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The PolyDAC was
a 4-channel MIDI-CV Converter originally designed by Paul Maddox
and released in partnership with Tony Allgood of Oakley Sound
Systems. Recently this designed was released to the general
public and is now no longer supplied by Oakley Sound Systems
The PolyDAC(X) is
now available here, with permission from Paul Maddox, and I
am now able to supply a new PCB and (optional) Component
Kit for this popular design.
Updated schematics
are provided below and readers are advised to visit
both Paul and Tony's
website for further details on the original designs.
CPU
Section
D-A
Converter Section
Output
Section 1
Output
Section 2
Output
Section 3
Output
Section 4
Power
Supply
The
PCB
Bill
Of Materials
Example
Panel Wiring Details
Download
PolyDAC Flash and EEPROM files
Download
PolyDAC Source
Available
now - a 1U 19" Rack Enclosure with Front Panel
  
Photos
show the White-on-Green panels.
White on Black also available.
*
Please note that these schematics are re-drafts of the original
schematics and that
the following alterations have been made to them:-
- I have used a new designator series to improve
readability of the circuits
- Previously unused I/O pins on the ATMEGA
have been bought out for future expansion
- The PCB has been relayed out
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