Oakley, MOTM and Blacet Modular Synthesiser

Title link takes you to shots pulled from this auction. Details saved below.



"Custom built “one off” large format Modular Synthesiser in Mint condition and perfect working order. It has been custom built from the very best of Oakley Sound, MOTM, Blacet, Encore and Tellun System modules, with custom engraved stunning looking electric blue front panels and a solid American Oak case. It has been designed and built to the highest standards, and has two separate power supplies, a Power One 1.7Amp PSU for analog modules and a Power One 800ma PSU for the “dirtier” digital modules. This arrangement keeps the soundpath noise free.

I built this modular without regard to cost and for my own personal use, it has a wide variety of filters so that as well as making all of the usual (and unusual J )modular sounds, it will also mimic a lot of old school Analog synths – the Oakley VCO’s are based on the Minimoog core, so in conjunction with the Oakley Superladder moog filter you can get perfect Minimoog and Moog Modular sounds, or use the MOTM 440 for Pro 5 sounds, the MOTM420 for Korg MS20 sounds, The MOTM410 for Korg PS3200 sounds, the MOTM480 for Yamaha CS80, the MOTM485 for Yamaha GX1 etc. BUT it also includes 2 Blacet Miniwaves with optional PPG wavetable ROMS, so wire in a couple of the Miniwaves and use them with the MOTM440 filter and you have instant PPG Waveterm 2.3 sounds!

But there is more, it also includes some very rare modules including the Oakley Octal Resonator (Only 20 ever built!), the very highly regarded ENCORE thru zero Bode style frequency shifter and the extremely wacky Neural Agoniser, which uses two huge (and very expensive) Accutronics spring line reverb tanks to make sounds you have never heard before! The Blacet MiniWaves both have the Hylander Rom expansion boards, so each MiniWave has TEN selectable Roms instead of one or two, and there are 256 waves and 256 banks in each rom - that is a LOT of waveforms. One of the ROMs even allows the MiniWaves to act as a fully featured Quantizers!.

Here is a list of all modules:

TOP ROW
OAKLEY MidiDac Midi to CV Convertor
1 of Custom Built Noise source - produces White Noise, Pink Noise and two of three oscillator 808 type “Chime” Noise sources – great for bell tones
2 of OAKLEY VCO Modded with Switchable Octaves and Fine tune (like minimoog)
1 of Oakley VCO with standard Coarse and Fine Tune controls
2 of BLACET Mini Waves – Modded with Rom expansions, each miniwave has TEN selectable roms, instead of usual 1 or 2. Includes PPG Roms and many others.
2 of Oakley ADSR / VCA’s latest issue with extra fast envelopes and status leds
1 of MOTM 440 Voltage Controlled Filter
1 of OAKLEY SuperLadder Moog filter 1P, 4P and bandpass
1 of OAKLEY Octal Resonator resonant filter bank

BOTTOM ROW
1 of OAKLEY VC-LFO
1 of OAKLEY Sample & Hold and Slew Module
1 of OAKLEY Wavefolder
1 of ENCORE Electronics Thru Zero Frequency Shifter
1 of OAKLEY Little EG – AD and AR envelope shaper
1 of OAKLEY Triple VCA
2 of OAKLEY MultiMix – With full “Stooge” mod front panels, allow addition or subtraction of voltages
1 of MOTM 485 – Yamaha GX1 LP and HP Voltage Controlled Filter
1 of MOTM 410 – Korg PS3200 style Triple Bandpass Voltage Controlled Filters
1 of OAKLEY OMS410 Expander for MOTM410, allows external use of 3 LFO’s, extra CV’s etc
1 of MOTM 420 – Korg MS20 style LP/HP/BP Voltage Controlled Filter
1 of MOTM 480 – Yamaha CS80 type LP/HP Voltage Controlled Filter
1 of TELLUN TLN-156 Neural Agoniser – With Dual Accutronics spring reverb tanks and full front panel design.

