Mods for the Rhythm Circuit on a JM?

jimfog

Joined: Jul 22, 2009
Posts: 12

Posted on Aug 18 2009 11:57 AM

Hey,

I think, like a lot of us, I find the Rhythm Circuit on my CP JM pretty useless, as is. It's even too muddy to play jazz on, to my ears.

Has anyone modded theirs, and if so, with what result?

Just curious what options are out there.

Thanks!

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zak

Joined: Sep 24, 2007
Posts: 2728
1 Link Pin

Posted on Aug 18 2009 12:15 PM

This post has been removed by the author.

Last edited: Sep 27, 2009 18:10:55

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supertonesurf

Joined: Apr 28, 2006
Posts: 419
n.y.c.
1 Download Pin

Posted on Aug 18 2009 12:34 PM

i all ways wanted to put two vol controls and remove the tone cap and tone control and use it as a very clean lower vol rthym circuit instead of the mud switch that come with it

—

Facebook pages theSupertones
or @ Timothy C Sullivan

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casey

Joined: May 18, 2006
Posts: 521
2 Security Pins

Posted on Aug 18 2009 03:16 PM

I find the rhythm circuit works OK when I switch to playing rhythm. Doesn't sound great by itself but as a background guitar with someone else playing lead its fine.

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JakeDobner

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

Posted on Aug 18 2009 04:56 PM

jimfog
I think, like a lot of us, I find the Rhythm Circuit on my CP JM pretty useless, as is. It's even too muddy to play jazz on, to my ears.

It is useless on any Jazzmaster or Jag. I've never had reason to mod it. What would I do with it? If I want less volume I just turn down the volume knob.

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DannyW

Joined: May 20, 2008
Posts: 13

Posted on Aug 20 2009 12:15 AM

JakeDobner

jimfog
It is useless on any Jazzmaster or Jag. I've never had reason to mod it. What would I do with it? If I want less volume I just turn down the volume knob.

42 years ago I found it very useful on my Jaguar:

http://video.google.com/videoplay?docid=8395782498535785562&hl=en

Danny W.

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JakeDobner

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

Posted on Aug 20 2009 12:17 AM

Congratulations, you made your guitar sound like there was a blanket thrown over it.

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DannyW

Joined: May 20, 2008
Posts: 13

Posted on Aug 20 2009 08:48 AM

JakeDobner
Congratulations, you made your guitar sound like there was a blanket thrown over it.

I made it sound appropriate to the group and the music.

Danny W.

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Rick_Volcano

Joined: Mar 05, 2006
Posts: 289
Detroit
1 Calendar Pin

Posted on Aug 20 2009 10:58 AM

I have the rhythm controls on my JM wired to the bridge pickup rather than the neck pickup.
I like it much better than the stock wiring (yes, muddy) and find it quite useful.
I can jump from a lead/melody level to a usable rhythm level at the flick of a switch.
Works for me, as they say. YMMV

—

The Volcanos

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zak

Joined: Sep 24, 2007
Posts: 2728
1 Link Pin

Posted on Aug 20 2009 11:16 AM

This post has been removed by the author.

Last edited: Sep 27, 2009 18:11:42

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skeeter

Joined: Feb 27, 2006
Posts: 2063
Virginia, USA
United States

Posted on Aug 20 2009 11:24 AM

zak
There's just enough room in there to fit a 2-knob fuzz circuit and a 9v battery.

However battery access is a lot more hassle-free with a Jaguar since you can unscrew just that one metal plate and get at it. Most fuzzes are pretty easy on the batteries, though.

Hmmmmm.... I like this idea!
Has it ever been done before?

—

Paul
Atomic Mosquitos
Bug music for bug people is here!
Killers from Space

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zak

Joined: Sep 24, 2007
Posts: 2728
1 Link Pin

Posted on Aug 20 2009 11:25 AM

This post has been removed by the author.

Last edited: Sep 27, 2009 18:11:46

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skeeter

Joined: Feb 27, 2006
Posts: 2063
Virginia, USA
United States

Posted on Aug 20 2009 11:31 AM

zak

skeeter
Hmmmmm.... I like this idea!
Has it ever been done before?

I did it on a Jaguar a long time ago. The Jaguar's gone now, I put the rhythm circuit back before I sold it. When I put the fuzz in a pedal enclosure it didn't sound the same as it did inside the guitar, and I've heard people say the same thing about those straight-into-the-jack Jordan Bosstone boxes. Put em in a conventional pedal box an they lose something.

Cool! Well, I may just give it a shot.

