Hey everyone! How are you? My guess is that you need MORE VCAs!
MORE VCAs is a compact 4HP width dual VCA module based upon similar circuits found in vintage ARP synthesisers. Use it where rack space is at a premium, and when you need that warm analogue goodness. Each channel features an audio input and output, together with a CV input. An Initial Gain knob is also provided for fine adjustment,This can be used like a Hold switch, if you want to create a drone sound. The audio inputs can be pushed hard to create a thick and natural overdrive. This can be used for a wide range of sound design possibilities.
I’ve engineered out the rare parts and the need for matched transistors for the CV input section by using a Roland style circuit there instead, no change to the vibe though! The audio path remains pure ARP, with one exception. Built stock from the schematic, the resonance would clip like a motherfucker above 3 o’clock, in a way which is neither musical or desirable. I’ve come across a couple of other versions which have this ‘don’t turn it up past 8’ trait. I’ve engineered that out – a single resistor values change. Now resonance is usable and musical over the entire range. As we’re bringing part of a hardwired synth to modular, it’s also necessary to buffer the output. I’ve used an inverting buffer, which also adds a bit of gain to bring it up to modular levels. A nice side effect of the inverting buffer is that if you mix the input signal with the filter output, and find the sweet spot, you can do highpass filtering too!
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Product is a full featured modular synthesiser which you can use without patching. Or you can use it as the heart of your modular system. Each component part is fully modular, but also features pre-patched normalised signal paths for fast set up of new and exciting sounds.
Product is available both fully assembled and as a PCB/panel set.
Aw, little baby! Hi there Process 26! Looks like you’re an ARP 2600 inspired voltage processor.
The upper voltage processor features four inputs which are mixed and inverted at the output. Inputs 2 and 4 have their own attenuator. Input 2 is normalised to a positive fixed voltage source, which may be attenuated, and appears inverted at the output, useful for applying negative offsets.
The lower voltage processor features two inputs which are mixed and inverted at the output. Input 2 has it’s own attenuator. Input 2 is normalised to a negative fixed voltage, which may be attenuated, and appears inverted at the output, useful for applying positive offsets.
Deep Thought is a Boolean logic module with two distinct sections. The upper section features addressable Boolean logic, with any one of NOT A, NOT B, AND, NAND, OR, NOR, XOR and XNOR being chosen either via knob or via CV input. The lower section features simultaneous outputs of NOT A, NOT B, AND, NAND, OR, NOR, XOR and XNOR.
CEMvelope is based on the legendary ADSR section of the Sequential Circuits Pro-One monosynth, with minor adaptations to integrate it into Euro format. Smooth and snappy! It has a gate input as well as a trigger input, the trigger input works in conjunction with the gate input for multiple triggering from a suitable controller device. CEMvelope has at it’s heart a CEM3310 or AS3310. You can source your own chip, of buy direct from me when you order your PCB set and panel.