EDP GNAT

via this auction

"Specifications are as follows:

KEYBOARD - TUNE : approx one and a half semitones up or down (preset to A=440Hz). GLIDE : rate adjustable up to 4 seconds for 2 octave sweep.

OSCILLATOR - Footage: 5 octave steps 32' to 2'. Waveform: Sawtooth, Square, Enhance (Pulse width mod)

CONTROL OSCILLATOR - Range: approx 0.5Hz to 500Hz (continuous). Waveforms: Sine, Sawtooth (ramp up), Sawtooth (ramp down), Square, Random.

NOISE: Digitally generated Pseudo-random noise.

FILTER - Type: 12dB/octave low pass with bass enhancement. Cut-off frequency 3 to 16KHz (continuous). Proportional keyboard control. Q Factor: variable (continuous) from flat to verge of oscillation.

FILTER CONTOUR - AD type envelope, fully variable from ramp up, through spike, to ramp down.

VCA Envelope Generator - AR type. Attack time 3ms to 4 seconds. Release time 3ms to 12 seconds.

Built-in Speaker.

Sockets comprise a quarter-inch line out jack, a bi-directional 'LINK' connector in the form of a 7-pin DIN socket for interfacing to other Gnats, Wasps, the caterpillar controller keyboard or the Spider sequencer. The unit can be interfaced to MIDI via its LINK connector and a suitable converter such as those available from www.kenton.co.uk.

9V dc power is applied through a 3.5mm jack or the unit can operate off 6 x 1.5V 'C' batteries for portable use"