1960s Dallas Rangemaster

This is a vintage 1960s Dallas Arbiter Rangemaster Treble Booster guitar pedal. This extremely coveted pedal, serial number 163710, or effects unit rather, has been famously used by Eric Clapton, Brian May, Marc Bolan, Tony Iommi, and Ritchie Blackmore, to enhance the overall gain and presence of the notoriously dark British-made amps of the ’60s. With a simple tag board circuit consisting of a single germanium Mullard (yellow jacket) OC44, a Plessey electrolytic cap, and a couple additional caps and resistors, the unbelievably elementary design is ironically the most copied vintage effect ever made, yet, not even a faithful reproduction has quite been able to capture the essence of the incomparable Rangemaster. As briefly mentioned above, this super rare variant features what some believe to be the best transistor of the various possibilities; the Mullard OC44 Yellow Jacket, which is famous for producing slightly more bite and a more pronounced overdrive.