Help needed with wiring for a Jaguar Rhythm circuit mod.

kizzer

Joined: Jun 27, 2017
Posts: 12
United Kingdom

Posted on Oct 14 2017 05:58 PM

Hi guys.

I'm looking to modify the Rhythm circuit of my Jaguar so once engaged it puts both pickups in parallel and the roller pots control individual volumes for the Bridge and Neck pickup.

Has anyone tried this? Or know of a wiring diagram for it?

Cheers
Kizzer

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wfoguy

Joined: Dec 11, 2011
Posts: 2122
United States

Posted on Oct 14 2017 07:12 PM

Explain what will be the end result, please? I'm not an expert and curious.

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JakeDobner

Joined: Feb 26, 2006
Posts: 12159
Seattle
5 News Pins

Posted on Oct 14 2017 07:21 PM

I'm am 100% not a wiring expert. But I'm not sure how what you describe will work. I can see it working if the two rollers are "always on" volume control for both pickups.

Might I recommend putting the series down with the three switches? You would move the hi-cut filter up top. You can see that wiring here: https://www.premierguitar.com/ext/resources/images/content/2016_07/Blogs/Sep16_PG_CLM_Mod-Garage_Fig1_FEAT.jpg?1469141924

I do the series thing as well, but I use a 4-way blade in my Jags. I place the hi-pass filter up in the rhythm circuit and ditch the rhythm circuit altogether.

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kizzer

Joined: Jun 27, 2017
Posts: 12
United Kingdom

Posted on Oct 14 2017 07:41 PM

wfoguy wrote:

Explain what will be the end result, please? I'm not an expert and curious.

Hi, love the lead circuit, just never had a use for the rhythm circuit. With the mod instead of having just the Neck pickup with volume and tone I would have the ability to blend both Bridge and Neck pickups with independent volume controls.

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kizzer

Joined: Jun 27, 2017
Posts: 12
United Kingdom

Posted on Oct 14 2017 07:53 PM

JakeDobner wrote:

I'm am 100% not a wiring expert. But I'm not sure how what you describe will work. I can see it working if the two rollers are "always on" volume control for both pickups.

Might I recommend putting the series down with the three switches? You would move the hi-cut filter up top. You can see that wiring here: https://www.premierguitar.com/ext/resources/images/content/2016_07/Blogs/Sep16_PG_CLM_Mod-Garage_Fig1_FEAT.jpg?1469141924

I do the series thing as well, but I use a 4-way blade in my Jags. I place the hi-pass filter up in the rhythm circuit and ditch the rhythm circuit altogether.

Cheers for the info. Its a parallel blend rather than series that I'm after.

I found an old thread here:
https://surfguitar101.com/forums/topic/9859/?page=1

It has a diagram for the same mod for a Jazzmaster/Jaguar. I've sent the guy a message as I'm not sure how it applies to the Jaguar switching.

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JakeDobner

Joined: Feb 26, 2006
Posts: 12159
Seattle
5 News Pins

Posted on Oct 14 2017 09:02 PM

Oh, I gotcha. I always get series/parallel mixed up.

This should be much easier than I previously thought. I've done some really funky wiring to some of my Jags, I was completely not paying attention and thinking about other things.

Alternatively... It should be possible to make the blend with only one roller. Similar to how a Rickenbacker works, or even a Jazz Bass. That would give you a roller and that on/off switch back to do other things with. I would 100% recommend Series wiring in addition to the parallel on a Jag, I just absolutely love it.

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LeeVanCleef

Joined: Oct 05, 2011
Posts: 744
France
12 Map Pins

Posted on Oct 17 2017 06:12 PM

Kizzer, I'm pretty sure it can be done with some basic rewiring and a pot replacement.

I'm completely snowed under at the moment, but give me a few days and I will try to draw you a schematic and/or wiring diagram. I'm no specialist but I think I can do it.

—

Old punks never die... They just become surf rockers.

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kizzer

Joined: Jun 27, 2017
Posts: 12
United Kingdom

Posted on Oct 17 2017 06:21 PM

LeeVanCleef wrote:

Kizzer, I'm pretty sure it can be done with some basic rewiring and a pot replacement.

