Droid Fuzz Arpeggiator

From the vendor

Sometimes silly is nice. This is very silly (now stop that....). A weird 8-bit type fuzz with optional arpeggiation thanks to the old school HT8950 modulation chip.

Four modes:

• Just Fuzz

• Octave Up

• Octave Down

• Arpeggiation

The 'Control' knob adjusts this and that. Fully clockwise you get what the modes say on the tin. Wind it back a bit and that octave-up gets lower and lower. Octave-down gets lower and lower. Arpeggiation goes all over Texas. Don't expect much in the way of touch-sensitivity and transparency. This thing is straight up crazy.

We've added the option of having the internal gain trimmer as an external pot. It makes the whole thing much more versatile - go for it.

Supplied with a separate daughterboard for the rotary switch so it lines up nicely with the pots.

Note: The switch daughterboard was designed based on an older trace of the circuit and will not accurately reproduce the four modes. The rotary switch needs to be wired, but it's very straight forward. Please check the build doc for details.

The kit is supplied with vertical-mount pots which have round shafts, so you'll need set-screw fitting knobs. The rotary switch may need to be cut to length.

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: Robot

Difficulty: Medium

PCB size: 50 x 54mm / 32 x 27mm

Knobs required: 3 / 4

Enclosure: 1590B

Direct-Connect compatible (4-way)

Download INSTRUCTION PDF