204D is an analogue voltage controlled low-pass filter, which filters out the higher parts of the sound spectrum, and lets lower frequencies pass through. Based on “transistor ladder” design of vintage Minimoog 204D, with a cut-off slope of -24 dB/octave as in various Moog synthesizers.
Resonance (or Emphasis) is adjustable all the way up to self-oscillation – in this case the filter behaves like a sine wave oscillator with V/Oct tracking up to 4 octaves.
Works as passive 2-channel mixer as well.
3cv inputs allows complex cut off modulation.
Handmade with thru-hole components only.
Limited edition, 40 items were made
- 120 mA +12V
- 15 mA -12V
- 0 mA 5V
- 30 mm deep
Hand-built in Kyiv, UA