Home · Designs · Euro Modules · DuaLFO



The DuaLFO is a dual voltage-controlled Low-Frequency Oscillator, offering two versatile slow modulation sources:

  • The main LFO provides three sine waves 120 degrees apart (0, 120, 240 degrees). Frequency range is 45Hz down to around 90 minutes per cycle (about 180 micro-Hz). CV control is normalised to the auxiliary LFO sine or the CV bus (link-selectable).
  • The auxiliary LFO is a triangle-core oscillator with a similar frequency range to the main LFO, and includes a diode sine shaper. In addition to CV control, its shape is fully adjustable from saw to ramp, and is also CV controlled. Finally, the auxiliary LFO is syncable, with push button selection of rising or falling edge sensitivity.

Both LFOs have bipolar LED indicators, especially useful at slower speeds. Knobs are high-quality spun-aluminium with knurled sides for comfortable but positive grip. All jacks are the same high-quality Cliff ones we sell. Finally, the 18HP-wide 2mm aluminium front panel is produced in MetalPhoto giving crisp graphics and a hardwearing finish.

Power consumption is typically 40mA per rail, and can run on both 12V and 15V systems. Reverse-voltage and missing-rail protection is included as standard.

The blog posting about the DuaLFO has a couple more pictures of the completed unit.

DIY Downloads:

A professionally printed and bound version of the user manual can be downloaded from Lulu.com.

PCBs and front panels can be purchased from Paul at Krisp1. Please contact him for latest pricing and availability. Also please note that Paul is unable to provide any support for this project - if you have any questions please use the Contact form.