Seymour Duncan 11900-002 Vapor Trail Analog Delay Pedal w/ 3 Cables Type of Circuitry: Analog Bucket Brigade Devices (BBDs) supported by modern low-noise analog electronics. No microprocessors or digital signal processors. Delay Range: 15ms to 600ms. Actual delay time indicated by flash rate of illuminated delay time knob. Bypass: True bypass Dry Gain: 1dB fixed Wet Gain: Adjustable from muted to +3dB. At the highest blend settings, the first echo is actually louder than the dry signal.