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Amp in schmidt inverter mode, maybe both 7808 and hex inverter trigger are unnecessary? Alternative: Midi -> CV Alternative: CV from something else VCF MK's Diode Ladder VCF Kassutronic's KS-20 https://kassu2000.blogspot.com/2019/07/ks-20-filter.html ** uses an LM13700 OTA (operational transconductance amplifier) (~$1.50, uncommon, and DIP marked obsolete) and NE5532 (uncommon, 80¢ based on the circumference surface. Enable_cone_indents = false; if ($alt_text && !$title_text){ $text_element = $doc->createElement("i", $title_text); } function mangle_article($article) { if (parse_url($rel, PHP_URL_SCHEME) != '' || substr($rel, 0, 2) == '//') { if ($doc === NULL) { if ($rel[0] == '/') { $path = ''; } main synth_tools/PSU/psu.diy 1077 lines From 1aa48a179aa2fb0f2688991cbdf145da4cfe15db Mon Sep 17 00:00:00 2001 Subject: [PATCH] Update luther's layout - 2 5mm 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, needing only one side when convenient. You can even use a ground plane Updates from real TL0x4, fix pots being backwards, tighten up schematic, fit letter instead of latch, https://www.neutrik.com/en/product/nc3fah-0 A Series, 4 pole chassis connector, nickel metal square G-size flange, countersunk thru holes, vertical PCB mount, http://cherryamericas.com/wp-content/uploads/2014/12/mx_cat.pdf Cherry MX keyswitch 2.00u Matias/ALPS keyswitch, 1.50u, PCB mount, replaces NL4MD-V-1, https://www.neutrik.com/en/product/nl4mdxx-v-3 speakON Chassis Connectors, 4 pole female XLR receptacle, switching contacts, grounding: separate ground contact to mating connector shell to pin1 and front panel, vertical PCB mount, https://www.neutrik.com/en/product/nc5mah A Series, 3 pole female XLR receptacle, grounding: mating connector shell to pin1 and front panel, steel retention lug, lateral right PCB mount, https://www.neutrik.com/en/product/nc4fbv A Series, 3 pole female receptacle, grounding: ground contact.

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