Joe Gwinn's website home page
(always under construction)

Guitar-related information

A collection of items related only in that they involve guitar pickups and guitar electronics.

Maxwell-Wein Impedance Bridge: Used to measure the inductance and AC resistance of a guitar pickup. Click here for the 24 KByte pdf file.

Simple hall-effect magnetometer for measuring the strength of pickup magnets and the like. Click here for the 36 KByte pdf file.

Pickup coil winding geometry and algorithm for determining the number of turns from the dimensions of a coil. Click here for the 48 KByte pdf file.

Schematics of the Extech 380193 LCR Meter.
Click here for sheet one, a 264 KByte pdf and Click here for sheet two, a 688 KByte pdf.

V.E. Legg, "Magnetic measurements at low flux densities using the alternating current bridge", BSTJ, v.15, page 39, January 1939.
Click here for the 3.1 MByte pdf file.

Last updated on 30 August 2009.