Yamaha CS-30 drum-machines The TR-707 is a great

The TR-707 is a great source for cheap 909 samples

Each module performs a specific signal-generating or -modifying function

twin on-board effects processors

One of the rarest pieces of equipment from EMS

is probably the first commercially available digital sequencer

Yamaha CS-30 drum-machines The TR-707 is a greatThe CS 30 is a large, knob infested, black analog synthesizer with traditional features. It is a monophonic synth with extensive analog control and shaping. It has two oscillators with separate outputs, two voltage controlled resonant filters, two voltage controlled amplifiers and three envelopes. It also features a ring modulator, external audio triggering and a simple but useful 8 step sequencer for use as a sketch pad, pattern or arpeggio effect.