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Modern Wiring – Les Paul

I like to support my customers as much as I can so here is my drawing of Gibson Modern Wiring – Les Paul.

The modern wiring is used in most Les Paul’s and it’s great for players wanting to roll off some treble when the guitar volume is turned down.

The difference between the modern and 50’s wiring is in how the tone capacitor is connected to the volume pot. It’s a very simple modification if you have 50’s wiring and are curious.

Modern Wiring – Les Paul diagram

Les Paul Modern wiring diagram
Modern Wiring

An explanation

Here is a link to my Les Paul 50’s wiring diagram so you can see the difference.

The difference between modern and 50’s wiring is which leg of the volume pot the tone cap (in green) connects to. You will see that the tone pot is also wired differently but that doesn’t actually change anything, its just another way of doing the same thing. So if you simply want to go from modern to 50’s wiring disconnect the capacitor leg from the end lug of the volume pot and attach it to the middle lug – simple.

It’s a very simple modification if you have a soldering iron so its worth experimenting with to find which works best for you.

Remember, if you play with the volume and tones at full it makes no difference if you use modern or 50’s wiring. It’s when you use the volume and tones that things start to happen.

Another thing to remember is that you can actually use both wiring methods on the same guitar. It is possible, for instance, to use 50’s wiring for the neck pickup and modern for the bridge. That way the neck pickup would retain some clarity as you lower the volume.

The bridge pickup (with the modern wiring) looses some high end as the volume is turned down smoothing off the treble. It just depends on what you’re trying to get out of your Les Paul. Neither wiring method is right or wrong.

Then there’s capacitor choice, pot value, coil tap or series/parallel, or even out of phase – the list goes on. I will be writing more blogs to cover all that at some point. For a simple circuit there are a lot of possibilities.

As with all guitar mods I think it is important to use your ears and your musical taste. Try things out and find out for yourself what works best for the sound you are trying to achieve. Plenty of people will tell you that 50’s is best, that

It’s always important to remember that here is no right or wrong, despite what you may read on social media. It’s all just a matter of personal taste. These wiring differences are all subtle too, the place to start is with great pickups.

In this diagram I’ve used my humbucker colour code. I use the same colour code as Seymour Duncan. I felt it was easier that way as there is so much information and diagrams out there for this colour code. If you need to figure out the wiring for a different manufacturer there are conversion charts available on line.

50’s wiring

Here’s my diagram for the 50’s style wiring https://mrglynspickups.com/2022/10/12/50s-wiring/

Here are some demos of my humbuckers https://youtube.com/playlist?list=PLOdXLT6XwMykEOjfDKlY6fBikNmVCBQXB

I plan to draw more useful wiring diagrams in the future so please let me know if there’s anything you’re interested in.

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updated 24 March 2025

Modern Wiring – Les Paul

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Series Parallel switch

You may have heard of Series Parallel wiring in guitars, here’s how to do it.

There are numerous ways to wire a humbucker. The standard way is in series, its the sound we all know, with that pushy lower mid tone.

Some players like to coil tap their humbucker to get the option of a thinner more Fender type tone. That is essentially switching one coil off.

A less well used way to thin the sound is with a series/parallel switch. A humbucker wired in parallel with itself is more single coil like than in standard wiring, there’s less volume drop than coil tapping and it still hum cancels. I much prefer it.

So what is Series/Parallel all about?

The standard way of wiring a humbucker is in series. PAF’s are wired this way and it gives the traditional full sound with plenty of mids and bottom end. Its simply one coil following the other, the end of one coil connected to the beginning of the next.

Wiring a humbucker in parallel is quite a different sound. It’s much more similar to a single coil sound but the pickups is still hum cancelling. There is a drop in volume though not as much as with a coil tap (switching one coil off). And the pickup is still hum cancelling. It’s like taking away the lower mid range push that a series wired humbucker has and being left with more clarity.

This humbucker series parallel diagram shows how to do it with a push/pull switch. With the series parallel switch down and the humbucker is wired in series (normal), pull it up and it’s in parallel. The wiring colour code is for Mr Glyn’s Pickups (I use the same colours as Seymour Duncan).

Series Parallel diagram

Series Parallel switch for guitar pickups humbucker

Not such a hard diagram to follow is it? I’m not sure why this modification isn’t more popular. Maybe it’s a little harder to understand than coil tapping, maybe it’s because its a little more complicated to wire up. I certainly prefer it in my guitars to give an extra tonal option without taking anything away from the original sound.

Another example of 2 pickup coils wired in parallel is a Strat on position 2 and 4 of the switch. That sound is often incorrectly referred to as ‘out of phase’ but it actually is the sound of 2 coils wired in parallel with each other. So think of the chimey clarity a humbucker would have wired that way and that will give you an idea what a series parallel switch might do for you.

As with all guitar mods its worth having a play around and see if it suits you. It certainly works for me.

It would be great if you could subscribe to this blog (below) so you don’t miss out on any other pickup related articles.

I’m going to be posting a few more wiring diagrams in the near future. Keep an eye on this blog or my social media:

Have a look at Mr Glyns Pickups YouTube channel. There are lots of demos and ‘how to’ videos there.

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Mr Glyns Pickups is a small business which means I can communicate with my customers one to one. I’m always happy to discuss your requirements, answer questions and give advice. I want to know about the guitars my pickups are going in, send me pictures, send me recordings.

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Series Parallel switch