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Plankton Electronics
"Based on a pair of PT2399 chips The Jellyfish is a double delay with modulation options capable of a wide variety of sounds. Analog passive filters, CV inputs, two LFOs, infinite feedback switch, xdelay function, “dry” and “wet” controls, pseudo-stereo (1 in-2 outs) or mono mixed sound makes this delay machine a versatile tool for your live set or your studio. From simple delay lines to crazy modulated stereo sounds.
SPECIFICATIONS:
Front Panel Controls:
VELO: Frequency of the LFO. It can go from 0,33 to 3,12 Hz and modulates the time parameter of the delay.
DEPTH: Quantity of modulation applied to the time parameter. It goes from 0 or no modulation to full wave modulation. It works on the LFOs and the CV inputs.
WAVE: This switch changes between square or triangle waves of the LFO. These are not exact square and triangle waves. It have some imperfections giving its own character to the machine. Square and triangle waves have different amplitudes also.
TIME: The main function of the delay. It controls the delay time and varies from 27 to 570msg. With this times the PT2399 are going through its capabilities. So on longer times you will notice some noise and distortion of the sound.
FINE: This pot also controls the delay time but only a 10% of the main pot do. It is very useful when you want to be very precise or when using the two delay lines at once, providing nice surf stereo expanding sound.
FEEDBACK: It sends the output of the delay again to its input causing repetition. It varies from 0 (one delay) to infinite. To more repetitions, more distortion and filtering are added to the sound.
INFINTE: When this switch is activated and the feedback pot set at its maximum position the repetion never stops. This makes that the level increases at every step.
DRY & WET: Mix input and effect signals to the output. Note that this pots are not are the same level when clockwise. The effect level amplifies the signal while the DRY have a gain of 1. If you want a gain of 1 on the effect turn the pot at 3 o’clock.
XDELAY: When activated this switch sends the output of the delay line 1 to the input of the delay line 2 and viceversa. This tool is used for create interesting double delay lines. It’s necessary to turn on the feedback pot of the secundary delay line to activate this feature. The feedback pot acts as a level of the 2nd delay.
PARALLEL: When it’s off this switch sends the delay line 1 to out 1 and the delay line 2 to out 2. When it’s on sends the 2 delay lines to the output 1.
BYPASS: Turns on and off the effect. When off the input goes directly to outs 1 and 2 through a buffer.
Rear Panel Controls:
CV INPUTS: this inputs modulates the time parameter of the delay. When plugged it deactivates the LFO. It accept positive DC signals. Too loud line signal can distort the chip input.
OUT 1: Output signal of the delay line 1.
OUT2: Output signal of the delay line 2.
IN: Input signal. It accepts line, synth and instrument levels.
DC 9V: Accepts 9V DC center negative. The machines consumes 60mA, use a power supply with 100-200mA.
General Specs:
CASE: Aluminum black painted.
DIMENSIONS: 188x120x33 mm
WEIGHT: 687 gr."
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