FuzzHugger FX Algal Bloom

Here's another cool fuzz from FuzzHugger for Fuzz Friday. The Algal Bloom is transistor based with a wide range of tones, from mild overdrive to full on fuzz. It has the Gain and Level controls you'd expect, along with a Bloom control (expands the fuzz tone), Clean (blend), and Power (voltage sag), along with 2 toggle switches for more things to tweak. Originals have the Clean control internally, but who doesn't love more controls? It's laid out with board mounted pots to fit in a 125B enclosure with top mounted jacks.

FuzzHugger FX Doom Bloom

Fuzz Friday! Do you want a fuzz with a bunch of knobs, versatile tones, and works on guitar and bass? Good. Here's the Doom Bloom from FuzzHugger. Think of it as an Electra distortion pushing a Bazz Fuss with a handful on pots thrown in for a bunch of tweak-ability. It'll be a tight squeeze in a 1590B, but it should fit.

FuzzHugger FX Phantom Octave

The Phantom Octave is an octave/ring mod type fuzz that's very interactive with guitar pickup selection and volume/tone controls. The LED pads are for the one that's under the knob in the video below. You could use it as the on/off indicator, but it might be hard to tell if it's on when signal isn't passing through it. Should be able to squeeze it in a 1590A. From the manufacturer:

Equal parts mysterious and ghastly, the Phantom Octave is a shape-shifting octave fuzz 
monster! No controls? They're not necessary--they're at your fingertips! The Phantom Octave is 
extremely interactive with your pickup selection, picking intensity, and your guitar's Tone 
control. Like its namesake, the octave will disappear with picking intensity and by rolling back 
your guitar's Tone control. Octave effect is strongest with low-output single coil pickups.