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GAINODCSPECTRUMLOW CUTMID BOOSTLEVEL

125B · 6 knobs

Aion FX

Andromeda DeluxeNatural Overdrive

Based on the Nordland ODR-C

Category
Overdrive
Controls
Gain · ODC · Spectrum · Low Cut · Mid Boost · Level
Difficulty
Intermediate
Price
$12.50in stock

From the vendor

An updated version of the definitive Nashville overdrive, handmade by the original circuit designer, adding three new controls and a number of other small refinements.

The Andromeda Deluxe is an adaptation of the Nordland ODR-C, a boutique overdrive first traced by Aion FX in 2021, based on the Nobels ODR-1.

The ODR-1 was originally released in 1992, designed by Kai Tachibana as an original circuit for Nobels. Intended as a budget alternative to the Tube Screamer, the build quality was less than stellar, but to those who played it, it was undeniable that the circuit itself was something special. It steadily increased in popularity over the following decades until the present. Today it’s often seen in lists of the top 10 overdrives of all time.

In 2019, Kai decided to revisit the ODR-1 and update it with a few new features under his own Nordland brand name. The result is the ODR-C Custom Overdrive, a brilliantly-designed handmade pedal that occupies the opposite end of the spectrum from the ODR-1 in both build quality and price.

It features three new controls: a low cut that fixes the bass-forward tone of the original, a midrange control that can boost or cut, and an “overdrive de-compress” (ODC) control that gradually adds higher-threshold clipping diodes in the soft-clipping stage. Each of the three knobs can be set to a position that emulates the original ODR-1, so the core circuit is the same despite all the added features.

The Andromeda Deluxe is based on the audio path of the ODR-C, only cutting out the complex polarity protection and LED dimmer circuit. Side by side, they sound the same. But we’ll reiterate that the original ODR-C is fantastic piece of engineering and it’s worth it if you can find one. Check out the tracing journal if you want to see what we’re talking about.

Note: The PCB-only version of this project uses a type of capacitor that has been temporarily discontinued by WIMA. Please see our news article about the issue and the substitution spreadsheet for project-specific recommendations. We are stocking an equivalent from Kemet in the mean time. The build document has not yet been updated to reflect this. It does not impact the kits.

Schematic

The schematic is in the vendor's build document, page 7. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 98 rows