—

Paul
Atomic Mosquitos
Bug music for bug people is here!
Killers from Space

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sonni

Joined: Nov 08, 2006
Posts: 80
Vienna, Austria
4 Map Pins

Posted on Nov 09 2010 02:59 PM

hi,
I'd like to mod the JM rhythm circuit: I want to have two volume pots, one for each pickup...
Has anyone an idea how to wire that? I tried to change the seymour duncan schematic for Jazzmaster, but I have only a faint idea of electronics and don't know if that could work or if it is just complete bullshit:image

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DeadRanchHands

Joined: Apr 15, 2008
Posts: 1281
1 Security Pin

Posted on Nov 10 2010 09:01 PM

JakeDobner
Congratulations, you made your guitar sound like there was a blanket thrown over it.

Welcome to the world of jazz guitar.

—

http://www.reverbnation.com/thedeadranchhands

http://www.youtube.com/watch?v=jZEW74mHjQk

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ravcon

Joined: Feb 20, 2010
Posts: 727
Charlotte, NC
United States

Posted on Nov 10 2010 09:35 PM

I like mine. Great for strummed chords.

—

Mike

manfromravcon.com

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MLC

Joined: Jan 14, 2007
Posts: 86
Upstate New York
1 Contributor Pin

Posted on Nov 11 2010 08:57 AM

I "fixed" my Thin Skin JM by coming at it from the other side.

I replaced the 1M pots in the Lead circuit with 250K pots (both audio taper). The results were (1) the tone is a little beefier - without losing any of that beautiful top-end sparkle, and (2) it much more closely matches the tone of the Rhythm circuit now, so I can switch back and forth without such a drastic shift in the sound.

—

Mark

There are no wrong notes, just some questionable choices.

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Ariel

Joined: Aug 29, 2009
Posts: 1556
Israel
Israel

Posted on Nov 11 2010 10:16 AM

I have my JM for only one month or so, a total noob opinion here: I actually like the "drastic" change in tone between the circuits. The "rhythm circuit's" sound is antithesis of most what generally we think of as "modern"-eg. bright, clear, defined... It's unique. I like the concept, but of course it's harder in practice.
Maybe I'll mod it someday, when the novelty wears off...
Meanwhile I found it useful to do the following: crank your amp's treble real high, turn tone on lead circuit down, rock on rhythm circuit as you wish.
Also, the rhythm circuit sounds great with Fuzz. Meaty stuff.

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RobinsonCrusoe

Joined: Aug 08, 2009
Posts: 49
Saarbruecken Germany
1 Calendar Pin

Posted on Nov 13 2010 12:35 PM

This mod allowes you to mix the Bridge and Neck pickup with seperate volume controls if rhythm circuit is switched on.

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Stormtiger

Joined: Dec 12, 2006
Posts: 2683
Ventura, CA
United States

Posted on Jan 10 2011 04:46 PM

How do I bypass the whole rhythm circuit?

