Akashic Guitar effects PCB lookup
BRICHARGAINMIDTONEVOL

1590B · 6 knobs

Fuzz Dog· littleboy

Little Boy Blues Drive

Based on the Blue Boy Deluxe Overdrive

Category
Overdrive· OD/Dist/Preamp
Controls
Bri · Char · Gain · Mid · Tone · Vol
Difficulty
Medium
Price
£42.00
Tags
od-distortion

From the vendor

Of course the world always needs another Tube Screamer based drive, right? Actually yes - it's a great starting platform and ripe for modding.

This fella is a TS tone tweaker's delight. More gain on tap but just as clean as a TS with it wound back. Shape that grunt with four separate frequency controls - Tone, Mids, Character and Brightness. Almost endless combinations available to match up with any amp.

All in all this is a beautiful box of blues lead tone, and it all fits nicely into a 1590B despite all the controls.

The kit is supplied with vertical-mount pots which have round shafts, so you'll need set-screw fitting knobs.

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 batteryKnobs are not included. Pot spacing is tight at 17.5mm so take that into account when selecting suitable knobs.

Builds are only available with full kits including enclosure and vertical-mount pots. Please choose appropriate knobs.

Inspired by: Blue Boy Deluxe Overdrive

Difficulty: Medium

PCB size: 50 x 36mm

Knobs required: 6

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 38 rows

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RefValueNormalizedTypeNotes
Resistors 12
R11K1k
R21M1M
R3150R150
R422K22k
R5220K220k
R61M1M
R71M1M
R8470R470
R9100K100k
R1022K22k
R1122K22k
R122K22.2k
Capacitors 14
C122n22n
C21n1n
C3220p220p
C422n22n
C522n22n
C6220p220p
C74p74.7p
C822n22n
C91u51.5uelec
C101u1uelec
C111u1uelec
C12100u100uelec
C13100u100uelec
C14100u100uelec
Diodes 5
D11N41481N4148
D21N41481N4148
D31N41481N4148
D41N41481N4148
D51N40011N4001
ICs 1
IC145584558
Potentiometers 6
BRI10KCC10kPotentiometer
CHAR1KCC1kPotentiometer
GAIN100KAA100kPotentiometer
MID25KAA25kPotentiometer
TONE100KBB100kPotentiometer
VOL100KAA100kPotentiometer