The Catalinbread Semaphore Tremolo is a legendary, highly coveted modulation box engineered for tone purists who demand maximum flexibility without compromising their core signal. Built around an all-analog signal path using optically controlled JFET gain stages, the Semaphore avoids the harsh, sterile digital artifacts found in lesser circuits. The result is a pristine, lively, and completely tone-transparent sweep that ranges from smooth, vintage "harmonic-style" amp pulses to razor-sharp, modern stutter-chops. This pedal is in good condition