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50’s wiring

I like to support my customers as much as I can so here is my drawing of Gibson 50’s wiring. Hopefully it will help you fit your new pickups.

The 50’s wiring is great for players wanting to retain some treble when the guitar volume is turned down.

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

I recommend this wiring for my Integrity humbuckers – https://mrglynspickups.com/2020/03/29/integrity-vintage-humbucker-2/

I’ve used my humbucker colour code.

There really is nothing wrong with modern wiring, having your tone darken as you turn down the volume can be very useful in some settings. So try both and see which suits you best.

It seems that all the cool kids and ‘experts’ on the internet are telling us it has to be 50’s or nothing but for anyone with a soldering iron it’s an easy mod and completely reversible so experiment for yourself. You may find you like 50’s for the neck pickup and modern for the bridge.

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

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Mr Glyns ‘Integrity’ vintage voiced humbucker

Inspired by the early Gibson PAF pickups the Integrity-vintage humbucker give the classic full, balanced tone we all love. Asymmetric coils give an open sounding mid range and the Alnico II magnet gives clarity and balance. A rich bottom end, characterful mids and sweet treble make this a pickup set for every situation – Jazz, Blues, Rock, it does it all.

Every pickup manufacturer makes a “Vintage” humbucker based on the Gibson PAF, of course they do – old Gibsons sound so good.

So how come they all sound so different? Well, the simple answer is that PAF’s were all different. I’ve been a full time luthier since 1995, whenever I come across an old humbucker I test the ohms and the gause and have a good listen. They’re all different. My conclusion is that pickup manufacturers have taken the PAF they like and based their own version on that. Old PAF’s vary so much so modern ones do as well.

I like my own version to be clear sounding, have obvious string separation and definition and to keep clarity no matter how much gain. The mids must be strong and woody, this is not a “scooped” pickup. The clean sound needs to be chimey and clear with no mush; through a valve amp I want clarity. When I tickle it I want clean and vocal sounding when it clips. The bridge pickup needs to be well behaved with high gain and clear with enough cut through so the drummer knows you’re there. The neck smooth, clear and articulate. Warm but with none of the boom you get with a more powerful pickup.

I don’t want much do I.

My “Integrity”-vintage humbucker has an Alnico II magnet and I’ve used plain enamel insulated magnet wire with asymmetric coils to open up the mids. The very first pickup I ever made back in 1995 was a PAF style and I’ve been tweaking the recipe ever since. Like all my pickups I’ve used a number of test pilot players in its development as well as gigging it myself. It wasn’t until around 2015 that I settled on this particular design. I did a gig with a set in a PRS SE series only last weekend – sounded great to me.

The full and honest sound of the Integrity-vintage humbucker along with it’s timeless tone inspired the name “Integrity”. https://mrglynspickups.com/

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Gibson T-Top repair

Gibson T-Top pickup repair

I’ve been repairing a few broken old pickups recently so thought I’d share some pictures and thoughts on this classic old Gibson T-Top.

The T-Top is a fairly common pickup on my workbench. Not because there’s and common fault with them but simply there were so many made and they’re all getting quite old now.

The “T-Top” simply refers to the molding on the top of the bobbin. They were Gibson’s standard humbucker from 67/8 until around 1980 replacing the legendary PAF.

Mr Glyns Pickups Gibson t top
Gibson T-Top Mr Glyn’s Pickups

What is a T Top?

There were a few subtle changes from the PAF but enough to make a difference.

Although the bobbins look different the important dimensions were unchanged and they are still made of butyrate making it impractical to wax pot them. Butyrate distorts with heat.

The wire is poly insulated instead of the plain enamel used on PAF’s. Pretty much all T-Tops have a dc resistance of around 7.5 KOhms, neck and bridge the same. The coils are wound symmetrically and are unpotted so beware of squealing with high gain.

The magnets varied, often Alnico III, V or even Ceramic so not all T Tops sound the same.

T Top repair
Gibson T-Top Mr Glyn’s Pickups

This one came to me with a dead coil in need of a re-wind. the magnet is a rough cast Alnico V and from the good coil the finished dc reading I was after was 7.4 KOhms.

After the re-wind I gave it some new cloth tape so it looked the part and it was ready to ROCK.

T-Top repair
Gibson T-Top Mr Glyn’s Pickups

Get in touch if you have any old pickups in need of repair. Although most of my day is spent making new pickups I do enjoy repairing classic old pickups.

www.mrglynspickups.com

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updated 3 April 2023