Wavefonix 3340 Low-Frequency Oscillator Module

Wavefonix's 3340 Low-Frequency Oscillator (LFO) utilises the original CEM3340 (Rev. G) architecture, similarly to the 3340 VCO.

It is a voltage-controlled LFO featuring three simultaneous, buffered 10Vpp (i5V) waveforms including DC-coupled ramp, triangle and pulse outputs.

The pulse output has a controllable PW, along with a PWM CV input (i5V range). The PW can be varied manually between 50% and 100% duty cycle with the PW knob on the front panel. When a PWM CV source is input, the PW is normalled to 50% and the CV level is attenuated using the PW knob.

Other features include a controllable FM input that is also calibrated to 1V / octave when the FM knob is fully-clockwise. So the LFO can also be used as a limited VCO. A comparator-based reversing type sync input also allows the LFO to be synced to another LFO or VCO etc.

The overall frequency range of the LFO is approximately 0.03Hz to 4.5kHz. Coarse and fine frequency knobs provide a maximum frequency adjustment range of approximately 0.03Hz to 1kHZ (this range is adjustable using a trimmer on the PCB).

Specifications

Format: Eurorack
Width: 10hp
Depth: approx. 40mm
Power consumption:
+12V: 60mA
-12V: 40mA
+5V: 0mA

• Original CEM3340 (Rev. G)-based LFO with a range of modulation options including PWM and an FM input calibrated to 1V/octave when FM knob is fully clockwise.
• Can be used as a limited VCO.
• Three simultaneous, buffered 10Vpp (±5V) waveforms including DC-coupled ramp, triangle and pulse outputs, with a controllable PW and PWM CV input (±5V).
• Overall frequency range of 0.03Hz to 4.5kHZ. Coarse and fine frequency control knobs provide a maximum frequency range of approximately 0.03Hz to 1KHz (adjustable using trimmer on PCB).
• Comparator-based reversing sync input allowing the LFO to be synced to many different types of sources, such as other LFOs, envelopes, gate signals and so on.
• Ergonomic design.
• Hand-built and tested in the UK.

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