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DIY MFOS VCF State Variable KB

We always recommend visiting the MFOS website before building where the latest 'offical' information and news can be found. Here on the Soundtronics website, you will find selected information from the MFOS site plus additional information and resources to aid the building and maintaining of your MFOS synth. This is not going to happen over-night but during the course of 2014, it will start to take shape as we document our experiences in the construction of these modules. We would also like to include any experiences, hints and tips from customers as well so feel free to contact us or simply post a comment using the form at the foot of this page.

Introduction to the MFOS VCF State Variable

Voltage Controlled Filters can subtract or add harmonics from the original signal and dynamically change the harmonic content as they are swept by external control voltages or track the keyboard voltage used to control your oscillators.  This filter includes simultaneous high-pass, low-pass and band pass outputs, voltage controllable cut off frequency and resonance (or Q) giving your imagination even more variables to play with as you experiment with sounds. Additionally it provides inputs for a three-signal mixer.

Features

  • State Variable VCF 12dB/Octave With VC Resonance
  • Simultaneous High-Pass, Low-Pass and Band Pass Filter outputs.
  • Log Response to Control Voltage (1V/Oct Tunable)
  • Sine Wave Oscillator at full resonance
  • Power Supply Range +/-9V up to +/-15V
  • Voltage Controlled Resonance (Linear control)

Documentation & Downloads

Under Construction