A-143-9 VC Quadrature LFO
Voltage controlled quadrature LFO
Panel · 40.6 × 128.5 mm
Description
Doepfer's voltage controlled quadrature LFO: a low-distortion sine and cosine at the same time, and their inverses, four outputs 90 degrees apart.
Key features
- Four outputs: sine (0°), cosine (90°), inverted sine (180°) and inverted cosine (270°), about 5 Vpp (±2.5 V)
- Range switch: L about 0.1 to 10 Hz, M about 1 to 150 Hz, H about 30 Hz to 3.5 kHz with the Frq. control
- Two exponential CV inputs: CV1 without attenuator, CV2 with a polarizer (zero in the middle)
- Two LEDs show the positive and negative halves of the sine
- For the A-126 frequency shifters, quadrature and barber-pole effects, or as an experimental sine/cosine VCO