Pre-Wired Guitar wiring harness | Thurston Moore Jazzmaster Lead Circuit kit | Right Handed

£67.99

Please use the tabs below to read through the information about this Pre-Wired harness kit. From a run down of what the kit does, to important fitting information and full specs.

Order times

I usually make harnesses to order, due to the variety of spec options that could be chosen across the whole range. The current turnaround time for a harness orders is around 5-7 working days depending on quantity of orders in at the time and your order will be updated accordingly when it is dispatched. This turnaround time doesn't include the transit time. Thanks for your patience whilst I get your harness made!

Model description

It's no secret that I love Jazzmasters. From the comfort of the offset body shape, to the intuitive trem and ultimately, the sound. So this harness was definitely driven by the passion I have for the Jazzmaster design, and for many JM fans a player that will always be a firm favourite, Thurston Moore, is the inspiration of course for this kit.
This particular harness is for a single volume lead circuit only kit. It is designed to be a direct fit for Fender Thurston Moore Jazzmaster signature model guitars, or a retrofit for someone looking to convert their JM to TM specs.
So this harness is wired with no Rhythm Circuit, and is a standalone lead circuit featuring only a volume pot (no tone pot at all). 
The TMJM came equipped from the factory with a 500k audio taper volume pot, so I of course continue on with that spec as standard. If you would prefer an alternative pot spec though just let me know. But as standard, you'll be getting a CTS 450 series 500k audio taper pot. I do however offer it with the choice of split, or solid shaft depending on what control knob you plan on using with it. 

From the factory, the TMJM did not come supplied with a treble bleed on the volume pot, so if you want a true to spec TM pre-wired kit, please choose 'no' to a treble bleed via the drop down menus. But if you personally prefer to have a treble bleed, I have added the option for you and I'll be using a 0.001uf w/ 120kOhm Resistor wired in parallel for this.

Please note - Current main photograph is not of the TMJM pre-wired kit specifically, so don't be alarmed if the photo looks different to the spec kit. This will be updated ASAP.

Product options

Pot shaft type?
Traditionally you would expect to see Solid Shaft pots used in a Telecaster. This is by far the most popular option and will accomodate for grub screw secured control knobs such as the traditional knurled/barrel type control knobs used on Telecasters for decades.
But I also offer the option of split shaft pots, so if you fancy mixing it up a bit and using some alternative style control knobs that require a push-fit then you'll need to choose this option.
For reference CTS solid shaft pots are 6.35mm (1/4") and require a control knob that secures in place via a grub screw fixing.
CTS split shaft pots are 5.95mm w/24 splines and require a control knob that secures in place by push-fit. 

With or without Treble Bleed?
From the factory, the TMJM did not come supplied with a treble bleed on the volume pot, so if you want a true to spec TM pre-wired kit, please choose 'no' to a treble bleed via the drop down menus. But if you personally prefer to have a treble bleed, I have added the option for you.
First up, what does it do? A Treble Bleed kit takes the 'high' treble tone frequencies out of the circuit at the volume pot, and puts them back in the circuit as the signal leaves the volume pot. This means the treble frequencies are prevented from naturally bleeding out of the circuit as your turn your volume pot down. The result is a smoothed out treble and a more uniform tone from 1 to 10. Reducing the treble drop out as the volume pot rolls off. Some guitar players wouldn't be without a treble bleed, and many have never used one on their guitars. Truth is, it is very much personal preference. If you like the idea of retaining treble as you roll your volume pot down, then a treble bleed is for you! As standard I use the .001uF & 120kOhm parallel wired treble bleed mod. 

Bridge ground wire?
I have added this option for those who are perhaps building a guitar from scratch like a partscaster for example or stripping their instrument right back for a full re-build. If this is you, then the pre-soldered length of ground wire may be useful as that will be used as your bridge or tailpiece ground. I will pre-solder a 1ft length of Gavitt 22awg cloth covered wire to the harness for you to use as a new ground wire to your bridge/tailpiece.
If you are fitting this wiring kit to an existing guitar as a replacement to the original wiring, then chances are your guitar already has a bridge ground wire which you can simply just keep and re-use that original wire.

Fitting information

I have intended for my wiring harnesses to be as simple as possible to install to your Jazzmaster, if it's a TM signature Fender then it will be a direct fit, but if it is not a TM signature model and you are retrofitting it to another model of Jazzmaster then there may be some modifications required. In regards to wiring installation though, there are in depth fitting guides, as well as a simple to follow wiring diagram all found here on the site.

