125B · 3 knobs
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 18 | ||||
| R1 | 360k | 360k | Metal film resistor, 1/4W | |
| R2 | 15k | 15k | Metal film resistor, 1/4W | |
| R3 | 3k | 3k | Metal film resistor, 1/4W | |
| R4 | 1k | 1k | Metal film resistor, 1/4W | |
| R5 | 1k | 1k | Metal film resistor, 1/4W | |
| R6 | 27k | 27k | Metal film resistor, 1/4W | |
| R7 | 10k | 10k | Metal film resistor, 1/4W | |
| R8 | 147k | 147k | Metal film resistor, 1/4W | |
| R9 | 1M | 1M | Metal film resistor, 1/4W | |
| R10 | 5k6 | 5.6k | Metal film resistor, 1/4W | |
| R11 | 2k2 | 2.2k | Metal film resistor, 1/4W | |
| R12 | 4k7 | 4.7k | Metal film resistor, 1/4W | |
| R14 | 47k | 47k | Metal film resistor, 1/4W | |
| R15 | 31k6 | 31.6k | Metal film resistor, 1/4W | |
| R16 | 31k6 | 31.6k | Metal film resistor, 1/4W | |
| R17 | 51R | 51 | Metal film resistor, 1/4W | Power supply filter resistor. |
| RPD | 2M2 | 2.2M | Metal film resistor, 1/4W | Input pull-down resistor. |
| LEDR | 10k | 10k | Metal film resistor, 1/4W | LED current-limiting resistor. Adjust value to change LED brightness. |
| Capacitors 19 | ||||
| C1 | 47n | 47n | Film capacitor, 7.2 x 2.5mm | |
| C2 | 100pF | 100p | MLCC capacitor, NP0/C0G | |
| C3 | 220n | 220n | Film capacitor, 7.2 x 2.5mm | |
| C4 | 220n | 220n | Film capacitor, 7.2 x 2.5mm | |
| C5 | 220n | 220n | Film capacitor, 7.2 x 2.5mm | |
| C6 | 22uF | 22u | Electrolytic capacitor, 5mm | |
| C7 | 1uF | 1u | Film capacitor, 7.2 x 3.5mm | |
| C8 | 22n | 22n | Film capacitor, 7.2 x 2.5mm | |
| C9 | 4n7 | 4.7n | Film capacitor, 7.2 x 2.5mm | |
| C10 | 22n | 22n | Film capacitor, 7.2 x 2.5mm | |
| C11 | 4n7 | 4.7n | Film capacitor, 7.2 x 2.5mm | |
| C12 | 220n | 220n | Film capacitor, 7.2 x 2.5mm | |
| C13 | 1uF | 1u | Film capacitor, 7.2 x 3.5mm | |
| C14 | 4n7 | 4.7n | Film capacitor, 7.2 x 2.5mm | |
| C15 | 4n7 | 4.7n | Film capacitor, 7.2 x 2.5mm | |
| C16 | 22uF | 22u | Electrolytic capacitor, 5mm | Reference voltage filter capacitor. |
| C17 | 100uF | 100u | Electrolytic capacitor, 6.3mm | Power supply filter capacitor. |
| C18 | 470n | 470n | MLCC capacitor, X7R | Power supply filter capacitor. |
| C19 | 100n | 100n | MLCC capacitor, X7R | Power supply filter capacitor. |
| Diodes 3 | ||||
| D1 | 1N5817 | 1N5817 | Schottky diode, DO-41 | |
| D4 | 1N4007 | 1N4007 | Rectifier diode, DO-41 | |
| D5 | 1N4007 | 1N4007 | Rectifier diode, DO-41 | |
| Transistors 1 | ||||
| Q1 | 2N5457 | 2N5457 | JFET, N-channel, TO-92 | Can substitute any general-purpose JFET. |
| ICs 1 | ||||
| IC1 | CA3130EZ | CA3130EZ | Operational amplifier, DIP8 | |
| Potentiometers 3 | ||||
| DRIVE | 500kA | A500k | 16mm right-angle PCB mount pot | Audio (log) taper. |
| NATURE | 50kA | A50k | 16mm right-angle PCB mount pot | Audio (log) taper. |
| VOLUME | 50kB | B50k | 16mm right-angle PCB mount pot | Linear taper. |
| Switches 3 | ||||
| LOW | SPDT cntr. off | SPDT CNTR. OFF | Toggle switch, SPDT on-off-on | |
| MODE | SPDT on-on | SPDT ON-ON | Toggle switch, SPDT on-on | |
| FSW | 3PDT | 3PDT | Stomp switch, 3PDT | Available from Aion FX. |
| LEDs 3 | ||||
| D2 | 3mm green LED | 3MM GREEN LED | LED, 3mm, green diffused | |
| D3 | 3mm green LED | 3MM GREEN LED | LED, 3mm, green diffused | |
| LED | 5mm | 5MM | LED, 5mm, red diffused | |
| Jacks & sockets 4 | ||||
| IC1-S | DIP-8 socket | DIP-8 SOCKET | IC socket, DIP-8 | |
| IN | 1/4" stereo | 1/4" STEREO | 1/4" phone jack, closed frame | Switchcraft 112BX or equivalent. |
| OUT | 1/4" mono | 1/4" MONO | 1/4" phone jack, closed frame | Switchcraft 111X or equivalent. |
| DC | 2.1mm | 2.1MM | DC jack, 2.1mm panel mount | Lumberg NEB/J 21 C or equivalent. |
| Hardware 2 | ||||
| BATT. | 9V | 9V | 9V battery snap | Soft vinyl type. The hard-shell type will not fit. |
| ENC | 125B | 125B | Enclosure, die-cast aluminum | Can also use a Hammond 1590N1. |
Other boards based on the BJFe Honey Bee
- Procyon (Legacy) Aion FX · 1590B
- Honey Lamb Sheepylove · €10.00