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Saturday, October 18, 2008
Oakley Sound MIDI CV Converter
images at this auction"Oakleysound midiDAC MIDI to CV converter module suitable for use in any Oakleysound or MOTM modular system. It can also be used for driving any 1V/ octave synthesizer with CV and gate inputs.
Features of the module are as follows (to largely quote the original Oakleysound website info):
Output options:
Gate: +5V or +15V gate.
Pitch CV: 128 steps of 12 bit accurate pitch voltage conforming to 1V/octave (trimmable). Pitch bend is added to this signal and can be trimmed to give the maximum bend interval. It can be trimmed to zero if required.
Pitch Bend: This signal is available individually. It is bipolar; so with no bend, the output CV is zero.
Velocity: 0 to 10V proportional to midi note on velocity.
Aftertouch: 0 to 10V proportional to midi channel aftertouch.
Legato: This signal goes to +5V when two notes are played at the same time. This can allow slides to be switched in at will; TB303 style.
Modulation wheel: 0 to 10V proportional to mod wheel position.
CC: Continuous controlled number 100.
Other Features:
It has three PCB mounted pots to facilitate TUNE, BEND DEPTH and SLIDE RATE.
The midiDAC includes a TB303 style slide circuit. This can be turned on and off manually, or by playing two notes at once. The pitch will glide up or down to the most recently pressed note. A pot controls the speed of the slide.
There is a note stack within the firmware to allow the midiDAC to remember notes pressed. Thus if two or more notes are pressed at the same time, the oldest notes will be remembered so that if the more recent notes are removed the pitch will return to the still pressed older notes.
New note retriggering can be switched in or out to suit your playing style. Note retriggering will allow you to play super fast keyboard runs. Each new note pressed will retrigger the synthesiser's envelopes irrespective of how many others are still held down.
MIDI channel is selected in traditional binary fashion using a 4-way DIP switch located on the PCB.
Power Requirements:
The module requires a split supply of +/-15V, as provided by Oakley, MOTM and many other makes of modular system.
The PCB has been expertly stuffed with high quality components and then carefully cleaned of solder flux. The components include 1% resistors (with 0.1% where necessary), and turned-pin sockets for each of the fourteen ICs. The panel has been fitted with eight Switchcraft quarter-inch jack sockets for PITCH, VELOCITY, BEND, MODULATION, AFTERTOUCH, CC, GATE, and LEGATO connections. Two high quality threaded DIN sockets have been utilised for MIDI IN & THRU. Blue and white LEDs, complete with fresnel lenses, give a visual indication of gate and legato status, respectively.The 2U wide front panel has been precision machined by Schaeffer of Berlin, and is intricate in its design with full legending and knob divisions from 0 - 10. It has been designed in this way to accurately match MOTM panels, and fits well into an MOTM modular, the panel itself being black and an equivalent 3mm thick.
3 black knobs with spun aluminium inserts are fitted, as per those used on all Oakleysound modules, and very similar to those utilised on MOTM modules. The protective films are still in place on the inserts. The module has never been mounted in any system, but contains the 4 appropriate mounting holes in order to do so.
Further information can be found at http://www.oakleysound.co.uk/mididac.htm"
Memorymoog Plus
images at this auction"The MemoryMoog is without a shadow of doubt, the most gutsy, powerful Polysynth ever!. Three VCOs with Mixable waveforms, dual concentric vernieresque tuning pots feeding true DISCRETE Moog Ladder filters into overdrive and beyond, ultra fast envelope generators (ADSR, not ADS as on the Mini), Prophet-5 style Polymod section with numerous routings, Alpha numeric readout that gives the controls` old and new values side by side when editing existing patches so they can be returned, Memorizer that holds 100 patches driven by a 0-9 a-d keypad with a massive LED patch number readout above, loads of interfacing including the ability to drive a Monosynth from the highest note played from either CV/Gate or CV/S-Trig, the Plus model has a 4000 note step/realtime sequencer with editing, accurate Tempo readout, external clock, storage of six sequences including one for the external Monosynth, Sequence merging and a Security passcode to stop anyone from overwriting your presets and a simple 3-port ! MIDI interface that only responds to note-on note-off and Patch change info.. The Polymod section is enhanced by dropping the third VCO into LFO mode with loadsa destinations leaving enough VCO Power to spare.. The MM`s Mixer includes a Pink noise generator and the filter kbd tracking is the same as the Mini, OFF, 1/3, 2/3, FULL. various ENV modes are also included such as return to Zero and Conditional contour that makes the EG finish its Attack/Release cycle if you just touch a key. The Unison mode is programmable for each patch.. choose the number of voice cards from 1 (like a Minimoog, just 3-VCOs) to 6 (all 18 for real mayhem!) and the type of keying.. Last/Hi/Lo note priority, multiple/single triggering. the Poly mode has different trigger modes too, such as Cyclic (like an OB-Xa / Polysix etc) and a mode like the Prophet where the same repeated note uses the same voice card. The arpeggiator (all MMs) has also 6-modes of operation)...SO Apart from not having separate clocks for th! e PWM, Arpeggiator and LFO duties (also Sequencer on the plus) the MemoryMoog is stuffed with functionality too, shame the thing didn`t have a multimode filter, but if it did there`d be no excuse for keeping the Jupiter-6 (;-)."
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