
Photo 1 shows the 4PDT switching matrix design for the "up" position, which will put the pickups half out-of-phase.
We've discussed full out-of-phase and half out-of-phase pickup switching. Here's a wiring for those who want it all in one switch.
Hello and welcome back to Mod Garage. After exploring the half out-of-phase pickup option several times in the past, there was a lot of interest, and I received a lot of emails from readers about it. A lot of you asked for a multi-phase switch to have all possible options at the ready and today we'll bring it all together. You asked for it, and the Mod Garage delivers!
Let's start with what we'll need to get out-of-phase or half out-of-phase sounds:
- You will need to engage at least two pickups to get such sounds. A single pickup played by itself will always sound the same, no matter if you play it in phase or out of phase (more about this later). The magic starts when you engage two (or more) pickups with one in phase and the other one out of phase or half out of phase.
- In general, you'll need one switch for each pickup you want to put out of phase. This can be only one switch, like on the middle pickup of a Stratocaster, to cover both in-between switching positions (bridge+middle and neck+middle), or three phasing switches, like on Brian May´s "Red Special," with one switch for each of the three pickups.
My design of a multi-phase switch that we'll cover today can be used to expand already existing out-of-phase switches in a guitar or to design a new wiring of your choice, integrating such a switch. With this switch, you'll be able to cover all three possible phasing options: in phase, out of phase, and half out of phase.
The magic starts when you engage two (or more) pickups with one in phase and the other one out of phase or half out of phase.
All you need for this mod is the switch, plus a capacitor and a resistor for the half out-of-phase option. So, let's start with the switch itself. For this mod you need a 4PDT on-on-on switch, which means a switch with three switching positions (up-middle-down) and a total of 12 lugs, arranged in four independent sections. Such switches are on the border of being exotic, but they're still available. Since every manufacturer uses a slightly different switching matrix for such switches, you'll need to get one with the same switching matrix I used, which is more or less the quasi-standard for it. It's possible to use 4PDT switches with a different switching matrix, but you'd have to adopt the wiring to it. I've provided three photos of the switching matrix and the switch design for each position. Photo 1 shows the "up" position, which will put the pickups half out-of-phase. Photo 2 shows the "middle" position, which will give you the full out-of-phase option. And Photo 3 shows the "down" position, which is just the normal in-phase operation.
Placing such physically large-sized switches on a pickguard or control plate can be a challenge, so you'll have to be creative. There is no way around such a switch when you want this mod because there are no existing push-pull or push-push pots with on-on-on switches. If you can find a 4P3T rotary switch, you can use it to substitute the switch by replacing one of the pots with it. There are also 4PDT slider switches available, but they're physically about the same size, and therefore, not a real alternative.
Photo 2 shows the 4PDT switching matrix design for the "middle" position, which will give you the full out-of-phase option.
Image courtesy of singlecoil.com
Here we go with the wiring of the switch, shown in Fig. 1. With the lever down you have the normal in-phase operation, with the lever up the pickup is half-out-of-phase, and in the middle position you have the full out-of-phase option.
Anyway, there you have it, all in one switch as shown in Fig. 1. On the left side of the switch, you see a capacitor in series with a resistor for the half out-of-phase option. A good average value is using a 0.01 uF capacitor with a 6.2k-ohm resistor in series as an additional serial attenuation of the system, preventing an impedance peak.
When looking at the switch, you'll notice that one switching stage is not populated at all. You might ask: Why don't we use a 3PDT switch for this if we only need three switching stages? This is because of the asymmetrical switching matrix of the 4PDT switches in the middle position (Photo 2) and there's no way around it. If the on-on-on switch had a completely symmetrical switching matrix, then three switching stages would be enough, but such switches aren't available today.
Photo 3 shows the 4PDT switching matrix design "down" position, which is just a normal in-phase option.
Image courtesy of singlecoil.com
In general, you add a controlled degree of reversed phase of the pickup when using the half out-of-phase option, which is great to mimic Stratocaster in-between "quack tones" on a Telecaster, like on the Jerry Donahue Tele models or with the Bill Lawrence Telecaster wiring.