I will include a useful selection of patch cables. Also included is a huge ring binder with operation notes, building instructions, parts schedules and circuit diagrams for all of the modules. The whole system has been recently calibrated and fully tested and is 100% working. It has had very little use and should provide years of faithful service.

This is advertised elsewhere (SOS) so I reserve the right to end the auction early. This is a once in a lifetime opportunity, not just the best sounding Modular synth available but the best looking one too! You could easily pay more for a piano and that just has one sound and doesn't look as nice either :-)

For further information the links below should be useful:
Oakley homepage: http://www.oakleysound.com/projects.htm
MOTM Homepage: http://www.synthtech.com/motm.html
Blacet Homepage: http://www.blacet.com/MW.html
Expansion board for Miniwave: http://www.hylander.com/miniwave.html
Encore Electronics: http://www.encoreelectronics.com/cont_fs1.html
Tellun Corporation: http://www.tellun.com/motm/diy/tln156/TLN-156.html"

Krisp1 5U Oakley MOTM Modular Synthesizer

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

"5U Oakley/MOTM Portable System. Consists of:

1 x Oakley VCO
2 x Oakley Slim VCO B's
1 X Oakley Multimix
1 X Fritz 5Pulser
1 X Oakley Journeyman
1 X MOTM 440
1 X Oakley EFG
1 x Oakley Noise/Filter
1 X Oakley Sample and Hold
1 X Oakley VC-LFO
1 X Oakley VRG
2 X Oakley Looping ADSR/VCA's
1 X Oakley Quad VCA
1 X Custom MOTM 900 power supply panel with mulitples built by Todd Fletcher
1 X SKB Pop up mixer case
35 patch cables

All Oakley modules were built by Krisp1.

This is an extremely flexible synthesizer for such a compact system. Can have up to 4 VCO's (the VC LFO tracks 1 v/oct), up to 6 LFO's (Slim VCO's go to LFO range, VGR and Looping ADSR's can function as LFO's), 6 VCA's, and 4 filters (Noise/Filter module has independent high and low pass filters)."

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Seriously Wonderful Custom Modular

Note: Auction links are affiliate links for which the site may be compensated.

via this VEMIA auction

"This is honestly one of the most beautiful and mind-bending modulars I have ever seen or heard. Built by an ex-telecoms engineer with the highest quality control, in a wonderful solid oak cabinet, and with all the anodized blue front panels engraved in uniform style to the same high standard. Not only does it look beautiful - it also sounds amazing. It is capable of some of the scariest and weirdest sounds I have ever heard from a synthesizer. The modules are chosen brilliantly from a variety of high-quality manufacturers. This has been very little used, and at the start price is probably the best value modular we have ever had here. The module quota is like a best-of list:- Oakley MIDI-to-CV, Multi Noise Source & LFO (Designer un-known), Oakley VCO x3, Wiard / Blacet MiniWave x2, Oakley ADSR/VCA x2, MOTM-440 Discrete LPF, Oakley Superladder Filter, Oakley Octal Resonator, Oakley VC-LFO, Oakley Sample/Slew, Oakley Wavefolder, Encore Frequency Shifter, Oakley Little EG, Oakley Triple VCA, Oakley Multimix x2, MOTM 405 VCF, MOTM 410 Triple Resonant Filter, Oakley OMS-410, MOTM 420 VCF, MOTM 480 CS-mode Resonant Filter, Tellun Corporation TLM-150 Neural Agonizer (the most amazing double spring reverb with attitude). Comes with 30 mixed colour patch leads. If you only buy one modular synth ever, buy this one. Packing 20GBP to include a UK or Euro mains lead."

