Sequential Oberheim TEO-5 Synthesizer Keyboard

Oberheim TEO-5, 5-Voice Polyphonic Analogue Synthesizer, Semi-weighted Fatar keyboard with 3.5 octaves, 44 keys with channel (mono) aftertouch with bipolar amount, VCO/VCF based, 2 x VCO and sub-oscillator per voice, Selectable waveforms for each oscillator: triangle, sawtooth, variable pulse, Oscillator 1 syncs with Oscillator 2, Classic SEM filter with selectable band-pass mode, Bi-polar filter envelope value, Velocity modulation of the envelope, State control changes continuously from low-pass to notch to high-pass, Five-stage (DADSR) envelope generator, 5 Waveforms: Triangle, sawtooth, inverted sawtooth, square and random (sample and hold), LFO tempo synchronisation, Initial Amount setting, Freely assignable mod targets, Arpeggiator, Step sequencer with 64 steps, 2x 24-bit / 48 kHz digital effects (reverb, delay, chorus, flanger and more), 256 User and 256 factory presets in 32 banks of 16 programs each, Pitch and mod wheel, Dedicated X-Mod control on the front panel, Display, Inte