aion PROCYON Podręcznik - Strona 5

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BUILD NOTES

Variants

We compared several versions of the HBOD for the Procyon V2 and found that many of the components

had different values across the versions. Here are the circuits we referenced:

• Original BJFe (2 units from FSB trace)

• Bearfoot

• Moody Sounds DIY kit (designed in conjunction with BJFe)

• One Control

• BJFe Blueberry Bass Overdrive

Aside from the Blueberry, the changes are too numerous to list here, so we annotated the schematic

instead, which can be found on the next page.

We put the two biggest changes (the bass frequency capacitor and the operation of the Nature switch)

on toggle switches. The other changes are for the most part inconsequential.

The default parts list is for the original BJFe Honey Bee.

To read more on this process, check out our post:

Blueberry part substitutions

To build the Blueberry Bass Overdrive, make the following substitutions from the default list:

• R12: 4k7 → 2k

• R14: 47k → 27k

• R15: 31.6k → 47k

• R16: 32.6k → 47k

• C1: 47n → 22n

• C11: 4n7 → 47n

• C12: 220n → 22n

• C14: omit (4n7 in original)

• C15: 4n7 → 2n2

• D2-3: 3mm green LED → 3mm red LED

PROCYON NATURAL OVERDRIVE

Revisiting the original Honey Bee FSB trace