It’s a very nice build that’s designed to be as functional as commercial pickup winders. Check out a video of [Pete]’s coil winder in action after the break.

"In electric guitars, the vibration of a magnetized string generates an electric current in the pickup coil," said Yudasaka. "This current is very weak, but by winding the coil thousands of times ...

lacking a ferrite core for testing, [Sandeep] used a plywood ring as a stand-in, but the results are satisfying enough to make any manual coil-winder envious.