Some audiophiles believe that cryogenic freezing of their audio equipment somehow improves the sound.  New-age audio inventor and pseudo-scientist Peter Belt (of PWB Electronics) claimed that cryogenic freezing of CDs provides 'friendly', 'relaxing' energy patterns, making them sound better.

Jason Lollar has reissued his book, Basic Pickup Winding and Complete Guide to Making Your Own Pickup Winder. You can order it directly from his website. It is on sale for $60 plus shipping.

Ted Crocker builds guitars and other musician gear, with a rustic design ethic Ted Crocker gear has instant mojo.  Crocker made the Honey-Dripper guitar featured in the blues movie Honeydripper.  The design brief was a handmade guitar neck nailed to a plank with strange wires.

Premier Guitar's Brett Petrusek is on Location in Santa Rosa, CA, where he visits the EMG Inc. pickup factory factory. In the first clip, we get to check out where the molds, housing and electrical boards are constructed for EMG pickups.

Premier Guitar is On Location in Santa Barbara with Seymour Duncan, learning how to make pickups, with Evan Skopp and Seymour Duncan himself.

This is a home made pickup unwinder made by Bill Crozier, after he was unsatisfied with the sound of his Tex Mex pickup. He designed a pickup unwinder to unwind the pickup wire onto a reel, and then used the same setup to scatter rewind the pickup. He mounted the pickup on a rotating Lazy Susan, and the wire take-up spool on a record player.

This is a project by Brad Burt describing how he cloned a Rickenbacker bass neck pickup. The project was initially going to be a simple rewind of a Rickenbacker pickup bought on e-bay, but Brad decided to make a new one and at the same time change the design slightly to improve it.

This video from Searcy String Works shows you how to make a humbucking pickup.

Guitarists sometimes replace their stock pickups in the hope of improving their guitar's tone. This step by step guide shows you how to swap your existing guitar-pickups for new ones. 

Jason Lollar is the  author of the DIY pickup maker's bible "Basic Pickup Winding and Complete Guide to Making Your Own Pickup Winder". This book helped kickstart the custom pickup industry. It has been out of print for a number of years, assuming a mythical status. Secondhand copies have been selling for close to $300.

Paul Rubenstein has suceeded in making a passive hexaphonic pickup that fits into a single coil space. Paul is a guitar player and teacher as well as an inventor (of the alumitar for example). These pickups have a separate coil for each string, allowing you to process each one indidivually.

These are two examples of pickup winders made out of LEGO. They use the motorised Mindstorms , NXT type components to spin the pickup bobbin. I haven't seen any LEGO winders with an automatic travese mechanism yet, but it won't be long before someone builds one.

The first is a pickup unwinder, for despooling a broken pickup, by Scorpion097 .

Experimental Musical Instruments is an online resource for people who want to make unusual musical instruments. They have how-tos on instrument making, as well as books and CDs featuring the work of experimental instrument makers. Also they have back issues of the Experimental Musical Instruments quarterly journal.

GeoMag is a magnetic toy construction system. It connects together using short magnetic rods and little steel balls. Niels Kaagaard noticed the resemblance of the GeoMag rods to the pole pieces in a single coil pickup and proceeded to make a pickup out of them.  When you remove the plastic coating from the GeoMag rod you can see it is a steel bar with neodymium magnets at either end.

The Fender Stratocaster has three single-coil pickups (bridge, middle and neck), selectable by a five position lever switch. The lever switch originally had three positions, but guitarists used to balance the switch between positions to get an out of phase sound, and these extra positions became standard in 1977.