Les Paul Wiring Harness by JEL- CTS 525k Short Shaft K40Y-9 PIO .015 uF Neck. .022uF Bridge

5 Day Build and Test Time
Minimum Purchase:
1 unit

Jackson Electronic  Luthier ®

525k ohm Ω Short Shaft

Note: Does Not Come with 3way switch

Les Paul Wiring Harness 525k SHORT Shaft K40Y-9 PIO NOS .015uF Neck .022uF Bridge

CTS 525k Short Shaft Audio Pots.

Yellow Varnish Spaghetti Tubing


Harness for the Serious Guitar Player who is a Tone Chaser.
All Materials are Gibson® Historically Accurate
The tone of the K40Y-9 Paper in Oil is responsive and articulate. The quick, highly dynamic attack with even note separation and balance gives a lot of versatility. Tonally there is no peaked Tonal Resonace with Highs Mids and lows evelly balaced.

These caps are not unlike a new speaker and will sound best after being broken in for several hours.

If you don't want to spend the coin on Vintage Spragues, Luxe repro's or Jensen's give these a shot you'll be pleasantly surprised for less money.

Build is a 5% Tolerance Build.

Many Builds are 10% Tolerance and some are even 20% Tolerance


Wired with 20 AWG Bus Wire

Comes with Instructions

Build is a 5% Tolerance Build which produces a Superior Tone   than a 10% build tolerance.

If you’re in doubt ask the Harness Maker what their Tolerances are and can you see their test reports.

Many Builds are 10% Tolerance and some are even 20% Tolerance.


CTS 525k Potentiometers and Capacitors, as well as all materials used, Come With Complete Test Reports and Specifications.

The Capacitors are 0.015uF at the neck and .022uf at the bridge. These are the values made famous by Eric Clapton's Famous "Woman's Tone"

Harness is Tested Using Advanced Audio-metric Software feed to an AC30 HW Vox® Amp.
Many Harnesses are only Tested for Continuity.

All Soldering is done by a Computer Controlled State of the Art Solder Work Station.

Potentiometers are Shielded during Soldering by High Heat Shielding Polyimide Tapes.
Please Note: