Korg 770

PRICE: 1500€ / manual / schematics (1976)

Overview and oscillator

KEYBOARD 32 keys F1 -C3 keyboard with no velocity, one of the first analog "budget" with simple function in a very clear organisation of the functions. Of course wood sides! like many synth from this era, the 770 lacks wheels / pitchbender

Oscillator Subtractive synthesis analog mono synthesizer with 2 VCO and portamento mode:
- VCO1: octave range from 64' to 2', tuning +/- 5 semitones, shapes triangle, square, saw, pulse, pulse with variable width. Also special external mode (see filter)
- VCO2: octave range from 16' to 1, tuning +/- 5 semitones, shapes saw, Ringmodulator 1/2, Scale Noise, Pink + White Noise.

Filter, EG and LFO

FILTER The filter is analog (Traveler) allows flexible and sofisticated LPF, BPF and HPF with "BRIGHT" which is the resonance.

ENVELOPE single EG generator " AR" Attack e Singing Level, the Range is based on 3 livel presets

LFO Single delayed triangle modulator with variable depth and reaches a pretty high frequency for some FM modulation on pitch. Also can acts as a simple VCA vibrato.

korg 770 Technical Data

Specifications:

KEYBOARD: F-C 32 Keys

VCO-1: Scale (64', 32', 16', 8', 4', 2'), Waveform (triangle, square, sawtooth, pulse, PWM, External Signal), Pitch Control, Vibrato Switch (Normal/Off/Delay), Vibrato Depth, Vibrato Speed, Pitch Bend Switch (Up/Off/Down), Delay Time, Bend Speed, Portmento Switch (Fixed/Off/Control), Portamento Control

VCF x2: Traveler (High Pass, Low Pass), Bright Selector, Expand Switches x2 (LP+HP, Off/Normal/Reverse), FcM Switch

VCA + ENVELOPE GENERATOR: Attack Time, Singing Level, Range Selector, Sustain Selector, Envelope Mode Selector, Trigger Mode Selector

LFO: Speed Control (Repeat+FcM)

VCO-2: Coarse Tuning (16'-1'), Fine Tuning, Mode Selector (sawtooth, Ring 1, 2, Scale Noise, Pink Noise, White Noise)

TOTAL: Mixing Selector, Mixing Volume, Power Switch/Volume

DIMENSIONS: 560(W) x 195(H) x 340(D) mm

WEIGHT: 9 kg

ACCESSORIES: Connection Cord, Dust Cover

POWER CONSUMPTION: Voltage (Local Voltage, 50/60Hz), Wattage (15W)

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Audio demo and video

korg 770

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1200 to 1700 from 1 sellers Sellers:

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