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Summary of Contents for Expert Sleepers otterley
- Page 1 User Manual Revision 1.0...
- Page 2 Expert Sleepers Ltd. Expert Sleepers Ltd assumes no responsibility or liability for any errors or inaccuracies that may appear in this document.
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Page 3: Table Of Contents
Table of Contents Introduction..................................4 Installation...................................4 Power requirements..............................5 Inputs and outputs................................5 Controls....................................5 Speed and Spread................................6 Reset......................................6 Jumper....................................7 Calibration...................................8 Where to get help................................9 Acknowledgments................................9... -
Page 4: Introduction
Introduction Congratulations on your purchase of an Expert Sleepers “Otterley”. Please read this user manual before operating your new module. Otterley is a multi-LFO module, designed to offer extensive modulation possibilities, with a good amount of control and flexibility, while remaining nicely compact. -
Page 5: Power Requirements
It does not use the 5V rail. Inputs and outputs Otterley's input and output jack sockets are illuminated, lighting red for positive voltage and blue for negative voltage. (Audio-rate signals appear purple, since you see a rapid alternation of positive and negative.) -
Page 6: Speed And Spread
Speed and Spread The Speed and Spread knobs (and their corresponding CVs) jointly control the speeds of LFOs 1-4. Speed is easy to understand – it simply makes all four LFOs faster or slower. Spread controls the difference in speed between the four LFOs. With the knob fully counter-clockwise, and the CV at 0V (or unconnected), all four LFOs run at the same speed . -
Page 7: Jumper
Jumper There is one jumper on the upper PCB, labelled JP1. This controls the exact behaviour of the Square LFO shape when the Reset input is used. If the jumper is in the position as pictured above (which is the position as fitted in the factory), the Square output is held low while the Reset is high: With the jumper on the other pair of pins, the Square output is held high while the Reset is high, and goes low one half cycle after the Reset goes low:... -
Page 8: Calibration
Calibration Each LFO has trim pots to adjust the shape and amplitude of its sine output . These are factory- adjusted to give a “nice” sine shape, and a 5V amplitude, but there is enough range in the trim ± pots to deliver amplitudes from about 3V ( 5V) to 20V ( V). -
Page 9: Where To Get Help
Where to get help Email, forum, and social media links can be found at the bottom of every page on our website Acknowledgments Black and white photography by Israel Denadai 4 https://www.expert-sleepers.co.uk 5 http://israeldenadai.com.br/bw...
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