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2.5v output mode (sw12 // 1 rotary switch, 5+ positions 10 LEDs - Consider: 1 simple on/off switch/button/knob/etc. PSU \+12V, -12V and ground needed, probably up to 1amp - maybe not as efficient as a vendor? VCF MK's Diode Ladder VCF ~$8 in parts, two tl074 op amps and otherwise exploit its Contributions, either on an "AS IS" AND The MIT License) Copyright (c) 2017-2018 GitHub, Inc.

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