Surfy SurfyTrem Deluxe Tremolo Effect PedalHailing from Sweden, Surfy Industries' analog effects seem to only grow in acclaim and popularity. Their constant innovation makes for all the more impressive effects units. Case in point, the SurfyTrem Deluxe. Building off the bias based modulation of the original SurfyTrem pedal, the Deluxe hones in the tremolo tones originally found in a number of famous '50s and '60s era American tube amps. The SurfyTrem Deluxe utilizes matched JFET transistors to