Jolin Lab ASHIKO see-saw VCA

ASHIKO is a quad stereo VCA designed to create multi-directional sounds starting with mono sources



why:

• To instantly create a stereo image with a mono source and a single CV input.

• To CV switch a sequence and send it alternatively to two different oscillators.

• To direct the movements in a quadrophonic system.

• To control up to 4 sources with independent CVs and send them to 8 different outputs.



with:

• LFOs – perfect as CV inputs.

• Oscillators – to enhance them in the stereo field.

• Delays – instant ping-pong effect.

• Samples – manipulate their presence in the mix with addition modulations.



how:

Plug an input into “I” and a LFO in “V”. Connect the two outputs “O” into a mixer / output module.



The switch at the bottom is used to set the mono – stereo mode of the VCA. The other toggle is to select between a hard and a soft pan curve. Visual feedback of which of the two output is currently open is given with two blue LEDs.



“It’s called see-saw VCA because when an output is linearly opening the other one is alternately closing following the behaviour of the CV source. Different kind of controls – pulses, envelopes, complex waves will make the VCA react in a distinctive way.”



With stereo mode active – bottom toggle switch on - connect a triangle wave from an LFO in the V input. Rise the frequency of the LFO to speed up the opening-closing action of the VCAs, resulting in a faster stereo and phasing effect. Make this panning harder or softer with the other toggle switch.

Experiment with all kind of input waves to get unique results.



features:

• 4 Stereo full range VCAs.

• Transistors based CV inputs designed to give the best results with LFOs.

• Individual toggle switches to activate mono or stereo mode.

• Selectable hard/soft switching curve.

• Input and CV are normalled and they flow top to bottom when no jack is inserted.

• Works with audio and CV sources.

• “Whatever” power connector a.k.a. don’t mind the polarity.



specs

• current draw ⇒ +12V 85ma, -12V 70ma

• dimensions

⇒ width 6HP, depth 25mm