The mounting board I make my harnesses on, were taken from measurements of a USA built Fender Thurston Moore Jazzmaster. The centre to centre measurements between components are - 
Centre of 3 way toggle switch to master volume pot - 16cm
Centre of master volume pot to jack socket - 5.7cm
Please note the location of the single volume pot on the TMJM signature, it is not located in the same place as a traditional Jazzmaster so keep this in mind when ordering this kit, 

Can I fit this kit myself?
This ultimately comes down to whether you own the equipment needed to correctly and safely install the kit, or how comfortable you feel working on your own guitar. I do feel that installing a pre-wired guitar harness is do-able for many guitarists but only if the correct tools are used and care is taken to ensure you do not damage the kit, your guitar or yourself! There are detailed installation guides here on my website, as well as simple to follow wiring diagrams all to help make the process as easy as possible and in my experience, these have helped thousands of my customers carry out their own install. But if for any reason you have concerns about fitting the kit yourself which is entirely understandable, then I'm sure you'll agree that it is likely best to have a professional fit the kit and help ensure your purchased kit, and your beloved guitar are both looked after and worked on correctly. 
If you are local to me (Stourbridge, West Midlands) I take on guitar work no problem at all so will certainly be able to help install your Signature Series harness. 

Will the pots/jack fit my pickguard and jack plate?
The components I use in my Signature Series wiring kits are for the most part, USA imperial specification, and will be a direct replacement for a genuine USA or Mexico made Fender Jazzmaster. If you're fitting this harness to different model/spec of Jazzmaster, or a far east built guitar such as a Squier or similar brand, then you may have to widen the holes in the pickguard to accommodate for these imperial measurement pots. The CTS pots and Pure Tone multi contact jack have a mounting thread shaft diameter of 0.369" / 9.38mm so I recommend for ease of install a pickguard and/or jackplate with 0.394" / 10mm pot/jack mounting holes. You can easily widen the holes in the Pickguard too if you would prefer, I recommend doing this safely with a step cutter drill bit. I also offer this as a service so if you would like me to widen your plate for you, do please get in touch and we can organise this additionally.

What control knobs will fit?
The CTS Solid shaft pots have a solid shaft diameter of 0.248" / 6.30mm. You will need control knobs that suit these measurements and secure to the pot via a grub screw on the control knob.
Do not attempt to force fit smaller, metric/import spec control knobs onto the imperial USA spec pots, doing this can damage the pot.

CTS split shaft pots are 5.95mm w/24 splines and require a control knob that secures in place by push-fit. 

If you do require a US spec control knobs, I do carry a selection of popular options in stock and they can be viewed in the Control Knob category on the store.

Which switch tip will fit?
Much like with the control knobs, the Switchcraft pickup selector in this kit is USA spec, with imperial thread sizes. Therefore you need a imperial thread switch toggle tip to suit Switchcraft toggles.

If you do require a US spec switch tip, I do carry a selection of popular options in stock and they can be viewed in the Switch Tips category on the store.

Specs/Parts included

- 1x CTS 450 Series 500k Audio taper pot
- 1x Switchcraft right angle 3 way toggle switch
- 1x Pure Tone multi contact jack socket
- Gavitt USA made cloth covered 22AWG wire
- Soldered using R-Tech Premium Lead-Free (Sn95.5Ag3.9Cu0.6) 22swg Solder wire 
RoHS Compliant

Please note - wiring kit does not include new control knobs/switch tip etc but does include the switch/pot/jack mounting nuts, washers & screws. Please see above spec/item list for full detailed run down of what is included or drop me a message if you aren't 100% sure.

Why these spec parts over others available?
Simply put, component choice has been one of the most important parts of my product development. I have worked on guitars for many years, and built these kits professionally since 2015, and as a result have been able to see and experience working on the majority of components available on the market. In my findings, A/B testing and more, I have found the components I decided on for my Signature Series to be the most reliable, best tolerance and great functioning parts to use to help customers get the most out of their instruments. I use CTS '450' series premium spec pots as they have a tight tolerance, and will consistently provide me with accurate value, as well as very solid build quality. I use trusty 'Mustard' style polyester film 'tone' capacitors as in my opinion they simply can't be beat for great value, solid construction, solid lead-outs, super tight tolerances and reliable tone/function. I would personally much rather use a trusty Mustard for example over something like a paper in oil, as from experience that are so much more reliable to use. This is from carrying out a lot of A/B testing, both tonally, as well as armed with the multi-meter for testing values and actual tolerances, as well as handling them to test construction quality for long lasting reliability in use. I use the brilliant 'Pure Tone' Multi Contact Jack sockets as they are incredibly reliable, due to their additional contact points for both tip and sleeve. I use CRL, Oak and Switchcraft brand switches across the range as these are built very well, with care will last for many years to come and have long since provided me with reliable use professionally. All kits are wired up with quality USA made Gavitt wire, it's great to work with, super consistent gauge and provides me with a very reliable quality item for my kits. I totally understand that with anything guitar, it is subjective, but I have, with an open mind, thoroughly tested a broad variety of components over the years and these have all become the items I trust to use every day. 