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Discon Sequenced 1

"2 Triangle waves from Oakley VCOs one to the main Discon input the other to the fold CV input
Modulation by Oakley ADSR/VCA, VCLFO, little LFO and MidiDAC
Sequencing by Sequntix P3 and Oakley MidiDAC
Manual tweaking by Krisp1
Main output from the Discon No Filters where used in this production"

Discon Sequenced 2

"2 Triangle waves from Oakley VCOs one to the main Discon input the other to the fold CV input
Modulation by Oakley ADSR/VCA, VCLFO, little LFO and MidiDAC
Sequencing by Sequntix P3 and Oakley MidiDAC
Manual tweaking by Krisp1
Main output from the Discon No Filters where used in this production"

Discon Sequenced 3

YouTube via krisp14u
"2 Triangle waves from Oakley VCOs one to the main Discon input the other to the fold CV input
Modulation by Oakley ADSR/VCA, VCLFO, little LFO and MidiDAC
Sequencing by Sequntix P3 and Oakley MidiDAC
Manual tweaking by Krisp1
Main output from the Discon No Filters where used in this production"

Discon fed by 2 Triangle waves

"2 Triangle waves from Oakley VCOs one to the main Discon input the other to the fold CV input
Modulation by Oakley VCLFO, little LFO and MidiDAC
Manual tweaking by Krisp1
Main output from the Discon No Filters where used in this production"

Oakley Modular Re-issues Limited PCBs

"Oakley Modular are proud to announce the re-issue of a limited number of modular synthesizer PCBs designed by Tony Allgood of Oakley Sound Systems. Short production runs of these popular boards will be offered on a first come, first served basis. Depending on the popularity of this first run of boards, further PCBs from the Oakley range may be offered."





Note it's Oakley Modular and not Oakley Sound Systems. Via Oakley Sound Systems News:
"I have formed a new partnership with two individuals to allow PCBs and hopefully ready made modules to become available again.

Oakley Modular is the newly formed company that is handling all the merchandising of the modular PCBs and parts.

This week they started shipping the first batch of re-issued boards. Depending on sales, we will then look at introducing new versions of some of the obsolete modules, and perhaps some new ones too.

The new Oakley Modular website can be found here. Please note that although the website is fully functional, we still have plenty of things to add to it. We hope to update all the User Guides and give you new pictures of the new RoHS compliant PCBs and parts.

Tony"

This one via Sjaak Thanks Sjaak!

The Ocean - True Analog Synth by R.J.Vleck 2005

Title link takes you to a post on this absolutely stunning analog synth. Sent my way via Dennis Verschoor. Make sure to click through for more shots. Thanks Dennis!



Details:
Oakley spul:
3 x VCO (Oakley Sound)
2 x ADSR/VCA (Oakley Sound)
1 x VC-LFO (Oakley Sound)
1 x Equinoxe Phaser (Oakley Sound)
1 x Super Ladder Filter (Oakley Sound)
1 x MidiDAC (Oakley Sound)

Eigen PCB's:
1 x Ring Modulator (EFM design)
1 x Power Distribution Board
1 x Dual VCA (EFM design)
2 x Dual CV Mixer (EFM design)
1 x Sample & Hold (Ray Wilson design)
1 x Steiner Synthacon VCF (Ken Stone design)
1 x LAG (EFM design)
1 x Main Ouput Bus & Headphones Preamp (Ray Wilson design)
1 x Noise Source (Polyfusion design)
1 x VCO Octave Switch

Oakley Voltage Controlled State Variable Filter

"This is a two pole multimode filter capable of high pass, low pass, band pass and notch output modes. All four outputs are available simultaneously. This new version of the very popular Oakley design is based around the classic two pole state variable filter topology as used in a variety of vintage synths including the Oberheim SEM and OB-X. At high resonance the Oakley SVF will oscillate over the whole of the audio band and is temperature compensated.

The design is intended to fit into a 1U wide 'filter-core' module or a more fully featured 2U wide panel with seven control pots.

The 1U 'Filter Core' format is our new way of handling filter modules. Although the 1U module can be used as a filter module on its own, it is expected that users will make use of external mixers to control CV and audio levels going into the filter. In this way, you will be able to have a collection of space saving 1U filter cores that can be used with any generic mixer module. The Oakley Multimix is an ideal choice for a handy mixer module."

More info on the Oakley Modular site.

The Oakley Sound Orbital

"The Orbital is a classic three VCO monosynth with powerful features. It uses the same tried and tested circuits as the Oakley Modular System. It has the same powerful huge sound but in a more compact and classic format.

