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Http://www.abracon.com/Oscillators/ASEseries.pdf, 3.2x2.5mm^2 package SMD Crystal MicroCrystal CC7V-T1A/CM7V-T1A series https://www.microcrystal.com/fileadmin/Media/Products/32kHz/Datasheet/CC7V-T1A.pdf, 3.2x1.5mm^2 package SMD Crystal Oscillator Seiko Epson MC-146 https://support.epson.biz/td/api/doc_check.php?dl=brief_MC-156_en.pdf, hand-soldering, 7.1x2.5mm^2 package SMD Crystal Seiko Epson SG-8002JA https://support.epson.biz/td/api/doc_check.php?mode=dl&lang=en&Parts=SG-8002DC, 14.0x8.7mm^2 package SMD Crystal Oscillator IDT https://www.idt.com/document/dst/xu-family-datasheet#page=15, 5.0x3.2mm SMD Crystal Oscillator IDT https://www.idt.com/document/dst/xu-family-datasheet#page=17, 7.0x5.0mm IQD Crystal Clock Oscillator TG2520 series SMD SMT HCMOS Miniature Crystal Clock Oscillator Abracon ASV series, http://www.abracon.com/Oscillators/ASV.pdf, hand-soldering, 7.0x5.1mm^2 package FN Series Crystal Clock Oscillator Abracon ASE series, http://www.abracon.com/Oscillators/ASEseries.pdf, 3.2x2.5mm^2 package SMD Crystal MicroCrystal CC7V-T1A/CM7V-T1A series https://www.microcrystal.com/fileadmin/Media/Products/32kHz/Datasheet/CC7V-T1A.pdf, 3.2x1.5mm^2 package SMD Crystal Oscillator Seiko Epson SG-8002LB https://support.epson.biz/td/api/doc_check.php?mode=dl&lang=en&Parts=SG-8002DC, hand-soldering, 10.5x5.0mm^2 package SMD Crystal TXC 7M http://www.txccrystal.com/images/pdf/7m-accuracy.pdf, 3.2x2.5mm^2 package crystal Epson Toyocom FA-128 (https://support.epson.biz/td/api/doc_check.php?dl=brief_FA-128&lang=en), 2x1.6mm^2 package Diode MicroSMP (DO-219AD), large-pad anode, https://www.vishay.com/docs/89457/msmp6a.pdf Infineon SG-WLL-2-3, 0.58x0.28x0.15mm, https://www.infineon.com/dgdl/Infineon-SG-WLL-2-3_SPO_PDF-Package-v02_00-EN.pdf?fileId=5546d46271bf4f9201723159ce71239d SOD962-2 silicon, leadless ultra small package; 2 terminals; 0.4 mm pitch; 0.6 mm x 20 mm, Slotted Cap, horizontal, 500 VAC 4W/16A (VDE), 600V 30A (UL/CSA), order numbers: 0031.2510 (0031.2500 + 0031.2321), http://www.schurter.ch/bundles/snceschurter/epim/_ProdPool_/newDS/en/typ_FUP.pdf Fuseholder 6.3x32mm horizontal closed Fuseholder horizontal open 5x20 Stelvio-Kontek PTF/78 Fuseholder horizontal open 5x20 Schurter 0031.8201 Fuseholder 5x20mm closed horizontal Bulgin FX0457 Sicherungshalter PCB fuse holders for 5 times 1.5 mm² wires, basic insulation, conductor diameter 0.48mm, outer diameter 3.6mm, size source Multi-Contact FLEXI-xV 1.5 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator ipc_noLead_generator.py Quectel BG96 Cellular GSM 2G Module L-band satellite communication module, https://docs.astrocast.com/dl/0532-DOC-M2M-ASTRO-Astronode_S-Datasheet.pdf RF module Astrocast radio Astronode 2.4 GHz Wi-Fi and Bluetooth module Single 2.4 GHz Bluetooth ble zigbee 802.15.4 flash crypto ATSAMR21G18 AT45DB041E TECC508A U.Fi Class 4 Bluetooth Module with on-board components PCB initial layout, no traces One SPST switch to adjust CV output range, switch between 5v and 2.5v max (or whatever is configured). - Momentary-normal-off pushbutton to manually reset. LEDs: One per step.

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