Its designer [acidbourbon] remarks that the circuit bears a striking resemblance to a ring modulator,so has taken it down that path by producing a 74HC based ring modulator guitar pedal.

Workers boarded up the District’s downtown businesses and fenced off the vice president’s residence Sunday as the city prepared for potential vandalism in the wake of this week’s ...

Modulators were used throughout Britain from the mid-19th century onwards, primarily to help teach singing to children.The Englishman, the Reverend John Curwen (1816-1880), adapted his tonic sol ...