My design brief was simple. To build a superb analogue monosynth for musicians using existing Oakley PCBs and to fit it all in a 4U rack. It had to be simple to operate, yet flexible enough to keep virtually everyone happy. So what has the Orbital got to offer:

Three VCOs. Each oscillator is the Oakley 'One of three' VCO with sine, triangle, pulse and sawtooth available simultaneously. An ingenious mixing system keeps the overall volume level the similar as the waveforms are switched in and out. Synchronisation is provided so that VCO 2 and/or VCO 3 can be synched to VCO1. VCO2 can have its pulse width modulated by one of the ADSRs. While VCO 3 can have its pitch swept by the envelope generator, for powerful lead sync sounds."

Title link takes you to more info and images on the Oakley site.

Kirkcarrion by Takla Makan aka Oakley Sound

"Deep reverberating drones and ethereal sighing pads combine to create quite a dramatic beginning to ‘On Rookwood Down’. In no time at all, however, the first of many ballsy sequences surges forward. It overcomes the stormy effects and fits perfectly with a shuffling hissing rhythm. The resultant wall of syncopations attracted my attention away from a subtle lead line before a more forceful melody darts between the beats..."

via Tony of Oakley Sound on the SDIY list (note the above quote comes from a review of the release mentioned below and not Tony):

"OK, I think most of you know that I produce the odd tune from time to time. But I just got this review of my latest album. I think he likes it...

More information and samples here.

I should say that it's not just Oakley modular on here. I use a heap of other stuff too.

Download 320kB mp3 of the whole album available from me for 2GBP.

Or you can purchase FLAC and hear some more samples from Musiczeit.

Tony"

Just a quick note on why this went up here and not MATRIXSYNTH-C based on the posting guidlines: The reason is simple. It give you insight to the music made by the man behind Oakley Sound Systems. The post is about Oakley.

The ASV - Complete Synthesiser Voice by Oakley

via Oakley Sound Systems

"The Oakley Analogue Synthesiser Voice, or ASV, is a complete analogue synthesiser in a 5U wide, or four MU width, module for the MOTM and MU formats. It consists of the traditional synthesiser architecture of two oscillators feeding a single filter, via a mixer, and then to an amplifier. Two identical four stage envelope generators (ENV1 & ENV2), and one sine wave low frequency oscillator (LFO) act as modulation sources to control the sound in a dynamically interesting way.

Each voltage controlled oscillator (VCO) is based around a classic sounding sawtooth core. VCO2's frequency can be hard synchronised to VCO1 by a front panel switch. Both sawtooth and variable width pulse waves are generated. These are both available from the socket field but only one from each VCO may be selected in the audio mixer that feeds the filter. An additional triangle wave from VCO1 can mixed with the audio signal from the filter prior to the final amplifier.

The AVS also has a sub-oscillator. This produces a triangle wave output that is half the frequency of VCO 1, that is, one octave below the pitch of VCO1. By default this is sent to the third level control on the mixer although this can be overridden by inserting a jack plug into the 'mixer in' socket. The sub-oscillator's output is also available on the socket field.

The pitch of both VCOs may be controlled by a master tune control on the front panel. Two octave switches independently control the base pitch of each of the VCOs. Each switch covers a range of three octaves. The pitch of VCO2 may also be offset from VCO 1 by the VCO 2 Tune control. The range of this control covers just over one octave from unison at the 9 o'clock position to an octave above at around 3 o'clock.
Pitch may also controlled by external control voltages (CVs) and internal sources such as the LFO and ENV1. Front panel pots control the depth of this modulation.

The pulse wave output from each VCO can be manually controlled by the pulse width controls. At their middle settings both pots will produce a 50% pulse wave, ie. a square wave. The pulse width of both VCOs can be dynamically altered with external CVs, or internal sources. Both VCOs use special circuitry to make the their average voltage output equal to zero. This reduces audible thumping when the pulse width is modulated quickly."

Additional info at Oakley Sound Systems.

