Doepfer A-147-4

Description

Module A-147-4 is a versatile Dual Voltage Controlled LFO (Low Frequency Oscillator) perfect for dynamic sound modulation. Each LFO offers five distinct waveforms: triangle, sine, rising and falling sawtooth, and rectangle. The rectangle output includes manually adjustable pulsewidth and pulsewidth modulation via external control voltage.

Key Features:
– Core Waveform: Triangle, with other waveforms derived through converters.
– Frequency Control: Adjustable manually or modulated by an external voltage. Select frequency ranges via jumper: 0.02 Hz to 2.5kHz or 0.0017 Hz to 220Hz.
– Reset Function: Each LFO has a reset input for the triangle signal.
– Customizable Controls:
– Control F: Manual frequency adjustment. Frequency range can be selected by jumper.
– Control CV: Attenuator for CV input, fine-tune frequency without patch cable.
– Control PW/PM: Manual and CV control for rectangle pulsewidth.
– Output Voltage Range: -5V to +5V (10Vpp), with adjustable rectangle output range.
– Visual Indicator: LED for LFO (triangle) status.

Technical Notes:
– Jumper settings allow for frequency range customization: 1:11 ratio for VCO circuit.
– Edge-triggered or level-controlled reset options available.
– Power Consumption: 80mA at +12 V, 70mA at -12 V.
– Dimensions: Depth: 45mm, HP: 8.

Enhance your modular setup with the A-147-4 for unparalleled sound shaping capabilities.