Welcome to the Oakley Modular page, home of Tony Allgood's Oakley Modular System since 1999. Oakley modules can be be bought either as a ready made units from our partner business Krisp1.com, or can be constructed by yourself using our high quality bare printed circuit boards. Full building instructions can be found on each of the project's own webpage.
Our full size modules are primarily designed for the 5U module system as originally defined by the Synthtech MOTM modular. As such they are fully compatible with MOTM and other MOTM compatible modules. Our newer module designs are also MU format compatible and are therefore suitable for fitting into Synthesizers.com systems. Ready made MU format modules are available from Krisp1.com. If you are building them yourself you can, with a bit of imagination, get them to work with the smaller formats too.
Our Compact 3U range is designed for Euro sized modulars and Fractional Rack systems. They are designed to work on either +/-12V or +/-15V. We are hoping to develop many more modules in this range in the next couple of years.
For technical support on all Oakley projects please refer to the knowledgeable and helpful Oakley Sound Forum which is hosted at Muffwiggler.com. Tony Allgood at Oakley Sound Systems does not provide direct e-mail support for Oakley projects, but is usually available via the forum.
Ordering details for modules or DIY PCBs and parts can be found by clicking here. Some tips on buying which modules can be found in our Which Modules page.
The Modules
Ready made modules, or DIY PCBs and other parts, are available for the following 5U and 3U projects:
Oscillators
5U VCO Superb sounding and full featured oscillator for classic analogue power
5U Slim-VCO Single width oscillator NEW
5U VC-LFO Voltage controlled audio and low frequency oscillator
5U VCO controller Master control over VCO pairs with onboard vibrato LFO
5U Little-LFO Wonderful little low frequency oscillator
Filters
5U COTA Multimode voltage controlled filter based on the classic cascaded integrator design
5U Croglin Dual filter with a very unusual topology
5U Diode Superladder Filter Discrete four stage diode ladder low pass and band pass filter
5U Journeyman Diode Ring Filter A discrete VCF full of character
5U State Variable Filter Two pole true multimode VCF
5U Transistor Superladder Filter Moog style low pass and band pass filter
Utility Modules
5U Comparator & Gate Delay Dual CV & Audio processor with gate delay feature
5U Control 1,2 & 3 Quad voltage source and reversible attenuators
5U EFG Envelope Follower, Gate Extractor and Pre-amp in one.
5U Fourmix Simple but effective four channel audio and CV mixer.
5U Little-Lag Simple 'up/down' lag generator
5U midiDAC Single channel midi to CV convertor
5U MultiMix Versatile three way mixer for DC and audio
5U Noise/Filter Analogue noise and voltage controlled filter module
5U OMS-820 Companion module to the MOTM-820 Voltage controlled lag processor
5U Sample and Hold Very useful S/H design with separate slew generator
5U Versatile Ramp Generator Variable symmetry oscillator, slew, envelope generator, trigger delay and more. NEW
Amplifiers
5U Dual and Quad VCAs A dual and quad voltage controlled amplifier module with mixing capabilities
3U 4019 VCA Classic VCA based on a classic discrete voltage controlled amplifier
Effects
5U Equinoxe Voltage controlled phaser
5U Deep Equinoxe Voltage controlled eight stage phaser
5U Discontinuity Waveshaper, wavefolder, ring modulator, wave splicer, clipper and rectifier module NEW ISSUE
3U Overdrive Make your Euro or Frac format modular scream with this overdrive and distortion unit
5U Overdrive Make your full size modular scream with this overdrive and distortion unit
5U 4014 Ring Modulator Classic ring modulator circuit with a vintage pedigree
Envelope Generators
5U ADSR/VCA A looping ADSR envelope generator and VCA in one
5U VC-ADSR Fully voltage controlled looping ADSR and VCA
5U Versatile Ramp Generator Variable symmetry oscillator, slew, envelope generator, trigger delay and more. NEW
Power Supplies
Compact Power Supply Regulated power supply and distribution board for smaller systems
Dizzy Power distribution board
Power Supply Power supply module for medium sized systems
Useful Information
Which Modules Some tips on buying which modules for your modular
Construction Guide Our handy PDF guide to building Oakley DIY projects
Parts Guide Our handy PDF guide to buying parts for Oakley DIY projects
Power Supplies Information about sourcing power supplies
Legacy Support
Legacy Support Page A growing collection of older User Guides, User Manuals and Builder's Guides
An example of a small but powerful Oakley modular system built into a 6U high 19" rack using natural finish Scheaffer panels. The system comprises of SVCO-B, VCO, VC-LFO, Multimix (x2), Transistor Superladder VCF, D-VCA, VRG and ADSR/VCA. The 19" wide module underneath the 5U high modules is a midiDAC rack.
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