I'm completely snowed under at the moment, but give me a few days and I will try to draw you a schematic and/or wiring diagram. I'm no specialist but I think I can do it.

Thanks very much mate!

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LeeVanCleef

Joined: Oct 05, 2011
Posts: 744
France
12 Map Pins

Posted on Oct 22 2017 04:05 PM

Okay, I've just spent a few hours thinking and doodling, and unfortunately I hit a snag I hadn't anticipated.

I came up with a way to achieve what you described (replace rhythm circuit tone & volume controls with an individual volume for each pickup, leaving the lead circuit as is). But then I realized that in my circuit both sets of controls would be loading down the output at all times, even when not engaged; I don't know to what extent this would affect the overall tone of the guitar.

Here's the wiring diagram:

There is a possible fix: you'd have to use a 3PDT switch for the rhythm circuit instead of the stock DPDT. That would make it possible to totally isolate whichever circuit (rhythm or lead) is not selected. As far as I know that's what the rhythm circuit switch does in a stock Jag, but to be able to have separate volume controls for each pickup you'd need one more set of terminals (i.e. a 3PDT). The thing is, I don't know if 3PDT sliders are available in the exact same size as Jag switches. A 3PDT mini toggle switch would fit through the slider hole in the upper control plate, but the cavity might require widening, and the toggle lever might get in the way of your playing.

Hope this helps.

—

Old punks never die... They just become surf rockers.

Last edited: Oct 22, 2017 16:15:40

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kizzer

Joined: Jun 27, 2017
Posts: 12
United Kingdom

Posted on Oct 22 2017 07:38 PM

Thanks so much for all your hard work!

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CoraDias

Joined: Mar 15, 2018
Posts: 1

Posted on Mar 15 2018 12:39 PM

Hi...i am a new user here. In my case same modification on my Epiphone Slash LP plus a couple of cheapie P Bass guitars and they now all enjoy the benefit of this inexpensive modification that dramatically improves the overall sound and tone form each of these instruments.

