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ED107 - PolyDAC(X) MIDI-CV
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The PolyDAC was a 4-channel MIDI-CV Converter originally designed by Paul Maddox and later released as open source.

The current ED107 firmware uses a 'Regular Cyclic' Mode for MIDI Note assignment. Incoming MIDI notes are assigned to the next free voice (even if it is the same note played repeatedly). So, each time you play a note it will step through and assign channels '1' then '2' then '3' then '4' then back to '1' again as you play. If you hold a note, new notes will be assigned to the next voice in that order that is free. If all voices are already assigned to held notes, the next note will use the lowest voice held.

 

SPECIFICATION
Resolution
12-bits on all analogue outputs
Gate (x4)
scaleable from 5V to 10V (factory build = 5.0V)
Note (x4)
1V/Oct
Velocity (x4)
0-10V
Pitchbend
-1V through 0V to +1V
Mod Wheel
0V through to 10V
After touch
0V through to 10V
Sustain
0V, 10V when on
CC1 - CC4
0V to 10V
RETRIGGER
When set to on and a new note comes in whilst an old one is held, the gate will ‘dip’ briefly
Mode
MONO1
 
MONO2
 
POLY
 

IGNORE/STEAL

(Poly mode only)

This allows you to select what happens to incoming notes when you have 4 held down.
Poly1 new notes are ignored, Poly 2 the oldest note is replaced
ASSIGN
This allows you to assign MIDI CC’s to the 4 ‘CV’ outputs.
Module Width
30HP
Module Depth
60mm
+12V @
120mA
-12V @
20mA
Latest Firmware
 
Bill of Materials - 3.5mm - 4mm
 
PCB Overlays - Column1-4 - Column 5 - Column 6 - Main PCB
 
Email:  elby-designs@bigpond.com
© Copyright 2000. All rights reserved.     Revised: June 15, 2019