| https://military-fasteners.com/ | Screws, bolts, fasteners |
|---|---|
| https://kicad-pcb.org/ | Open Source Printed Circuit Board (PCB) software |
| http://parts-express.com | Misc. Electronic Parts |
| https://jlcpcb.com/ | PCB Manufacturer, China |
| http://pcbnow.com | PCB Manufacturer |
| http://foamorder.com | Cushions, Foam Rubber cut to size |
| http://www.arrow.com | Electronic Parts, etc. |
| http://www.jameco.com | Electronic Parts, etc. |