Harness FAQ's

I've been proudly making, developing and installing my pre-wired guitar harnesses since the beginning of the Home of Tone back in 2015 (time flies when you're having fun right!). Although I feel I do my best in covering as much information as possible across the various product listings, fitting guides, wiring diagrams and more, I thought it might be helpful to put together an FAQ's page that covers some of the general additional questions I get asked. You can view these Harness FAQ's HERE

'Ground Bug' deal!

Looking forward to installing your new wiring, but a little worried about making the ground connections to the pot casings? First time soldering and hear the horror stories of frying pots, or just simply want to neaten up your installs? Then the awesome 'Ground Bug' will help with any of these concerns, beginner or pro modders alike. The Ground Bug is a pot washer that fits between the pot casing and the pickguard/body and has a number of lugs (much like with the main signal connections on the pot for example) to which you can very easily solder your ground wire connections too. Completely removing the worry and risk of soldering a pot casing, something I know many guitarists complain about having to learn to do. 
I have been stocking Ground Bugs for a while, and they really are the perfect match for a pre-wired harness as they further help you with your installs. So I have set up a 10% off Ground Bug deals when purchased with a Home of Tone Signature Series pre-wired harness. This is an automatic discount code, so all you need to have is a Signature Series kit, and a Ground bug in your cart, and the discount will automatically be applied to the bug for you! Click HERE to view the Ground Bug listing

Do you make custom harnesses?

I'm afraid I do not offer a custom harness service. Only kits developed, tested and listed on my website are the available kits. So no custom schematics etc. If you happen to be local to my office, then I do carry out custom work in house, but in regards to shipped out pre-wired harnesses I do not offer custom kits. I am however happy to use different pot values or cap values within reason if you have a specific requirement that differs to the specs listed above. If this is relevant to yourself then please get in touch to discuss further to ensure the request is possible. 

Please use the tabs below to read through the information about this Pre-Wired harness kit. From a run down of what the kit does, to important fitting information and full specs.

I usually make harnesses to order, due to the variety of spec options that could be chosen across the whole range. The current turnaround time for a harness orders is around 5-7 working days depending on quantity of orders in at the time and your order will be updated accordingly when it is dispatched. This turnaround time doesn't include the transit time. Thanks for your patience whilst I get your harness made!

It's no secret that I love Jazzmasters. From the comfort of the offset body shape, to the intuitive trem and ultimately, the sound. So this harness was definitely driven by the passion I have for the Jazzmaster design, and for many JM fans a player that will always be a firm favourite, Thurston Moore, is the inspiration of course for this kit.
This particular harness is for a single volume lead circuit only kit. It is designed to be a direct fit for Fender Thurston Moore Jazzmaster signature model guitars, or a retrofit for someone looking to convert their JM to TM specs.
So this harness is wired with no Rhythm Circuit, and is a standalone lead circuit featuring only a volume pot (no tone pot at all). 
The TMJM came equipped from the factory with a 500k audio taper volume pot, so I of course continue on with that spec as standard. If you would prefer an alternative pot spec though just let me know. But as standard, you'll be getting a CTS 450 series 500k audio taper pot. I do however offer it with the choice of split, or solid shaft depending on what control knob you plan on using with it. 

From the factory, the TMJM did not come supplied with a treble bleed on the volume pot, so if you want a true to spec TM pre-wired kit, please choose 'no' to a treble bleed via the drop down menus. But if you personally prefer to have a treble bleed, I have added the option for you and I'll be using a 0.001uf w/ 120kOhm Resistor wired in parallel for this.

Please note - Current main photograph is not of the TMJM pre-wired kit specifically, so don't be alarmed if the photo looks different to the spec kit. This will be updated ASAP.

