Akashic Guitar effects PCB lookup
DRIVENATUREVOLUME

125B · 3 knobs

Aion FX

ProcyonNatural Overdrive

Based on the BJFe Honey Bee· 2 other boards clone it

Category
Overdrive
Controls
Drive · Nature · Volume
Difficulty
Easy
Price
$12.50in stock

From the vendor

One of the original hand-made boutique pedals, originally modeled after vintage Supro amps and noted for its dynamic low-gain tone.

The Procyon Natural Overdrive is a clone of the BJFe Honey Bee Overdrive, a circuit first released in 2002 that is credited for starting the “low gain overdrive” trend.

The circuit itself is a rather unique overdrive design, incorporating both soft and hard clipping and utilizing frequency-dependent negative feedback from different points in the circuit, for a result that is often called “amplike” in tone. It is very loosely based on the RAT, and was inspired by the sound of overdriven Supro amps.

These pedals were handmade in Sweden and were extremely expensive ($300-400 USD), and so in 2011 an agreement was made with BearFoot FX to produce them in the USA for a more reasonable cost.

Bearfoot has also released a number of variants of this basic circuit such as the Model H, Model G, Honey Beest, Uber Bee, and Sparkling Yellow Overdrive. While each of these circuits are similar, the Procyon project only supports the standard Honey Bee (both BJFe and BearFoot versions, which have minor differences).

The updated Procyon V2 has been completely overhauled from the earlier version. Based on our research of several different Honey Bee traces, we concluded that the original FSB schematic (which all DIY Honey Bees have been based on for nearly 15 years) was incorrect and does not represent an actual Honey Bee. You can read more about our conclusions in our article, Revisiting the Original Honey Bee FSB Trace.

Note: 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.

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 57 rows

Report a wrong parse
RefValueNormalizedTypeNotes
Resistors 18
R1360k360kMetal film resistor, 1/4W
R215k15kMetal film resistor, 1/4W
R33k3kMetal film resistor, 1/4W
R41k1kMetal film resistor, 1/4W
R51k1kMetal film resistor, 1/4W
R627k27kMetal film resistor, 1/4W
R710k10kMetal film resistor, 1/4W
R8147k147kMetal film resistor, 1/4W
R91M1MMetal film resistor, 1/4W
R105k65.6kMetal film resistor, 1/4W
R112k22.2kMetal film resistor, 1/4W
R124k74.7kMetal film resistor, 1/4W
R1447k47kMetal film resistor, 1/4W
R1531k631.6kMetal film resistor, 1/4W
R1631k631.6kMetal film resistor, 1/4W
R1751R51Metal film resistor, 1/4WPower supply filter resistor.
RPD2M22.2MMetal film resistor, 1/4WInput pull-down resistor.
LEDR10k10kMetal film resistor, 1/4WLED current-limiting resistor. Adjust value to change LED brightness.
Capacitors 19
C147n47nFilm capacitor, 7.2 x 2.5mm
C2100pF100pMLCC capacitor, NP0/C0G
C3220n220nFilm capacitor, 7.2 x 2.5mm
C4220n220nFilm capacitor, 7.2 x 2.5mm
C5220n220nFilm capacitor, 7.2 x 2.5mm
C622uF22uElectrolytic capacitor, 5mm
C71uF1uFilm capacitor, 7.2 x 3.5mm
C822n22nFilm capacitor, 7.2 x 2.5mm
C94n74.7nFilm capacitor, 7.2 x 2.5mm
C1022n22nFilm capacitor, 7.2 x 2.5mm
C114n74.7nFilm capacitor, 7.2 x 2.5mm
C12220n220nFilm capacitor, 7.2 x 2.5mm
C131uF1uFilm capacitor, 7.2 x 3.5mm
C144n74.7nFilm capacitor, 7.2 x 2.5mm
C154n74.7nFilm capacitor, 7.2 x 2.5mm
C1622uF22uElectrolytic capacitor, 5mmReference voltage filter capacitor.
C17100uF100uElectrolytic capacitor, 6.3mmPower supply filter capacitor.
C18470n470nMLCC capacitor, X7RPower supply filter capacitor.
C19100n100nMLCC capacitor, X7RPower supply filter capacitor.
Diodes 3
D11N58171N5817Schottky diode, DO-41
D41N40071N4007Rectifier diode, DO-41
D51N40071N4007Rectifier diode, DO-41
Transistors 1
Q12N54572N5457JFET, N-channel, TO-92Can substitute any general-purpose JFET.
ICs 1
IC1CA3130EZCA3130EZOperational amplifier, DIP8
Potentiometers 3
DRIVE500kAA500k16mm right-angle PCB mount potAudio (log) taper.
NATURE50kAA50k16mm right-angle PCB mount potAudio (log) taper.
VOLUME50kBB50k16mm right-angle PCB mount potLinear taper.
Switches 3
LOWSPDT cntr. offSPDT CNTR. OFFToggle switch, SPDT on-off-on
MODESPDT on-onSPDT ON-ONToggle switch, SPDT on-on
FSW3PDT3PDTStomp switch, 3PDTAvailable from Aion FX.
LEDs 3
D23mm green LED3MM GREEN LEDLED, 3mm, green diffused
D33mm green LED3MM GREEN LEDLED, 3mm, green diffused
LED5mm5MMLED, 5mm, red diffused
Jacks & sockets 4
IC1-SDIP-8 socketDIP-8 SOCKETIC socket, DIP-8
IN1/4" stereo1/4" STEREO1/4" phone jack, closed frameSwitchcraft 112BX 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 2
BATT.9V9V9V battery snapSoft vinyl type. The hard-shell type will not fit.
ENC125B125BEnclosure, die-cast aluminumCan also use a Hammond 1590N1.

Other boards based on the BJFe Honey Bee