Fairly simple but nicely effective tremolo kit.
A lot of trems use expensive optocouplers or require some fiddling with LED/LDR combinations to make them work, but this does all the magic with a clever combination of transistors.
Rate, Depth and Volume controls, and the LED flashes to indicate the rate. Bonus!
This latest version of the PCB is set up for vertical-mount pots to make it a really quick and easy build. The vertical mount pots have round shafts, so take that into consideration when choosing your knobs - you'll need a grub-screw fixing. You can go for 'normal' pots with splined shafts and wire them or use header pins to attach them.
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 only available with full kits, and will take a battery. Knobs are not included.
Builds are only available with full kits including enclosure and vertical-mount pots. Please choose appropriate knobs.
PCB size: 50 x 25mm
Knobs required: 3
Direct-Connect compatible (4-way)
Download the INSTRUCTION PDF
Download the older version here