Gibson & Epiphone ES-330 Vintage Wiring Harness


We build your Gibson & Epiphone ES-330 Vintage Style Wiring Harness to order using the very best fully tested electrical components.

Includes wiring diagram & installation guide.


Gibson & Epiphone ES-330 Vintage Style Wiring Harness

This pre-wired Gibson & Epiphone ES-330 Vintage Style Wiring Harness is designed for replacing old electrics or upgrading the electronics of imported models or for use on DIY Kits. We take a massive amount of care and attention when putting our Gibson & Epiphone ES-330 Vintage harnesses together. Everything is fully tested before being posted to you.

Read about our Vintage Wiring Harnesses here >. We use our ES-330 vintage wiring harnesses in our workshop for our clients guitar upgrades and also for our Axeify guitar upgrading services, read more here >

Premium 500k CTS Potentiometers x 4. Options of Short, Long and Mini with split shafts and vintage audio taper (fitted with additional nut for height adjustment on the long shaft pot).
Switchcraft Toggle Switch – Choice of switch knob colour is included, Amber, Cream or Chrome.
Switchcraft USA Jack Socket.
Capacitor x 2, Size 0.022uF / Sprague Orange Drop
Gavitt USA Braided Wire.
You are welcome to contact us with your custom requirements.

Long or Short Potentiometers? (Pots)
If you are unsure of the pot length required on your ES-330 guitar, then please order the Long Pots as they will fit all models and can also be adjusted in length due to the extra nut fitted, where if you order the Short Pots they may not be long enough.
Short Pot threaded bushing height: 9.52mm.
Long Pot threaded bushing height: 19.05mm (supplied with 2 nuts for height adjustment).

CTS Mini Potentiometer Option
A top quality Mini CTS Potentiometer that is of equal quality to the larger CTS Potentiometer and offers easier fitting for hollowbody type guitars with restricted access via the F holes.

Volume 1 – Bridge.
Volume 2 – Neck.
Tone 1 – Bridge.
Tone 2 – Neck.

Position 1 – Bridge Pickup.
Position 2 – Bridge & Neck Pickup.
Position 3 – Neck Pickup.

Will this fit my guitar?
Our pre-wired ES-330 Vintage Wiring harness is wired to fit all models including Gibson & Epiphone guitars. If installing into an imported model or a DIY guitar kit you will need to ensure the Potentiometer holes will take CTS pots (approx 10mm). This can be done using a round file or carefully with a 10mm drill.

Centre to centre measurements between components
Centre of Switch to neck volume pot – 48mm.
Centre of neck volume pot to centre of neck tone pot – 66mm.
Centre of neck volume pot to bridge volume pot – 66mm.
Centre of bridge volume pot to bridge tone pot – 66mm.
Centre of neck tone pot to jack socket – 66mm.
Measurements can sometimes vary slightly on some ES-330 models, so we allow plenty of movement in wire lengths between components to allow for a comfortable fit. If your measurements are different from the above, please let us know and we will build your harness to your specifications.

Installation, Documents & Support
Please see our Support Page for wiring diagrams and fitting instructions.

We have made it as simple as possible to install your Gibson & Epiphone ES-330 Vintage Wiring Harness. We also offer full support should you need it. There is a lot of doom and gloom regarding the Gibson & Epiphone ES-330 wiring harness installation, this is very exaggerated. With a simple process it can be achieved quite easy. You won’t need any fancy tools or equipment to install a Gibson & Epiphone ES-330 wiring harness, just a small adjustable spanner/wrench, some wire or fishing line, a pair of long nose pliers or strong pointed tweezers, a soldering iron, and a bit of patience.

Useful Tip 1
I think it would be a good idea to mention at this point if you are thinking of changing your pickups on your Gibson & Epiphone ES-330, this would be the time to do it, as changing pickups will involve the removal of the wiring harness, so best to do everything at the same time.

Useful Tip 2
Because of the construction of a Gibson & Epiphone ES-330, you will be able to have everything soldered up to the harness and strings fitted to allow testing before the wiring harness goes into the body. Its a great time to test your pickup soldering to the Potentiometers.

Order Times
We make everything to order and the turnaround time for a Gibson & Epiphone ES-330 Vintage Wiring Harness is 48 hours.

Gibson & Epiphone ES-330 Wiring Harness, ES-330 Wiring Loom
Gibson & Epiphone ES-330 Wiring Harness
CTS Mini Pots for ES-330 Guitar Wiring Harness
CTS Mini Pots for ES-330 Guitar Wiring Harness
CTS Pot Options for ES-330 Guitar Wiring Harness
CTS Pot Options for ES-330 Guitar Wiring Harness

Gibson / Epiphone ES-330 Vintage Wiring Harness