5U // Oakley - Overdrive

Published on Mar 10, 2016 DiscoverNoise

"DiscoverNoise 031-
5U 007-

Presentation of the Oakley Overdrive module build by Krisp1.

Patchsheet: https://cloud.1und1.de/ngcloud/extern...

Oakley Overdrive: http://www.krisp1.com/store/index.php..."

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MOTM Oakley Modular

via this auction

"Most modules are by Synthesis Technology, and are build with great care, some were factory build. All are in perfect working order and calibrated. The modules are mounted in simple but sturdy 19" case.

Module list:
- MOTM 300 ultra VCO 2x
- Oakley VCO 1x
- MOTM 120 sub mux 1x
- MOTM 101 SH/Noise 1x
- MOTM 490 VCF (Moog filter) 1x
- MOTM 440 VCF (Prophet P5 filter) 1x
- MOTM 420 VCF (Korg MS 20 filter) 1x
- MOTM 910 cascade patch panel 1x
- MOTM 800 ADSR 3x
- MOTM 510 Wavewarper 1x
- MOTM 380 uLFO 1x
- MOTM 190 VCA 1x
- Oakley ADSR/VCA 1x
- Oakley Multimix 1x
- MOTM 650 Midi/CV 1x (the best Midi/CV out there!)
- MOTM 950 Powersupply (set to 220VAC, can be changed to 120VAC easily)."

Oakley TB-3031 / Roland TB303 Clone

Note: Auction links are affiliate links for which the site may be compensated.
via this auction

For those interested, the seller also has an EVENTIDE H-910 for parts/project listed here.

Googlish:

"For auction is one of my DIY projects that I can not complete due to time constraints.

It is a OAKLEY SOUND TB3031 Roland TB 303 clone with an integrated MIDI interface and CV / GATE converter.
Midi interface remains a problem, above say it's somewhere a soldering defects available.
By pressing the lower right corner of the device jumps to function. With a CV gate converter I tested the Oakley, it works flawlessly
However, the Midi zickt around like said.

It is the rare components are installed, sound is excellent, but as I now also have other devices missing here, my time to debug the ready.
For someone with time and knowledge of electronics certainly not a problem, since it's really just a trifle.

The clone is the TB3031 by Oakley Sound, Midi interface from Seb's DIY Page. Links I can gladly provide on request. Schematics and code is all
freely available.

Supplied with power supply and well packed (which is already visible in the photos)."

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Oakley SVF Oberheim SEM OB-X Filter in Frac Format

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

"Here's the Oakley SVF Oberheim SEM OB-X filter. Oakley sound is one of the best, and this module is in perfect working order. In addition to having the two unit controls and inputs/outputs (tons of control - way more than other clones), it has a modified resonance control (the big knob selector) that allows the user to set different resonance characteristics to the filter. I did not build this but it has been rock solid for me.

Visit the Oakley site to learn more. Oakleysound.com"

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New Oakley 5U Flanger and Chorus Module

via Oakley Sound where you'll find full details. The following overview captured for the archives.

"The Oakley Flanger & Chorus module is an analogue delay line capable of delaying audio signals from 0.5mS to 15mS. In conjunction with an external LFO module this unit can be used to produce real time vibrato, chorus and flanging effects. With the feedback control set to maximum the module can be set to self-oscillate
The delayed audio output is available from the DLY OUT socket. While the MIX OUT socket has a equal mix of input signal and delayed signal. The phase of the delayed signal that is mixed may be selected to be inverted (NEG) or non-inverted (POS) by the use of the MIX switch. This is particularly useful when used for chorus or flanging as the two modes can create completely different effects.

A feedback path from the delayed output back to the input is available and you have control over both the amount, via the FEEDBACK pot, and phase of the signal, via the FBK switch. Inserting a jack plug into the FBK IN socket will break the internal feedback path and allow another signal to be sent into the delay line. This could allow additional processing of the raw delayed signal, from the DLY OUT socket, prior to being sent back into the delay line again. For example, using a VCA to process the feedback signal would allow CV control of the feedback level.
There are two control voltage (CV) inputs. CV1 has a fixed sensitivity while CV2 has its own sensitivity control. CV2's control pot is a reversible attenuator, so you are able to adjust not only the depth of the modulation but also the polarity. Although not specifically designed to track to 1V/octave, using the CV1 input, the module can be used as tuned delay line over a useful proportion of the full operating range.

