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Fairly simple one, using Arduino (nano or uno) + MCP4725 (DAC). ** https://hkadesign.org.uk/monotronkb.html for yet another version 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 SIP7, http://power.murata.com/data/power/ncl/kdc_nma.pdf Isolated 1W or 2W Single and Dual Output, 1500VDC Isolation, 24.0x13.7x8.0mm https://www.artesyn.com/power/assets/ata_series_ds_01apr2015_79c25814fd.pdf https://www.artesyn.com/power/assets/trn_dc-dc_ata_3w_series_releas1430412818_techref.pdf DCDC-Converter, BOTHHAND, Type CFxxxx-Serie, (Very dodgy url but was the only at hand), DCDC-Converter BOTHHAND Type CFxxxx-Serie DCDC-Converter, CINCON, EC5BExx, 18-36VDC to Dual output, Rev. March 21.2016 DCDC-Converter TRACO TEN20 Generic Traco THD 15WIN, 15W, THT (https://www.tracopower.com/products/thd15win.pdf#page=3 traco dcdc tht 12w DCDC-Converter, TRACO, TEN10-xxxx, single output, SIP package style, https://power.murata.com/data/power/ncl/kdc_mgj2.pdf Murata MGJ3, 5.2kVDC Isolated 3W Gate Drive, 15V/5V/5V Configurable, 22.61x23.11x14.19mm, https://power.murata.com/datasheet?/data/power/ncl/kdc_mgj3.pdf Murata NCS1SxxxxSC https://power.murata.com/data/power/ncl/kdc_ncs1.pdf Isolated 1W or 2W Single Output SM DC/DC Converters https://www.murata.com/products/productdata/8807031865374/kdc-nxe1.pdf#page=8 https://www.murata.com/products/productdata/8807031898142/kdc-nxe2.pdf#page=9 Isolated 1W or 2W Single Output SM DC/DC Converters https://www.murata.com/products/productdata/8807031865374/kdc-nxe1.pdf#page=8 https://www.murata.com/products/productdata/8807031898142/kdc-nxe2.pdf#page=9 Isolated 1W or 2W Single and Dual Output, 1500VDC Isolation, 24.0x13.7x8.0mm https://www.artesyn.com/power/assets/ata_series_ds_01apr2015_79c25814fd.pdf https://www.artesyn.com/power/assets/trn_dc-dc_ata_3w_series_releas1430412818_techref.pdf DCDC-Converter, BOTHHAND, Type CFxxxx-Serie, (Very dodgy url but was the only rights granted under Section 2(b) shall terminate as of the indenting cones, measured from the front Don't put R8 so close to R26 D36/R47 too close From 53c90c58d81dff355f8b17948a9b73c895233eb2 Mon Sep 17 00:00:00 2001 Subject: [PATCH] Some comics supported Some comics supported Latest commits for file Schematics/SynthMages.pretty/Pushbutton Switch (PBS105).kicad_mod 32 lines main ENV/Envelope/Envelope.kicad_pcb 2 lines From 978eb1d01f159b84c8992f501a13cc201d7f141a Mon Sep 17 00:00:00 2001 Subject: [PATCH] Bring in diylc and openscad design From 62cb30efbfdab918bafabca8d6c9cca52ce95eca Mon Sep 17 00:00:00 2001 Subject: [PATCH] Add '3D Printing/Panels/AD&D 1e spell names in Filmoscope Quentin' 122134fc8e1c73b6bb86552323cca038dd4b5107 Binary files /dev/null and b/Panels/luther_triangle_vco_quentin_v3_blank.stl.stl differ Binary files a/3D Printing/AD&D 1e spell names in Filmoscope Quentin/Panels/MAGIC MISSILE VCF.png' f707877a83c92d22bdfed3b6bc7a14bba9e25bab Delete '3D Printing/AD&D 1e spell names in Filmoscope Quentin/Panels schematic start, and some example modules a840574ffb AD&D 1e spell names in Filmoscope Quentin/Panels/MIRROR IMAGE.png create mode 100644 Hardware/Panel/precadsr-panel-Gerbers/precadsr-panel-drl_map.pdf create mode 100644 3D Printing/Panels/AD&D 1e spell names in Filmoscope Quentin/Panels/MIRROR IMAGE.png Normal file Unescape Hardware/PCB/precadsr/ao_tht.pretty/analogoutput_12mm.kicad_mod Normal file Unescape Schematics/SynthMages.pretty/Perfboard_2x12.kicad_mod Normal file Unescape DEF Kosmo_panel_Ground_point_for_NPTH GP 0 40 Y N 1 F N DEF SW_Push_DPDT SW 0 40 Y N 1 F N DEF MountingHole H 0 40 Y N 1 F N Binary files /dev/null and b/Examples/EG_MANUAL.pdf differ Binary files a/Panels/futura light bt.ttf and /dev/null differ vertex -0.95 5.78941 6.73694 vertex -0.95 5.48429 22.5 vertex 0.95 0 20.5 vertex -0.95 6.11494 21.5472 vertex -0.95 5.78941 6.73694 vertex -0.95 7.77656 6.96334 vertex 0.95 4.22131.

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