The 251e features four 50-stage sequencers, each with programmable pulse and control voltage outputs. A separate editing section is used for setting parameters in the selected sequence; sequences can be edited while running and follow the edit stage when stopped.
Intervals may be entered for each stage, with variable note values from a 1/32-note to whole notes. Triplets and dotted notes are readily accommodated. Pulse durations may be set to fractions of the intervals.
Output voltages range from 0.0 to 9.9 volts, conveniently accommodating oscillators with a sensitivity of .1 volts per semi-tone.
Tempo range from 10bpm to 250bpm is supported.
Additional features include:
Variable start delay
Multiple nested loops
Master voltage-controlled clock
With the 206e or 225e Preset Manager, the parameters of the 251e can be stored and retrieved as part of a preset. A 200e USB card is necessary to download new firmware for this module.
Other modules by Buchla | 206e Mixer / Preset Manager | 207e Mixer / Microphone Preamplifier | 210e Control and Signal Router | 223e Multi-Dimensional Kinesthetic Input / Tactile Input Port | 225e MIDI Decoder / Preset Manager | 227e System Interface | 230e Triple Envelope Tracker / Preamplifier | 250e Arbitrary Function Generator | 252e Buchla Polyphonic Rythm Generator | 256e Quad Control Voltage Processor | 266e Source of Uncertainty | 257e Control Voltage Processor | 267e Uncertainty Source / Dual Filter | 261e Complex Waveform Generator | 259e Twisted Waveform Generator | 272e Polyphonic Tuner | 266e Source of Uncertainty | 281e Quad Function Generator | 285e Frequency Shifter / Balanced Modulator | 291e Triple Morphing Filter | 292e Quad Dynamics Manager | 296e Spectral Processor | 297 Infinite Phase Shifter