Akashic Guitar effects PCB lookup
BASSGAINTREBVOL

1590B · 4 knobs

Fuzz Dog· Acti-Boost

Acti-Boost - Type A and Type R

Based on the AC Boost / RC Boost

Category
Boost
Controls
Bass · Gain · Treb · Vol
Difficulty
Medium
Price
£31.20
Tags
od-distortion

From the vendor

A nice pair of boosts/tone shapers, both of which can be made using the same PCB (though only one at a time - come on!).

Both versions utilise Baxandall active EQ circuitry to keep your tone perky, offering +/- 15db on bass and treble.

So, what's the difference?

• Type A offers a bit of grit with your boost, pushing into overdrive at the top of the turn.

• Type R is clean, clean, clean right up to the top end of the range, where a bit of dirt starts to creep in.

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 battery. Knobs are not included.

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

Inspired by: AC Boost / RC Boost

Difficulty: Medium

PCB size: 50 x 50mm

Knobs required: 4

Enclosure: 1590B

Direct-Connect compatible (4-way)

Download 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 45 rows

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RefValueNormalizedTypeNotes
Resistors 19
R11M1M
R210K10k
R31M1M
R410K10k
R510K10k
R6100R100
R747K47k
R81K1k
R94K74.7k
R1033K33k
R114K74.7k
R1210K10k
R13470K470k
R1410K10k
R15470R470
R16100K100k
R1715K15k
R186K86.8k
R1922K22k
Capacitors 13
C122n22n
C247n47n
C3150p150p
C433n33n
C533n33n
C64n74.7n
C71u1u
C84n74.7n
C9100n100n
C10100n100n
C1110u10uelec
C12100u100uelec
C1310u10uelec
Diodes 6
D11N41481N4148
D21N41481N4148
D51N41481N4148
D61N41481N4148
D71N58171N5817
D81N41481N4148
Transistors 2
Q12N50882N5088
Q22N50882N5088
ICs 1
IC145584558
Potentiometers 4
BASS50KBB50kPotentiometer
GAIN1MBB1MPotentiometer
TREB50KBB50kPotentiometer
VOL100KBB100kPotentiometer