pcb assembly asia

Last edited: Apr 04, 2018 16:50:55

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kizzer Joined: Jun 27, 2017 Posts: 12	Posted on Oct 14 2017 05:58 PM Hi guys. I'm looking to modify the Rhythm circuit of my Jaguar so once engaged it puts both pickups in parallel and the roller pots control individual volumes for the Bridge and Neck pickup. Has anyone tried this? Or know of a wiring diagram for it? Cheers Kizzer Top
wfoguy Joined: Dec 11, 2011 Posts: 2122	Posted on Oct 14 2017 07:12 PM Explain what will be the end result, please? I'm not an expert and curious. Top
JakeDobner Joined: Feb 26, 2006 Posts: 12159 Seattle	Posted on Oct 14 2017 07:21 PM I'm am 100% not a wiring expert. But I'm not sure how what you describe will work. I can see it working if the two rollers are "always on" volume control for both pickups. Might I recommend putting the series down with the three switches? You would move the hi-cut filter up top. You can see that wiring here: https://www.premierguitar.com/ext/resources/images/content/2016_07/Blogs/Sep16_PG_CLM_Mod-Garage_Fig1_FEAT.jpg?1469141924 I do the series thing as well, but I use a 4-way blade in my Jags. I place the hi-pass filter up in the rhythm circuit and ditch the rhythm circuit altogether. Top
kizzer Joined: Jun 27, 2017 Posts: 12	Posted on Oct 14 2017 07:41 PM wfoguy wrote: Explain what will be the end result, please? I'm not an expert and curious. Hi, love the lead circuit, just never had a use for the rhythm circuit. With the mod instead of having just the Neck pickup with volume and tone I would have the ability to blend both Bridge and Neck pickups with independent volume controls. Top
kizzer Joined: Jun 27, 2017 Posts: 12	Posted on Oct 14 2017 07:53 PM JakeDobner wrote: I'm am 100% not a wiring expert. But I'm not sure how what you describe will work. I can see it working if the two rollers are "always on" volume control for both pickups. Might I recommend putting the series down with the three switches? You would move the hi-cut filter up top. You can see that wiring here: https://www.premierguitar.com/ext/resources/images/content/2016_07/Blogs/Sep16_PG_CLM_Mod-Garage_Fig1_FEAT.jpg?1469141924 I do the series thing as well, but I use a 4-way blade in my Jags. I place the hi-pass filter up in the rhythm circuit and ditch the rhythm circuit altogether. Cheers for the info. Its a parallel blend rather than series that I'm after. I found an old thread here: https://surfguitar101.com/forums/topic/9859/?page=1 It has a diagram for the same mod for a Jazzmaster/Jaguar. I've sent the guy a message as I'm not sure how it applies to the Jaguar switching. Top
JakeDobner Joined: Feb 26, 2006 Posts: 12159 Seattle	Posted on Oct 14 2017 09:02 PM Oh, I gotcha. I always get series/parallel mixed up. This should be much easier than I previously thought. I've done some really funky wiring to some of my Jags, I was completely not paying attention and thinking about other things. Alternatively... It should be possible to make the blend with only one roller. Similar to how a Rickenbacker works, or even a Jazz Bass. That would give you a roller and that on/off switch back to do other things with. I would 100% recommend Series wiring in addition to the parallel on a Jag, I just absolutely love it. Top
LeeVanCleef Joined: Oct 05, 2011 Posts: 744 France	Posted on Oct 17 2017 06:12 PM Kizzer, I'm pretty sure it can be done with some basic rewiring and a pot replacement. I'm completely snowed under at the moment, but give me a few days and I will try to draw you a schematic and/or wiring diagram. I'm no specialist but I think I can do it. — Old punks never die... They just become surf rockers. Top
kizzer Joined: Jun 27, 2017 Posts: 12	Posted on Oct 17 2017 06:21 PM LeeVanCleef wrote: Kizzer, I'm pretty sure it can be done with some basic rewiring and a pot replacement. I'm completely snowed under at the moment, but give me a few days and I will try to draw you a schematic and/or wiring diagram. I'm no specialist but I think I can do it. Thanks very much mate! Top
LeeVanCleef Joined: Oct 05, 2011 Posts: 744 France	Posted on Oct 22 2017 04:05 PM Okay, I've just spent a few hours thinking and doodling, and unfortunately I hit a snag I hadn't anticipated. I came up with a way to achieve what you described (replace rhythm circuit tone & volume controls with an individual volume for each pickup, leaving the lead circuit as is). But then I realized that in my circuit both sets of controls would be loading down the output at all times, even when not engaged; I don't know to what extent this would affect the overall tone of the guitar. Here's the wiring diagram: There is a possible fix: you'd have to use a 3PDT switch for the rhythm circuit instead of the stock DPDT. That would make it possible to totally isolate whichever circuit (rhythm or lead) is not selected. As far as I know that's what the rhythm circuit switch does in a stock Jag, but to be able to have separate volume controls for each pickup you'd need one more set of terminals (i.e. a 3PDT). The thing is, I don't know if 3PDT sliders are available in the exact same size as Jag switches. A 3PDT mini toggle switch would fit through the slider hole in the upper control plate, but the cavity might require widening, and the toggle lever might get in the way of your playing. Hope this helps. — Old punks never die... They just become surf rockers. Last edited: Oct 22, 2017 16:15:40 Top
kizzer Joined: Jun 27, 2017 Posts: 12	Posted on Oct 22 2017 07:38 PM Thanks so much for all your hard work! Top
CoraDias Joined: Mar 15, 2018 Posts: 1	Posted on Mar 15 2018 12:39 PM Hi...i am a new user here. In my case same modification on my Epiphone Slash LP plus a couple of cheapie P Bass guitars and they now all enjoy the benefit of this inexpensive modification that dramatically improves the overall sound and tone form each of these instruments. pcb assembly asia Last edited: Apr 04, 2018 16:50:55 Top

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Help needed with wiring for a Jaguar Rhythm circuit mod.