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RefValueNormalizedTypeNotes
Resistors 42
R133k33kMetal film resistor, 1/4W
R21M1MMetal film resistor, 1/4W
R33k33.3kMetal film resistor, 1/4W
R42k72.7kMetal film resistor, 1/4W
R510k10kMetal film resistor, 1/4W
R61k21.2kMetal film resistor, 1/4W
R7820R820Metal film resistor, 1/4W
R81k51.5kMetal film resistor, 1/4W
R92k22.2kMetal film resistor, 1/4W
R1012k12kMetal film resistor, 1/4W
R1110R10Metal film resistor, 1/4W
R1239k39kMetal film resistor, 1/4W
R1312k12kMetal film resistor, 1/4W
R1410k10kMetal film resistor, 1/4W
R155k15.1kMetal film resistor, 1/4W
R1610R10Metal film resistor, 1/4W
R1710R10Metal film resistor, 1/4W
R182k22.2kMetal film resistor, 1/4W
R19150k150kMetal film resistor, 1/4W
R203k33.3kMetal film resistor, 1/4W
R211k21.2kMetal film resistor, 1/4W
R2243k43kMetal film resistor, 1/4W
R233k33.3kMetal film resistor, 1/4W
R24100R100Metal film resistor, 1/4W
R25100R100Metal film resistor, 1/4W
R261k21.2kMetal film resistor, 1/4W
R27100k100kMetal film resistor, 1/4W
R2810k10kMetal film resistor, 1/4W
R2910k10kMetal film resistor, 1/4W
R3022k22kMetal film resistor, 1/4W
R314k74.7kMetal film resistor, 1/4W
R3222k22kMetal film resistor, 1/4W
R335k15.1kMetal film resistor, 1/4W
R341k1kMetal film resistor, 1/4W
R351k21.2kMetal film resistor, 1/4W
R36150k150kMetal film resistor, 1/4W
R37150k150kMetal film resistor, 1/4W
R3810k10kMetal film resistor, 1/4W
R3913k13kMetal film resistor, 1/4W
R40150k150kMetal film resistor, 1/4W
R41470R470Metal film resistor, 1/4W
LEDR10k10kMetal film resistor, 1/4WLED current-limiting resistor. Adjust value to change LED brightness.
Capacitors 31
C168n68nFilm capacitor, 7.2 x 2.5mm
C222n22nFilm capacitor, 7.2 x 2.5mm
C3150pF150pMLCC capacitor, NP0/C0G
C482n82nFilm capacitor, 7.2 x 2.5mm
C5220n220nFilm capacitor, 7.2 x 3mm
C62.2uF2.2uFilm capacitor, 7.2 x 5mm
C7220n220nFilm capacitor, 7.2 x 3mm
C81uF1uFilm capacitor, 7.2 x 3.5mm
C92n72.7nFilm capacitor, 7.2 x 2.5mm
C1082n82nFilm capacitor, 7.2 x 2.5mm
C111n1nFilm capacitor, 7.2 x 2.5mm
C121uF1uFilm capacitor, 7.2 x 3.5mm
C1322n22nFilm capacitor, 7.2 x 2.5mm
C1427n27nFilm capacitor, 7.2 x 2.5mm
C15100n100nFilm capacitor, 7.2 x 2.5mm
C168n28.2nFilm capacitor, 7.2 x 2.5mm
C1768n68nFilm capacitor, 7.2 x 2.5mm
C182n72.7nFilm capacitor, 7.2 x 2.5mm
C191n1nFilm capacitor, 7.2 x 2.5mm
C201uF1uFilm capacitor, 7.2 x 3.5mm
C218n28.2nFilm capacitor, 7.2 x 2.5mm
C224n74.7nFilm capacitor, 7.2 x 2.5mm
C2382n82nFilm capacitor, 7.2 x 2.5mm
C241uF1uFilm capacitor, 7.2 x 3.5mm
C251uF1uFilm capacitor, 7.2 x 3.5mm
C26100n100nFilm capacitor, 7.2 x 2.5mm
C272.2uF2.2uFilm capacitor, 7.2 x 5mm
C2847uF47uElectrolytic capacitor, 5mmReference voltage filter capacitor.
C2947uF47uElectrolytic capacitor, 5mmReference voltage filter capacitor.
C30100uF100uElectrolytic capacitor, 6.3mmPower supply filter capacitor.
C31100n100nMLCC capacitor, X7RPower supply filter capacitor.
Diodes 7
D11N58171N5817Schottky diode, DO-41
D21N9141N914Fast-switching diode, DO-35
D31N9141N914Fast-switching diode, DO-35
D43mm green3MM GREENLED, 3mm, green diffused
D53mm green3MM GREENLED, 3mm, green diffused
D61N9141N914Fast-switching diode, DO-35
D71N9141N914Fast-switching diode, DO-35
Transistors 3
Q12N54572N5457JFET, N-channel, TO-92Substitute. Original uses 2N5486.
Q22N50882N5088BJT transistor, NPN, TO-92Substitute. Original uses BC549C.
Q32N50882N5088BJT transistor, NPN, TO-92Substitute. Original uses BC549C.
ICs 2
IC1RC4558PRC4558POperational amplifier, DIP8
IC2RC4558PRC4558POperational amplifier, DIP8
Potentiometers 5
DRIVE250kAA250k16mm right-angle PCB mount pot
SPECT50kBB50k16mm right-angle PCB mount potOriginal uses center detent, but this is not required.
MID50kBB50k16mm right-angle PCB mount potOriginal uses center detent, but this is not required.
ODC25kBB25k16mm right-angle PCB mount pot
LEVEL50kAA50k16mm right-angle PCB mount pot
Switches 1
FSW3PDT3PDTStomp switch, 3PDTAvailable from Aion FX.
LEDs 1
LED5mm5MMLED, 5mm, red diffused
Jacks & sockets 5
IC1-SDIP-8 socketDIP-8 SOCKETIC socket, DIP-8
IC2-SDIP-8 socketDIP-8 SOCKETIC socket, DIP-8
IN1/4" mono1/4" MONO1/4" phone jack, closed frameSwitchcraft 111X or equivalent.
OUT1/4" mono1/4" MONO1/4" phone jack, closed frameSwitchcraft 111X or equivalent.
DC2.1mm2.1MMDC jack, 2.1mm panel mountLumberg NEB/J 21 C or equivalent.
Hardware 1
ENC125B125BEnclosure, die-cast aluminumCan also use a Hammond 1590N1.