Based on the Buchla Model 242t. A wonderful piece of history, the early definition of an event generator and a master clock.

The 242t can be externally clocked using the red “clk in” jack. External pulses can also reset the end stage using the red “rst in” jack. “ALL OUT” sends out a continuous pulse train no matter what is programmed in the matrix. It is a direct output of the pulser. “MATRIX” sends out individual pulse patterns as programmed in the matrix. “ALTER” these two jacks send out alternating pulses—great for ping ponging. The gray jack sends out a continuous ramp wave generated by the pulser, great to send to open a 292t. 

The top two input jacks can receive an external pulse to either start or stop the internal clock. The “period” section controls the rate/speed of the internal clock which drives the pulse matrix. Incoming CV to the left hand attenuverter knob can increase or decrease the rate selected by the right hand oset knob. The offset rate goes from audio rate speed (.002) to 10 seconds (or much longer) per stage. 

Pulses can be programmed using the 4 x 12 matrix. The “n” row selects the number of consecutive stages for rows A, B and C. Rows A, B and C can independently programmed using the two encoder knobs. The lower left knob scrolls through the vertical rows, the lower right knob scrolls through the horizontal rows. The on/off button activates or clears the chosen pulse point and a long press clears the matrix.