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PROJECT NAME
TITAN
BASED ON
Fulltone
OCD
®
EFFECT TYPE
Overdrive / distortion
PROJECT SUMMARY
A legendary hard-clipping overdrive pedal that makes almost any rig sound better.
Actual size is 2.3" x 1.86" (main board) and 1.78" x 0.87" (bypass board).
Fulltone
®
, OCD
®
Products Inc. Any use of these trademarks is for comparative purposes only. Aion FX has no
affiliation with Fulltone Musical Products and this project is not endorsed by them.
TITAN DYNAMIC DRIVE
®
and Obsessive Compulsive Drive
BUILD DIFFICULTY
Easy
DOCUMENT VERSION
1.0.0 (2023-03-24)
IMPORTANT NOTE
®
are registered trademarks of Fulltone Musical
1

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Summary of Contents for aion TITAN

  • Page 1 Obsessive Compulsive Drive ® are registered trademarks of Fulltone Musical Products Inc. Any use of these trademarks is for comparative purposes only. Aion FX has no affiliation with Fulltone Musical Products and this project is not endorsed by them. TITAN DYNAMIC DRIVE...
  • Page 2: Table Of Contents

    11 Licensing 7 Schematic 11 Document Revisions INTRODUCTION The Titan Dynamic Drive is an adaptation of the legendary Fulltone ® ® . The Obsessive Compulsive Drive was first released in 2005, itself a modified version of the Voodoo Labs Overdrive with several added features and tweaks.
  • Page 3: Parts List

    Film capacitor, 7.2 x 2.5mm Film capacitor, 7.2 x 2.5mm Film capacitor, 7.2 x 2.5mm 47uF Electrolytic capacitor, 5mm Reference voltage filter capacitor. 100uF Electrolytic capacitor, 6.3mm Power supply filter capacitor. 100n MLCC capacitor, X7R Power supply filter capacitor. TITAN DYNAMIC DRIVE...
  • Page 4 2.1mm DC jack, 2.1mm panel mount Mouser 163-4302-E or equivalent. 3PDT Stomp switch, 3PDT BATT. 9V battery snap Soft vinyl type. The hard-shell type will not fit. 125B Enclosure, die-cast aluminum Can also use a Hammond 1590N1. TITAN DYNAMIC DRIVE...
  • Page 5: Build Notes

    The OCD V1 had seven major versions, and many of the circuit changes across versions make a noticeable difference to the tone. In this updated version of the Titan, we added DIP switches to make several of these changes selectable so you can capture the main sonic characterics of any version.
  • Page 6 It will still work, but the middle position will be the same as LED clipping. Germanium diodes The Titan uses two germanium diodes as part of the optional clipping combinations. These days, the Russian D9 series are probably the most readily-available NOS germaniums, and will sound great in this circuit.
  • Page 7: Schematic

    SCHEMATIC 100R N5817 100uF 47uF 100n HP/LP IC1A TL082P IC1B TL082P D4 D5 220pF 100n 220pF 2N7000 150k DRIVE TITAN DYNAMIC DRIVE...
  • Page 8: Drill Template

    0.65, y: +1.71 ø9/32” ø9/32” HP/LP TONE CLIPPING x: -0.85, y: +0.66 x: 0, y: +0.66 x: +0.85, y: +0.66 ø1/4” ø9/32” ø1/4” CENTER (0,0) FOOTSWITCH x: -0.775, y: -1.20 x: 0, y: -1.20 ø5/16” ø15/32” TITAN DYNAMIC DRIVE...
  • Page 9: Enclosure Layout

    ENCLOSURE LAYOUT Enclosure is shown without jacks. See next page for jack layout and wiring. 125B TITAN DYNAMIC DRIVE...
  • Page 10: Wiring Diagram

    GND +V +V JACK GND JACK GND GND PCB 125B Shown with optional 9V battery. If battery is omitted, both jacks can be mono rather than one being stereo. Leave the far-right lug of the DC jack unconnected. TITAN DYNAMIC DRIVE...
  • Page 11: Document Revisions

    (In other words: you don’t have to go out of your way to advertise the fact that you use these PCBs, but please don’t go out of your way to hide it. The guitar effects industry needs more transparency, not less!) DOCUMENT REVISIONS 1.0.0 (2023-03-24) Initial release. TITAN DYNAMIC DRIVE...