The delay line itself is based around two 3207 bucket brigade delay (BBD) devices controlled by a voltage controlled oscillator (VCO) running from around 33kHz to over 1MHz. Audio bandwidth of the delayed signal extends to 14kHz and several unusual design features ensure that the module is relatively quiet compared to other units of its type.

Two LEDs provide visual indication of the signal level being sent to the BBD devices. The DRIVE control should be adjusted to ensure that the green LED remains lit for optimum signal level. The red LED will light when the signal level is close to, or is, being overdriven. The module will not be harmed when the signal is overdriven and there is a soft clipping circuit in place to ensure the overdriven sound is musically useful. The DRIVE control allows a variety of different signal levels to be used with the module although the expected signal level would be expected to be between 0.5V(peak) and 8V(peak).

The printed circuit board (PCB) uses a mixture of through hole and surface mount components. The op-amps, non-polar capacitors, resistors and small diodes are all surface mount. The op-amps are SO8 packages, capacitors and resistors 0805 and diodes SOD323. Most builders should find these no problem to solder even if they have not assembled modules with surface mount devices before. To calibrate the unit an oscilloscope is useful but not essential.

The module accommodates either our standard Oakley/MOTM power header or a Synthesizers.com power header. The supply voltage is +/-15V and current consumption is around +75mA and -45mA.

The PCB is 109mm (deep) x 124mm (height). The PCB is a four layer design, has tough solder mask both sides, and has bold component legending for ease of construction."

Berlin School Electronica // Gotharman meets 5U Marienberg & Oakley Modular Synth

video upload by THE TUESDAY NIGHT MACHINES

"Gotharman's Little Deformer 3, Gotharman's PolySpaze and my Marienberg + Oakley 5U Modular Synthesizer are having little Berlin School kind of synth jam session.

First, I patched up a typical analog synth sound with my 5U Marienberg/Oakley Modular Synth, which let me transpose the VCO and add fast FM with two switches.

I then programmed a 4 note sequence on Gotharman's Little Deformer 3 and sent it to the Modular via the CV.OCD MIDI to CV converter, which is easier for musical CV sequencing than the Deformer's own CV outputs.

The Linnstrument MIDI controller triggers the red Gotharman PolySpaze polysynth, which plays a morphable pad sound. Very simple, no MPE, etc. All audio goes into the Little Deformer 3, where it is mixed with the LD3's own sounds and processed with delay and granular audio FX.

On the LD3 there are three percussive parts playing and another 5 step sequence, which I fade in around the middle or so. All sounds can be muted, volume-controlled and even modulated with the mappable fron panel knobs. Of course, I also created a second morph layer, with a slightly different melody and changed FX settings, that produce more glitchiness and also tighter delay FX.

It was fun :) Let me know if you have questions in the comments below! Thanks for watching!

Gotharman Website:
https://gotharman.dk

Marienberg Devices Modular Synth Website:
http://marienbergdevices.de/en/das-un...

Oakley by Krisp1:
https://www.krisp1.com/store/

I love to hear from you and talk about synths and stuff, so always feel welcome to post a comment or send me an e-mail to:
➤ tuesdaynightmachines@gmail.com

Discover more of THE TUESDAY NIGHT MACHINES here:
➤ Music: https://nightmachines.bandcamp.com
➤ Pictures: https://www.youtube.com/c/flx04/commu...
➤ Homepage: https://nightmachines.tv

Oakley MOTM State Variable Filter - MOTM Format

via this auction

via Oakley Sound:
"This is a two pole multimode filter capable of high pass, low pass, band pass and notch output modes. All four outputs are available simultaneously. This new version of the very popular Oakley design is based around the classic two pole state variable filter topology as used in a variety of vintage synths including the Oberheim SEM and OB-X. At high resonance the Oakley SVF will oscillate over the whole of the audio band and is temperature compensated..."

