RunOffGroove's stupendously good take on getting the tones of an Ampeg SB-12 Portaflex.
Designed for you bass heads, but works equally well with guitar if you want that meaty grunt.
There are a couple of trimmers to tweak to get it biased to perfection, so a multimeter is going to be useful. You can do it by ear of course, but it's nice to see the numbers.
Designed for vertical-pin, board mounted pots for a neat, simple build and secure enclosure mounting. These have round shafts, so take that into consideration when ordering knobs - you'll need set-screw fitting. Wiring up 'normal' pots with splined shafts is an option if you really want the hassle.
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 not take a battery. Knobs are not included.
Builds are only available with full kits including enclosures. Please choose appropriate knobs.
PCB size: 50 x 43mm
Knobs required: 4
Direct Connect compatible (4 way)
Download the INSTRUCTION PDF