Twin Peaks Tremolo

TAPFLO Pedal Analog signal-digital control

The Twin Peaks is a tap tempo tremolo with 4 modes:

Classic ( like Black Face tremolo ,regular volume modulation)
Harmonic (like the Harmonic Vibrato in old Fender Brown Face amps, pans between treble and bass)
Bass Only (Bass modulation only, with fixed treble)
Treble Only (Treble modulation only, with fix bass)

The LFO has 8 available modulation shapes:
Sawtooth, Reversed Sawtooth, Square, Triangle, Sine, Lump, Reverse Lump, Random

Controls:
Rate, Division, Tone, Depth, Shape, Shape distortion

While the Tap tempo LFO section is digital, the audio path is 100% analog. The tremolo effect is achieved using optocouplers.

http://www.davidrolo.com/effects/twin-peaks-tap-tremolo/