Everyone needs MORE VCAs!

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.

MORE VCAs assembled module: £100 GBP

…or…

MORE VCAs PCB set: £12 GBP

MORE VCAs panel (4HP): £12 GBP

MORE VCAs build doc: MORE VCAs Build doc

For orders and queries please contact me at:

[email protected]

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Whiteface! ARP 4023 VCF clone!

Whiteface is based on the legendary ARP4023 VCF module often found in the “whiteface” ARP Odyssey Mk1.

Whiteface PCB set and panel £30 GBP

Whiteface assembled module: £140 GBP

Build doc for DIYers: Whiteface Build Document

For orders and queries please contact me at:

[email protected]

 
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 Modular Synth is ready for you now…

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.

Product PCB set, and panel: £75 GBP

Build doc for DIYers: Product Build Doc

Product assembled module: £295 GBP

For orders and queries please contact me at:

[email protected]

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What a cutie xxxxx

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.

Process 26 PCB/panel: £20 GBP

Build Doc here

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Merry Synthmas!

Why not celebrate with a Frequency Central Product?

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XVCO TWO build doc now up!!

XVCO TWO Build Doc

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Raging Bull 3.0 build doc now up!

Raging Bull 3.0 build doc

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Where?

Where? Daniel Miller, founder of Mute Records, uses one of these :-0

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DEEP THOUGHT boolean logic module now available

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.

DEEP THOUGHT module assembled: £125 GBP

…or DIY:

DEEP THOUGHT PCB set and PIC: £20 GBP

DEEP THOUGHT panel (4HP): £15 GBP

DEEP THOUGHT build doc

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Introducing CEMvelope…!

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.

CEMvelope module assembled: £100 GBP

…or DIY:

CEMvelope PCB set: £12 GBP

CEMvelope panel (4HP): £12 GBP

AS3310 chip: £5 GBP

CEMvelope Build Doc

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