The Dengenerator is a PT2399 delay pedal designed with envelope-driven modulation in mind. The delay circuit itself is straightforward, with controls for Delay, Repeat, Mix, and Tone. The Delay control ranges from 50ms to 600ms, while the Repeat control allows for self-oscillation. The Mix control adjusts the volume of the delayed signal, and the Tone control can be adjusted to roll off treble or provide full brightness.

The real fun of the Dengenerator lies in its modulation feature. A “sound to light” circuit using an LM386N-3 chip and an LED is employed to modulate the delay based on picking dynamics. The brightness of the LED controls a light-dependent resistor, which is parallel to the “stopper resistor” of the delay control. This modulation is subtle and controlled, but can create pitch bending effects when the Bloom control is turned up.

To prevent self-oscillation from getting out of control, the Dengenerator includes two clipping diodes in the repeat path. This not only clamps self-oscillation but also adds a “tape saturation” effect at high repeat settings.

Overall, the PT2399 delay in the Dengenerator is described as sweet-sounding and capable of blending well with other instruments or band volumes. The modulation feature adds an extra layer of versatility and expressiveness to the pedal. There is also a trimmer control called FDBK, which sets the upper limit of delay repeats and can be adjusted to taste.

Summary created by AI from the original source.