Akashic Guitar effects circuit lookup
ONSETVOL

1590B · 2 knobs

Fuzz Dog· nastyshock

Nasty Shock

Based on the Fairfield Circuitry Unpleasant Surprise· 2 other boards clone it

Category
Fuzz
Controls
Onset · Vol
Difficulty
Medium
Price
£36.00
Tags
fuzz

From the vendor

If you're a fan of signal smashing there's nothing unpleasant about this one...

Capable of some fairly 'normal' compressed fuzz tones, but it really starts to shine when you mash things up a bit. Crank up the Onset knob and flip those Gain, Crush and Treble switches to see how messed up you like it. You may be surprised.

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.

Inspired by: Unpleasant Surprise

Difficulty: Medium

PCB size: 50 x 46mm

Knobs required: 2

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 41 rows

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Got parts in a drawer? See what you can build with them.

RefValueNormalizedTypeNotes
Resistors 23
R12M22.2M
R233K33k
R32M22.2M
R41K1k
R6680R680
R733K33k
R810K10k
R9100K100k
R1068K68k
R11270K270k
R12100K100k
R13680R680
R1410M10M
R1510M10M
R1610M10M
R17150K150k
R1868K68k
R191M1M
R201M1M
R2110K10k
R221K1k
R231M1M
R24100R100
Capacitors 10
C12n22.2n
C2100p100p
C347n47n
C447n47n
C547n47n
C62n22.2n
C747n47n
C81u1u
C9100n100n
C10100u100uElectrolytic capacitor
Diodes 4
D11N58171N5817
D21N41481N4148
D31N41481N4148
D45V1 Zener5V1
Transistors 1
Q32N39042N3904
ICs 1
IC1TL072TL072
Potentiometers 2
ONSET100KAA100kPotentiometer
VOL100KAA100kPotentiometer

Other boards based on the Fairfield Circuitry Unpleasant Surprise