Tone Bender Mk III

From the vendor

The final chapter in the classic Tone Bender series, and by far the most versatile.

Whereas previous TBs had only Volume and Fuzz controls, the MkIII adds a Treble-Bass (Tone) knob to take you from crunchy bottom-rich fuzz to all-out cat-bothering treble filth.

As healthy germanium PNP transistors are more attainable than NPN, this has the option of an onboard voltage-inverter so you can use these cans but still daisy-chain your power with standard negative-ground pedals. You can omit this and simply wire it up as positive-ground if you prefer, but you'll need a dedicated power supply. Refer to the General Build Guide for posi-gnd wiring.

There are also a few circuit variations on offer, with slight differences in specs.

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.

Inspired by: Tone Bender MkIII

Difficulty: Easy-Medium

PCB size: 50 x 34mm

Knobs required: 2

Enclosure: 1590B

Direct-Connect compatible (4-way)

Download INSTRUCTION PDF