Prescription Electronics Yardbox

Original and very cool. Sounds amazing.

Made in USA
It's based off of the famous Sola Sound or Tonebender MK II used by countless guitarists from the 60's. It's of course a germanium based fuzz pedal.  (no box-sorry)

While a gain control usually implies addition of volume and distortion, the Yardbox gain control also adds bottom-end mass and a pleasingly blurry compression.

The knobs are volume, gain, fuzz, and treble/bass. The volume and gain are interactive. In other words, the vol can influence the gain. That's why the Yardbox is so convenient as compared to the Tone benders, which have only two knobs. The Yardbox offers a full range of sounds due to its control knobs. I think it's unrivaled because of this feature.
The sounds you can have is (roughly): all the Yardbirds, the maestro fuzz garage, kind, led zep, etc.

This Yardbox from the resurrected Prescription Electronics more than channels the menace and ferocity of the original. And while it’s not a transistor-for-transistor, knob-for-knob reproduction of a vintage Tone Bender, its enhanced control set lends the pedal a malleability that doesn’t compromise the rebellious spirit of ’66.

A Bird in Name …
While the Yardbox is most closely related to a Sola Sound MkII Tone Bender, it isn’t an exact reproduction. Then again, the Yardbirds aren’t strictly associated with the MkII. Jeff Beck used a two-transistor Tone Bender MkI for early fuzz excursions like “Heart Full of Soul.” But that pedal had more in common with the Maestro Fuzz-Tone than the three-transistor MkII. Beck, in fact, didn’t use a MkII with the Yardbirds until 1966, by which time his buddy Jimmy Page was onboard. So if you want to be a stickler, you could call this a Yardbirds MkII-inspired MkII Yardbox.