Akashic Guitar effects PCB lookup
BASSGAINTREBVOL

1590B · 4 knobs

Fuzz Dog· ChunkRot

Chunky Rotter

Based on the Paul Cochrane Fat Bastard

Category
Boost· OD/Dist/Preamp
Controls
Bass · Gain · Treb · Vol
Difficulty
Easy
Price
£28.80
Tags
od-distortion

From the vendor

The Mini Boost is a great bit of kit. Big dB with a fair old bit of grit at the top of the gain range.

So who better to squeeze more functionality out of it than the legend that is Paul Cochrane.

Tweaked values and the addition of Bass and Treble cut controls make this more than just a signal pump.

Available with through-hole J201s, or SMT units if you're handy with tiny components and want to save a few sponds.

If you want the PCB without parts there's a link for that at the bottom of the page.

Partial kit: PCB, all board-mounted components, pots.

Full kit: As above, plus footswitch and appropriate daughterboard/components for your selected bypass type (see Downloads section for details of those), jack sockets, DC socket, battery snap, hook-up wire, LED.

Enclosure (pre-drilled) is available as an option with full kits, and will not take a battery. Knobs are not included.

Builds are only available with full kits including enclosures. Please choose appropriate knobs.

Inspired by: Paul Cochrane Fat Bastard

Difficulty: Easy

PCB size: 50 x 33mm

Knobs required: 4

Enclosure: 1590B

Direct Connect compatible (4 way)

Download the INSTRUCTION PDF

Schematic

The schematic is in the vendor's build document, page 3. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 28 rows

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RefValueNormalizedTypeNotes
Resistors 11
R11M1M
R21M1M
R310K10k
R41K1k
R5150R150
R6100R100
R71M1M
R8100R100
R910K10k
R1010K10k
R111K1k
Capacitors 10
C1100n100n
C233n33n
C31u1u
C41u1u
C51u1u
C610n10n
C7100n100n
C8100u100uelec
C910u10uelec
C1010u10uelec
Diodes 1
D11N58171N5817
Transistors 2
Q1J201/MMBFJ201J201/MMBFJ201
Q2J201/MMBFJ201J201/MMBFJ201
Potentiometers 4
BASS25KBB25kPotentiometer
GAIN10KBB10kPotentiometer
TREB100KBB100kPotentiometer
VOL100KAA100kPotentiometer