CubuSynth - VCLFO (DIY)

DIY version of the CubuSynth VCLFO module

The VCLFO chip is out of stock, so you need to have the VCLFO10 already!

Difficulty Level: 4/10
Build Time: 1~2 hours
Low component count, quite easy build
Component count: 83

- size: 10hp

- single Thru-Hole PCB design

- 16 pin power (uses 5V Rail / no onboard regulator)

12 mA +12V
12 mA -12V
8 mA 5V

The CubuSynth VCLFO Module is a Voltage coltrolled Low frequency oscillator based on the Electric Druid VCLFO10 chip, with controls for frequency, selection of the waveforms, frequency multiplication.

The VCLFO chip was written/designed by Tom Wiltshire aka "Electric Druid". For more information visit:
https://electricdruid.net/product/vclfo-10/

1 FREQUENCY (0.05Hz – 12.8Hz)
Sets the time, the Envelope takes to reach full level from the moment a gate is detected (Key is pressed)

2 MULTIPLICATION (x1 / x8)
Sets the multiplication of the frequency by 1 or 8

3 SAMPLE & HOLD RATE (Off – 100%)
Sets the Rate of the Sample&Hold function. All the way Counter Clockwise will deactivate S&H.
The frequency of the Sample & Hold ranges from 0.2Hz to 51.2Hz

4 SYNC MODE (LFO / S&H)
Resets the LFO back to phase zero or syncs the S&H

5 FREQ CV Attenuator
Set the amount of the incoming signal on the Frequency CV input

6 WAVE SET
Select between the 2 banks of 8 waveforms. More info on Page 3.

7 WAVEFORM
Select the 8 different waveforms of the selected Wave Set

8 WAVE DIST
Shift the 180° phase towards left or right of the waveform. See Page 3.

9 SMOOTH
Set to "1", it will smooth out the waveform of the LFO

10 LEVEL CV Attenuator
Attenuates incoming CV for the output level of the LFO. If nothing is
plugged into the CV input, it will act as a Level Knob.

11 SYNC Input
Resets the LFO to phase 0° or triggers the S&H, depending on the setting
of the Sync mode switch.

12 FREQUENCY CV Input
Control the frequency of the LFO with a CV input.

13 MULTIPLICATION CV Input
control the multiplication of the LFO frequency. 0v=x1,

14 LEVEL CV Input
Control the overall Volume of the envelope. Can be used for velocity
control. If nothing is plugged in, the Volume stays on max.

15 OUT
CV-output of the LFO (-5V to +5V)

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