SID GUTS

SID chip voice

ALM Busy Circuits · 12 HP · 3U

Panel · 61 × 128.5 mm

Description

ALM's 12 HP SID voice, now discontinued: a real MOS 6581 or 8580 SID chip (or a SwinSID) from the Commodore 64, a wavetable oscillator through the chip's analog multimode filter, with a second oscillator for sync or ring modulation, under modular control.

Key features

  • 1 V/oct oscillator (0 to 5 V), pulse, saw, triangle or noise, by button or CV
  • Pulse width: PWM and its CV with attenuator
  • 12 dB/oct filter, low, band, high pass or notch: Filter cutoff and its CV with attenuator, Res
  • Modulation oscillator, 1 V/oct: none, sync or ring, by button or CV
  • External audio input through the filter
  • The SID chip not included, its noise kept

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