In this video we're checking out a SUPER RARE Original Hornby-Skewes Treble Booster from the late 1960s or early 1970s. This is the pedal that Ritchie Blackmore used on the classic Deep Purple albums of the early 1970s. Ragnar Christensson and I are demonstrating it with a 1973 Fender Stratocaster (76 Pickus) through a 1963 Vox AC30 (Normal Channel) and a 1971 1960B cab.