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jimfog Joined: Jul 22, 2009 Posts: 12	Posted on Aug 18 2009 11:57 AM Hey, I think, like a lot of us, I find the Rhythm Circuit on my CP JM pretty useless, as is. It's even too muddy to play jazz on, to my ears. Has anyone modded theirs, and if so, with what result? Just curious what options are out there. Thanks! Top
zak Joined: Sep 24, 2007 Posts: 2728	Posted on Aug 18 2009 12:15 PM This post has been removed by the author. Last edited: Sep 27, 2009 18:10:55 Top
supertonesurf Joined: Apr 28, 2006 Posts: 419 n.y.c.	Posted on Aug 18 2009 12:34 PM i all ways wanted to put two vol controls and remove the tone cap and tone control and use it as a very clean lower vol rthym circuit instead of the mud switch that come with it — Facebook pages theSupertones or @ Timothy C Sullivan Top
casey Joined: May 18, 2006 Posts: 521	Posted on Aug 18 2009 03:16 PM I find the rhythm circuit works OK when I switch to playing rhythm. Doesn't sound great by itself but as a background guitar with someone else playing lead its fine. Top
JakeDobner Joined: Feb 26, 2006 Posts: 12159 Seattle	Posted on Aug 18 2009 04:56 PM jimfog I think, like a lot of us, I find the Rhythm Circuit on my CP JM pretty useless, as is. It's even too muddy to play jazz on, to my ears. It is useless on any Jazzmaster or Jag. I've never had reason to mod it. What would I do with it? If I want less volume I just turn down the volume knob. Top
DannyW Joined: May 20, 2008 Posts: 13	Posted on Aug 20 2009 12:15 AM JakeDobner jimfog It is useless on any Jazzmaster or Jag. I've never had reason to mod it. What would I do with it? If I want less volume I just turn down the volume knob. 42 years ago I found it very useful on my Jaguar: http://video.google.com/videoplay?docid=8395782498535785562&hl=en Danny W. Top
JakeDobner Joined: Feb 26, 2006 Posts: 12159 Seattle	Posted on Aug 20 2009 12:17 AM Congratulations, you made your guitar sound like there was a blanket thrown over it. Top
DannyW Joined: May 20, 2008 Posts: 13	Posted on Aug 20 2009 08:48 AM JakeDobner Congratulations, you made your guitar sound like there was a blanket thrown over it. I made it sound appropriate to the group and the music. Danny W. Top
Rick_Volcano Joined: Mar 05, 2006 Posts: 289 Detroit	Posted on Aug 20 2009 10:58 AM I have the rhythm controls on my JM wired to the bridge pickup rather than the neck pickup. I like it much better than the stock wiring (yes, muddy) and find it quite useful. I can jump from a lead/melody level to a usable rhythm level at the flick of a switch. Works for me, as they say. YMMV — The Volcanos Top
zak Joined: Sep 24, 2007 Posts: 2728	Posted on Aug 20 2009 11:16 AM This post has been removed by the author. Last edited: Sep 27, 2009 18:11:42 Top
skeeter Joined: Feb 27, 2006 Posts: 2063 Virginia, USA	Posted on Aug 20 2009 11:24 AM zak There's just enough room in there to fit a 2-knob fuzz circuit and a 9v battery. However battery access is a lot more hassle-free with a Jaguar since you can unscrew just that one metal plate and get at it. Most fuzzes are pretty easy on the batteries, though. Hmmmmm.... I like this idea! Has it ever been done before? — Paul Atomic Mosquitos Bug music for bug people is here! Killers from Space Top
zak Joined: Sep 24, 2007 Posts: 2728	Posted on Aug 20 2009 11:25 AM This post has been removed by the author. Last edited: Sep 27, 2009 18:11:46 Top
skeeter Joined: Feb 27, 2006 Posts: 2063 Virginia, USA	Posted on Aug 20 2009 11:31 AM zak skeeter Hmmmmm.... I like this idea! Has it ever been done before? I did it on a Jaguar a long time ago. The Jaguar's gone now, I put the rhythm circuit back before I sold it. When I put the fuzz in a pedal enclosure it didn't sound the same as it did inside the guitar, and I've heard people say the same thing about those straight-into-the-jack Jordan Bosstone boxes. Put em in a conventional pedal box an they lose something. Cool! Well, I may just give it a shot. — Paul Atomic Mosquitos Bug music for bug people is here! Killers from Space Top
sonni Joined: Nov 08, 2006 Posts: 80 Vienna, Austria	Posted on Nov 09 2010 02:59 PM hi, I'd like to mod the JM rhythm circuit: I want to have two volume pots, one for each pickup... Has anyone an idea how to wire that? I tried to change the seymour duncan schematic for Jazzmaster, but I have only a faint idea of electronics and don't know if that could work or if it is just complete bullshit:image Top
DeadRanchHands Joined: Apr 15, 2008 Posts: 1281	Posted on Nov 10 2010 09:01 PM JakeDobner Congratulations, you made your guitar sound like there was a blanket thrown over it. Welcome to the world of jazz guitar. — http://www.reverbnation.com/thedeadranchhands http://www.youtube.com/watch?v=jZEW74mHjQk Top
ravcon Joined: Feb 20, 2010 Posts: 727 Charlotte, NC	Posted on Nov 10 2010 09:35 PM I like mine. Great for strummed chords. — Mike manfromravcon.com Top
MLC Joined: Jan 14, 2007 Posts: 86 Upstate New York	Posted on Nov 11 2010 08:57 AM I "fixed" my Thin Skin JM by coming at it from the other side. I replaced the 1M pots in the Lead circuit with 250K pots (both audio taper). The results were (1) the tone is a little beefier - without losing any of that beautiful top-end sparkle, and (2) it much more closely matches the tone of the Rhythm circuit now, so I can switch back and forth without such a drastic shift in the sound. — Mark There are no wrong notes, just some questionable choices. Top
Ariel Joined: Aug 29, 2009 Posts: 1556 Israel	Posted on Nov 11 2010 10:16 AM I have my JM for only one month or so, a total noob opinion here: I actually like the "drastic" change in tone between the circuits. The "rhythm circuit's" sound is antithesis of most what generally we think of as "modern"-eg. bright, clear, defined... It's unique. I like the concept, but of course it's harder in practice. Maybe I'll mod it someday, when the novelty wears off... Meanwhile I found it useful to do the following: crank your amp's treble real high, turn tone on lead circuit down, rock on rhythm circuit as you wish. Also, the rhythm circuit sounds great with Fuzz. Meaty stuff. Top
RobinsonCrusoe Joined: Aug 08, 2009 Posts: 49 Saarbruecken Germany	Posted on Nov 13 2010 12:35 PM This mod allowes you to mix the Bridge and Neck pickup with seperate volume controls if rhythm circuit is switched on. Top
Stormtiger Joined: Dec 12, 2006 Posts: 2683 Ventura, CA	Posted on Jan 10 2011 04:46 PM How do I bypass the whole rhythm circuit? Top

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Mods for the Rhythm Circuit on a JM?