Mm spacing KK254 Molex header2 pin Molex connector 2.54 mm spacingPin header 2.54 mm spacing | | J2 | 1 | B10k | Potentiometer | | | | C4, C5 | 3 | A1M | Potentiometer | | Screws and spacers (see [build notes](build.md | | | | | 1 | 100k | Resistor | | Tayda | A-553 | | Tayda | A-1157 or A-2425 | | | R114 | 1 | ICM7555xP | CMOS General Purpose Timer, 555 compatible, PDIP-8 0.2A Ic, 40V Vce, Small Signal NPN Transistor, TO-92"/> Low-Power, Quad-Operational Amplifiers, DIP-14/SOIC-14/SSOP-14Low-Power, Quad-Operational Amplifiers, DIP-14/SOIC-14/SSOP-14Operational amplifier, DIP-8Switch, triple pole double throw, center OFF position K switch normally-open pushbutton push-button D Push button switch, push-to-open, generic, two pins Switch, single pole double throw K switch single-pole double-throw spdt ON-ON horizontal MEC 5G single pole double throw, separate symbols K switch normally-open pushbutton push-button D Push button switch, generic, two pins Switch, single pole double throw K switch dual-pole double-throw DPDT 3pdt ON-ON D Double Pole Single Throw (SPST) switch, small symbol D 2x DIP Switch, Single Pole Single Throw (SPST) switch, small symbol D Switch, single pole normally-open tactile switch SPST LED OFF-ON lamp D Single Pole Single Throw (SPST) switch, small symbol D Switch, single pole normally-open tactile switch Wurth Wuerth Ultraminiature Surface Mount Single Row 2.54mm (0.1 inch) Pitch PCB Connector, M20-89011xx, 11 Pins per row, Mounting: Snap-in Plastic Peg PCB Lock (http://www.molex.com/pdm_docs/sd/039300020_sd.pdf), generated with kicad-footprint-generator Molex Mini-Fit Sr. Power Connectors, 105314-xx12, 6 Pins per row (http://suddendocs.samtec.com/prints/hle-1xx-02-xxx-dv-xx-xx-xx-mkt.pdf, http://suddendocs.samtec.com/prints/hle-dv-footprint.pdf), generated with kicad-footprint-generator Fuse SMD 1812 (4532 Metric), square (rectangular) end terminal, IPC_7351 nominal with elongated pad for handsoldering. (Body size source: https://www.nikhef.nl/pub/departments/mt/projects/detectorR_D/dtddice/ERJ2G.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py DFN, 6 Pin (http://www.nve.com/Downloads/ab3.pdf), generated with kicad-footprint-generator Connector Phoenix Contact connector footprint for: MCV_1,5/14-GF-3.81; number of pins: 12; pin pitch: 3.50mm; Angled; threaded flange || order number: 1843295 8A 160V Generic Phoenix Contact connector footprint for: MSTB_2,5/7-GF; number.