices, LLC

User Manual is available as a downloadable PDF near the bottom of the Circuit Slices home page.