Pot shaft type?
Traditionally you would expect to see Solid Shaft pots used in a Telecaster. This is by far the most popular option and will accomodate for grub screw secured control knobs such as the traditional knurled/barrel type control knobs used on Telecasters for decades.
But I also offer the option of split shaft pots, so if you fancy mixing it up a bit and using some alternative style control knobs that require a push-fit then you'll need to choose this option.
For reference CTS solid shaft pots are 6.35mm (1/4") and require a control knob that secures in place via a grub screw fixing.
CTS split shaft pots are 5.95mm w/24 splines and require a control knob that secures in place by push-fit. 

With or without Treble Bleed?
From the factory, the TMJM did not come supplied with a treble bleed on the volume pot, so if you want a true to spec TM pre-wired kit, please choose 'no' to a treble bleed via the drop down menus. But if you personally prefer to have a treble bleed, I have added the option for you.
First up, what does it do? A Treble Bleed kit takes the 'high' treble tone frequencies out of the circuit at the volume pot, and puts them back in the circuit as the signal leaves the volume pot. This means the treble frequencies are prevented from naturally bleeding out of the circuit as your turn your volume pot down. The result is a smoothed out treble and a more uniform tone from 1 to 10. Reducing the treble drop out as the volume pot rolls off. Some guitar players wouldn't be without a treble bleed, and many have never used one on their guitars. Truth is, it is very much personal preference. If you like the idea of retaining treble as you roll your volume pot down, then a treble bleed is for you! As standard I use the .001uF & 120kOhm parallel wired treble bleed mod. 

Bridge ground wire?
I have added this option for those who are perhaps building a guitar from scratch like a partscaster for example or stripping their instrument right back for a full re-build. If this is you, then the pre-soldered length of ground wire may be useful as that will be used as your bridge or tailpiece ground. I will pre-solder a 1ft length of Gavitt 22awg cloth covered wire to the harness for you to use as a new ground wire to your bridge/tailpiece.
If you are fitting this wiring kit to an existing guitar as a replacement to the original wiring, then chances are your guitar already has a bridge ground wire which you can simply just keep and re-use that original wire.

Fitting information

I have intended for my wiring harnesses to be as simple as possible to install to your Jazzmaster, if it's a TM signature Fender then it will be a direct fit, but if it is not a TM signature model and you are retrofitting it to another model of Jazzmaster then there may be some modifications required. In regards to wiring installation though, there are in depth fitting guides, as well as a simple to follow wiring diagram all found here on the site.

The mounting board I make my harnesses on, were taken from measurements of a USA built Fender Thurston Moore Jazzmaster. The centre to centre measurements between components are - 
Centre of 3 way toggle switch to master volume pot - 16cm
Centre of master volume pot to jack socket - 5.7cm
Please note the location of the single volume pot on the TMJM signature, it is not located in the same place as a traditional Jazzmaster so keep this in mind when ordering this kit, 

Can I fit this kit myself?
This ultimately comes down to whether you own the equipment needed to correctly and safely install the kit, or how comfortable you feel working on your own guitar. I do feel that installing a pre-wired guitar harness is do-able for many guitarists but only if the correct tools are used and care is taken to ensure you do not damage the kit, your guitar or yourself! There are detailed installation guides here on my website, as well as simple to follow wiring diagrams all to help make the process as easy as possible and in my experience, these have helped thousands of my customers carry out their own install. But if for any reason you have concerns about fitting the kit yourself which is entirely understandable, then I'm sure you'll agree that it is likely best to have a professional fit the kit and help ensure your purchased kit, and your beloved guitar are both looked after and worked on correctly. 
If you are local to me (Stourbridge, West Midlands) I take on guitar work no problem at all so will certainly be able to help install your Signature Series harness. 

Will the pots/jack fit my pickguard and jack plate?
The components I use in my Signature Series wiring kits are for the most part, USA imperial specification, and will be a direct replacement for a genuine USA or Mexico made Fender Jazzmaster. If you're fitting this harness to different model/spec of Jazzmaster, or a far east built guitar such as a Squier or similar brand, then you may have to widen the holes in the pickguard to accommodate for these imperial measurement pots. The CTS pots and Pure Tone multi contact jack have a mounting thread shaft diameter of 0.369" / 9.38mm so I recommend for ease of install a pickguard and/or jackplate with 0.394" / 10mm pot/jack mounting holes. You can easily widen the holes in the Pickguard too if you would prefer, I recommend doing this safely with a step cutter drill bit. I also offer this as a service so if you would like me to widen your plate for you, do please get in touch and we can organise this additionally.

What control knobs will fit?
The CTS Solid shaft pots have a solid shaft diameter of 0.248" / 6.30mm. You will need control knobs that suit these measurements and secure to the pot via a grub screw on the control knob.
Do not attempt to force fit smaller, metric/import spec control knobs onto the imperial USA spec pots, doing this can damage the pot.

