Akashic Guitar effects circuit lookup
BIASVOL

1590B · 2 knobs

Fuzz Dog· SolFace

Solar Face Fuzz

Based on the Analogman Sunface· 5 other boards clone it

Category
Fuzz
Controls
Bias · Vol
Difficulty
Easy
Price
£45.60
Tags
fuzz

From the vendor

Who doesn't love a Fuzz Face? Well, weirdos maybe. Who wouldn't like to tweak their Fuzz Face bias on the fly? Again....

All the lovely fuzzy goodness of the FF but with an external bias control. Twiddle it to compensate for temperature variations which mess with your germaniums, or just to change the flavour of fuzz to your liking.

Kits available will change depending on what we have in stock. Currently they are:

• Newmarket CV7007 (OC77) (PNP Germanium)

• Russian + whatever we have in stock (PNP Germanium)

• BC108 (NPN Silicon)

• No cans please - I have some sweet action of my own.

The PNP versions can be wired positive-ground and used with an isolated power supply, or go for the optional on-board voltage inverter to daisy-chain power with your standard pedals.

The cheaper silicon option gives a slightly harder fuzz - think along the lines of Dark Side of the Moon solos. - a classic sound in its own right. We've included spots for a couple of smoothing caps for the silicon version to avoid any squealing at higher gain settings.

Please make sure you select the right combination of options, i.e. don't order the NPN Silicon along with the Power Inverter parts - it opens up a world of email pain!

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 can take a battery if desired with footswitch positioned 22mm higher, closer to the controls. Knobs are not included.

Inspired by: SunFace

Difficulty: Easy

PCB size: 50 x 28mm

Knobs required: 3

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 13 rows

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

Variant
RefValueNormalizedTypeNotes
Resistors 3
R1100K100k
R233K33k
R3470R470
Capacitors 5
C11u1uElectrolytic capacitor
C210n10n
C322u22uElectrolytic capacitor
C610u10uElectrolytic capacitor
C810u10uElectrolytic capacitor
Diodes 2
D11N41481N4148
D21N4001*1N4001
ICs 1
IC1TL7660SEPATL7660SEPA
Potentiometers 2
BIAS5KBB5kPotentiometer
VOL250KAA250kPotentiometer

Other boards based on the Analogman Sunface