The Oakley Diode Superladder Variable Slope VCF

via Oakley Sound where you'll find full details. The following is just an excerpt.


"The Oakley Diode Superladder is the new version of our long running Superladder filter design. This new version has been especially created to use diodes as the control element instead of transistors. Earlier versions of the Superladder could be built either as transistor or diode ladders but in 2007 a choice was made to concentrate on the transistor version only. The Superladder was therefore optimised to sound good with transistors only...


The Diode Superladder VCF features both voltage control over frequency and resonance. Unique to any diode ladder filter is has a variable shape output. This incorporates a feature first seen on the Oakley Orbital prototypes. A single pot allows you to vary the output from one (or two) pole low pass to four (or five) pole low pass via band pass in the middle."

Oakley Krisp1 EFG Deluxe Ready to Ship

via krisp1 via krisp1 on Facebook
"first few in stock ready to ship"
"An envelope follower takes an audio input and converts it into a control voltage. This control voltage will rise and fall with the overall volume of the input signal. The louder the input, the bigger the output of envelope follower. The Oakley EFG has a fully variable speed CV output thanks to its internal four stage slew generator. Set to fast the CV output will respond very quickly to incoming audio and is therefore suitable for tracking fast moving cymbal and hi-hat patterns. Set it more slowly and it is more useful in processing overall audio volume. By using the CV output to control VCAs and VCFs it is very easy to create synchronised patterns that keep in perfect time with a drum machine or other musical input.

Another feature of the Oakley EFG, is the provision of a gate extractor. This part analyses the peaks in the music and creates a gate type signal in time with these peaks. This can be used to trigger envelope generators in time with an external drum loop or click track. Two rotary controls, threshold and response, enable you to get clean gate signals from all sorts of input material.

The Oakley EFG now comes with a wide range three stage input pre-amplifier. This allows guitars and other unbalanced external instruments to be processed simply. You can use this output for driving other modules.

This is the Deluxe version of the module utilises a built in Little-Lag module

The EFG,has three LEDs. One showing input overload, one for gate status, and one for a visual indication of the slewed CV output.
Current draw is around +50mA and -40mA.

Supplied with 18" power cord"

Oakley Croglin Voltage Controlled Dual Low Pass Filter

via Oakley where you'll find more info. A snip for the archvies:

"The Oakley Croglin Voltage Controlled Filter is based around two unusual and quirky low pass filter circuits that operate either together or against each other.

The filter design is inspired by a peculiar low pass filter topology first seen in a portable synthesizer from the late 1970s. For the Croglin VCF I have completely redesigned the circuit to produce a stable, lower noise design that unlike the original covers a much wider frequency range and gives the user far greater control over the parameters of the filter.

The cut off frequency of each filter can be controlled by a common control voltage and the front panel's Frequency pot. The second filter's cut off frequency can also be offset from the first. This can be done with either the Offset pot or an offset CV. The offset can be both positive, making the cut off frequency of the second filter higher than the first with a positive input CV, or negative, making the frequency lower than the first.

The two filters work in parallel on the audio input signal. The output of the first filter is then passed directly to the output but a proportion of the second filter may be added or subtracted from this. The level of the second filter is controlled by the Duality pot. In the middle position the Duality pot allows no audio to come from the second filter. Fully clockwise the second filter is added to the first filter's output. Fully anti-clockwise the second filter's output will subtract and cancel out those parts of it that are common with the first's output. A wide variety of tonal responses can be made; from the traditional low pass filter and band pass sounds to complex vocal like formants."


Croglin VCF Demos by Takla Makan
"These are some demonstration tracks made with the Oakley Sound Croglin VCF. The set up is a standard synth with two VCOs, one VC-LFO, one Croglin VCF, a couple of Multimixes and a couple of ADSR/VCAs.

In all of them the Croglin is both manually tweaked and automagically tweaked by either the LFO or the ADSR."