Learn Electronics

Basic Electronics
http://www.instructables.com/id/Basic-Electronics/?ALLSTEPS

Intro to Transformers
http://www.instructables.com/id/Intro-To-Transformers/?ALLSTEPS

From Resistors to ICs Color Codes
http://www.instructables.com/id/From-Resistors-to-ICs-Color-Codes/?ALLSTEPS

Book: "Make: Electronics"
http://www.makershed.com/products/make-electronics-book

Breadboard, Perfboard
https://www.youtube.com/watch?v=CNgaeuoFpDo

Connector Basics
https://learn.sparkfun.com/tutorials/connector-basics

Custom Cables & Guide to Crimping Dupont PCB Interconnect Cables
https://www.youtube.com/watch?v=GkbOJSvhCgU

PCB Basics
https://learn.sparkfun.com/tutorials/pcb-basics

Creating Printed Circuit Boards(PCB) Using Toner Transfer Method
http://www.instructables.com/id/Homemade-double-layer-PCB-with-toner-transfer-meth

Stepper Motor Wiring
http://www.piclist.com/techref/io/stepper/wires.htm

Hard Drive Motors
http://forums.parallax.com/discussion/119874/hard-drive-stepper-motor-with-high-speed-spin-up-circuit