Download
Share
Print this page
  1. Manuals
  2. Brands
  3. aion Manuals
  4. Music Pedal
  5. Arcturus
  6. Manual

aion Arcturus Manual

Natural overdrive
Hide thumbs

Advertisement

Quick Links

Download this manual
PROJECT NAME
ARCTURUS
BASED ON
Nobels ODR-S Overdrive Special
EFFECT TYPE
Overdrive
PROJECT SUMMARY
A variation of the more famous ODR-1 with a full three-band tonestack and germanium diode clipping.
Actual size is 2.3" x 2.42" (main board) and 1.78" x 0.86" (bypass board).
ARCTURUS NATURAL OVERDRIVE
BUILD DIFFICULTY
Intermediate
DOCUMENT VERSION
1.0.0 (2023-09-08)
1

Advertisement

loading
Need help?

Need help?

Do you have a question about the Arcturus and is the answer not in the manual?

Questions and answers

Related Manuals for aion Arcturus

Summary of Contents for aion Arcturus

  • Page 1 DOCUMENT VERSION Overdrive 1.0.0 (2023-09-08) PROJECT SUMMARY A variation of the more famous ODR-1 with a full three-band tonestack and germanium diode clipping. Actual size is 2.3” x 2.42” (main board) and 1.78” x 0.86” (bypass board). ARCTURUS NATURAL OVERDRIVE...

  • Page 2: Table Of Contents

    Baxandall arrangement. The Arcturus is a direct adaptation of the ODR-S, but with the JFET switching removed in favor of true bypass. We have also added an optional correction for what has been seen as an error in the original design related to the input bias of the second op-amp stage.

  • Page 3: Parts List

    Metal film resistor, 1/4W Metal film resistor, 1/4W Metal film resistor, 1/4W Metal film resistor, 1/4W Power supply filter resistor. LEDR Metal film resistor, 1/4W LED current-limiting resistor. Adjust value to change LED brightness. Film capacitor, 7.2 x 2.5mm ARCTURUS NATURAL OVERDRIVE...
  • Page 4 Any germanium diode should work about the same in this circuit, so use whatever you can find. Germanium Germanium diode, DO-7 2N5457 BJT transistor, NPN, TO-92 Substitute. Original uses BF245C. 2N5088 Operational amplifier, dual, DIP8 Substitute. Original uses 2SC3198-BL. ARCTURUS NATURAL OVERDRIVE...
  • Page 5 Switchcraft 111X or equivalent. 1/4" mono 1/4" phone jack, closed frame Switchcraft 111X or equivalent. 2.1mm DC jack, 2.1mm panel mount Mouser 163-4302-E or equivalent. 3PDT Stomp switch, 3PDT 125B Enclosure, die-cast aluminum Can also use a Hammond 1590N1. ARCTURUS NATURAL OVERDRIVE...

  • Page 6: Build Notes

    C8/R10 fix. Midrange pot value The midrange pot is 30kC on the original ODR-S. This value is basically impossible to find without custom-ordering in large quantities, so just use 25kC or even 20kC. ARCTURUS NATURAL OVERDRIVE...

  • Page 7: Schematic

    SCHEMATIC 1N5817 220uF 220uF 220uF 47uF 100n 2N5457 IC1A RC4558P IC2A RC4558P 50kB 330pF 100n 150pF 2.2uF 1N914 IC2B RC4558P IC1B 2N5088 RC4558P 2N5088 3.3uF DRIVE HIGH 500kA 50kB ARCTURUS NATURAL OVERDRIVE...

  • Page 8: Drill Template

    -0.775, y: +1.71 x: -0.775, y: +1.71 x: +0.775, y: +1.71 ø9/32” ø9/32” ø9/32” DRIVE LEVEL x: -0.775, y: +0.41 x: +0.775, y: +0.41 ø9/32” ø9/32” CENTER (0,0) FOOTSWITCH x: -0.775, y: -1.775 x: 0, y: -1.775 ø5/16” ø15/32” ARCTURUS NATURAL OVERDRIVE...

  • Page 9: Enclosure Layout

    ENCLOSURE LAYOUT Enclosure is shown without jacks. See next page for jack layout and wiring. 125B ARCTURUS NATURAL OVERDRIVE...

  • Page 10: Wiring Diagram

    WIRING DIAGRAM NC OUT GND +V +V JACK GND JACK GND GND PCB 125B ARCTURUS NATURAL OVERDRIVE...

  • 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 (2023-09-08) Initial release. ARCTURUS NATURAL OVERDRIVE...