CTS split shaft pots are 5.95mm w/24 splines and require a control knob that secures in place by push-fit. 

If you do require a US spec control knobs, I do carry a selection of popular options in stock and they can be viewed in the Control Knob category on the store.

Which switch tip will fit?
Much like with the control knobs, the Switchcraft pickup selector in this kit is USA spec, with imperial thread sizes. Therefore you need a imperial thread switch toggle tip to suit Switchcraft toggles.

If you do require a US spec switch tip, I do carry a selection of popular options in stock and they can be viewed in the Switch Tips category on the store.

- 1x CTS 450 Series 500k Audio taper pot
- 1x Switchcraft right angle 3 way toggle switch
- 1x Pure Tone multi contact jack socket
- Gavitt USA made cloth covered 22AWG wire
- Soldered using R-Tech Premium Lead-Free (Sn95.5Ag3.9Cu0.6) 22swg Solder wire 
RoHS Compliant

Please note - wiring kit does not include new control knobs/switch tip etc but does include the switch/pot/jack mounting nuts, washers & screws. Please see above spec/item list for full detailed run down of what is included or drop me a message if you aren't 100% sure.

Why these spec parts over others available?
Simply put, component choice has been one of the most important parts of my product development. I have worked on guitars for many years, and built these kits professionally since 2015, and as a result have been able to see and experience working on the majority of components available on the market. In my findings, A/B testing and more, I have found the components I decided on for my Signature Series to be the most reliable, best tolerance and great functioning parts to use to help customers get the most out of their instruments. I use CTS '450' series premium spec pots as they have a tight tolerance, and will consistently provide me with accurate value, as well as very solid build quality. I use trusty 'Mustard' style polyester film 'tone' capacitors as in my opinion they simply can't be beat for great value, solid construction, solid lead-outs, super tight tolerances and reliable tone/function. I would personally much rather use a trusty Mustard for example over something like a paper in oil, as from experience that are so much more reliable to use. This is from carrying out a lot of A/B testing, both tonally, as well as armed with the multi-meter for testing values and actual tolerances, as well as handling them to test construction quality for long lasting reliability in use. I use the brilliant 'Pure Tone' Multi Contact Jack sockets as they are incredibly reliable, due to their additional contact points for both tip and sleeve. I use CRL, Oak and Switchcraft brand switches across the range as these are built very well, with care will last for many years to come and have long since provided me with reliable use professionally. All kits are wired up with quality USA made Gavitt wire, it's great to work with, super consistent gauge and provides me with a very reliable quality item for my kits. I totally understand that with anything guitar, it is subjective, but I have, with an open mind, thoroughly tested a broad variety of components over the years and these have all become the items I trust to use every day. 

I've been proudly making, developing and installing my pre-wired guitar harnesses since the beginning of the Home of Tone back in 2015 (time flies when you're having fun right!). Although I feel I do my best in covering as much information as possible across the various product listings, fitting guides, wiring diagrams and more, I thought it might be helpful to put together an FAQ's page that covers some of the general additional questions I get asked. You can view these Harness FAQ's HERE

Looking forward to installing your new wiring, but a little worried about making the ground connections to the pot casings? First time soldering and hear the horror stories of frying pots, or just simply want to neaten up your installs? Then the awesome 'Ground Bug' will help with any of these concerns, beginner or pro modders alike. The Ground Bug is a pot washer that fits between the pot casing and the pickguard/body and has a number of lugs (much like with the main signal connections on the pot for example) to which you can very easily solder your ground wire connections too. Completely removing the worry and risk of soldering a pot casing, something I know many guitarists complain about having to learn to do. 
I have been stocking Ground Bugs for a while, and they really are the perfect match for a pre-wired harness as they further help you with your installs. So I have set up a 10% off Ground Bug deals when purchased with a Home of Tone Signature Series pre-wired harness. This is an automatic discount code, so all you need to have is a Signature Series kit, and a Ground bug in your cart, and the discount will automatically be applied to the bug for you! Click HERE to view the Ground Bug listing

I'm afraid I do not offer a custom harness service. Only kits developed, tested and listed on my website are the available kits. So no custom schematics etc. If you happen to be local to my office, then I do carry out custom work in house, but in regards to shipped out pre-wired harnesses I do not offer custom kits. I am however happy to use different pot values or cap values within reason if you have a specific requirement that differs to the specs listed above. If this is relevant to yourself then please get in touch to discuss further to ensure the request is possible.