Covid-19 - Please favor the email over the phone when contacting us: MTL: TOR: WEB:
Please note that due to our reduced staff and our busy carriers, delivery times may take longer than usual. You can always use our Facebook page as well to contact us.

Regular Price: $206


This product is currently discontinued.

Availability Special Order

Hungry Robot VCO Analog Oscillator
Express Checkout


The Hungry Robot VCO is an all-analog, low cost, workhorse of a VCO. 

It can output triangle, sawtooth, and square waveforms simultaneously with tremendous bass response. 

The VCO has exceptional 1V/OCT tracking with FM modulation. 

The FM modulation input has a built-in CV attenuator as well as an inversion switch. 

The square wave has PWM with a built-in CV attenuator. 

As with all Hungry Robot "Modular Boxes" the VCO can be powered with a simple 9V DC, Negative Center power supply. 


  • COARSE:  Provides a wide sweep of output frequencies
  • FINE:  Provides a narrow sweep of output frequencies for fine tuning
  • PWM:  Attenuator for the PWM CV input.
  • FM:  Attenuator for the FM CV input


  • INVERT:  Inverts the incoming FM CV input.  Toggle to the right to invert incoming CV


  • 1V/OCT:  Input for 1V/OCT tracking
  • FM:  CV input for Frequency Modulation
  • PWM:  CV input for Pulse Width Modulation
  • TRIANGLE:  Triangle waveform output
  • SAWTOOTH:  Sawtooth waveform output
  • SQUARE:  Square waveform output

Technical Specifications

  • Dimensions: 4.7” x 2.6” x 1.5”
  • Power: 9V DC - Negative Center - 2.1mm Barrel
  • Isolated Supply Preferable

Product Tags

Use spaces to separate tags. Use single quotes (') for phrases.

Your browser is out-of-date!

Update your browser to view this website correctly. Update my browser now