Phase differences are measured in degrees. Totally in-phase sounds have either 0 or 360 degrees of difference, meaning none. Totally out-of-phase sounds have a 180-degree difference. So, half out of phase is either 90 or 270 degrees of difference. That's the reason why you can only achieve a fully out-of-phase effect when using two pickups together with one wired out-of-phase. (When both pickups are wired out of phase, they sound the same as both pickups in phase, because there are still 0 degrees of phase difference between them.) When a signal passes through a capacitor, the voltage leads the current by 90 degrees, so when a pickup's signal gets routed through a capacitor, it shifts the phase by 90 degrees—exactly half of 180 degrees—and therefore half out-of-phase ... in simple terms.
The cap connected to the switch is the phase-shifting cap mentioned above. A 0.01 uF cap is a great starting point, but you may try caps between 0.005 uF (5000 pF) and 0.022 uF. The smaller the cap, the sweeter the sound will be, but this really depends on your particular pickups. I recommend experimentation and fine-tuning to get as close as possible to a Strat's in-between tones.
As for the attenuation resistor, a 6.2k-ohm resistor works pretty well with the 0.01 uF cap and standard single-coil pickups. As a simple guideline, you can follow this rule by choosing and experimenting with this resistor: The higher the value, the more attenuation in the system, the smaller the impedance peak. A good starting point is the DCR of the pickup that's connected to the switch. For example, if your pickup measures a DCR of 6.8k ohms, you should start with a 6.8k-ohm resistor on the switch for a balanced sound and experiment from there. A good option is to use a small trim pot first so you can experiment until you find the value you like best. You can measure the trim pot and solder a fixed resistor with the measured value on the switch, or simply leave the trim pot where it is. A 10k or 15k trim pot is perfect for this.
That's it for this round. In honor of Fender's 75th Anniversary, next month we'll take a deeper look into Fender's history, busting some myths, misunderstandings, and urban legends, while celebrating the man behind the company that started it all: Mr. Clarence Leonidas Fender, or Leo Fender, as the world calls him.
Until then ... keep on modding!
- Mod Garage: “Jimmy Page” Les Paul Wiring - Premier Guitar ›
- Mod Garage: Adding an Out-of-Phase Switch to a Telecaster ... ›
- Phasing Out: How to get out-of-phase sounds from a Stratocaster ... ›
Guest picker Ally Venable
Blues rocker Ally Venable joins PG’s editors to imagine what their dream late-night band would sound like.
Question: What’s your dream late-night show band?
Ally Venable - Guest Picker
By FifthLegend from Eagan, Minnesota, United States of America - Thundercat, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=70617212
A: For my late-night show's house band, I’ve assembled a dream team. This ensemble inspires me with their unparalleled musical talents and diverse backgrounds. Chris Layton’s drumming is unmatched and he will provide a solid foundation. I’ll have Jon Batiste on keys. His creativity and energy is boundless. Eric Gales would be on guitar. I love how emotive his music is, and I strive for that type of connection within my playing as well. Finally, I’d have Thundercat on bass. His playing is infused with jazz and funk sensibilities that would tie the whole sound together in an interesting way.
Obsession: My current obsession is shifting my approach to playing—focusing on connection over applause. Instead of chasing technical perfection or crowd reactions, I’m leaning into the emotional and spiritual side of music. It’s about creating moments that resonate deeply, whether it’s with myself, my bandmates, or the audience.
David Saenger - Reader of the Month
A: I love the idea of supergroups and how each of the players would interact. On guitars I would have Nuno Bettencourt (Extreme) and Isaiah Sharkey. My drum and bass combo would be Stewart Copeland (The Police) and Mohini Dey. On keys and sax, I would have Herbie Hancock and Joshua Redman. My male and female vocalists would be Corey Glover (Living Colour) and Liv Warfield (Prince). All of these players are fantastic improvisers and really know how to put on an entertaining show in any genre.
Bassist Victor Wooten
Obsession: My current obsession has been bass. My 12-year-old daughter started playing electric and upright bass about two years ago, and it’s been a blast working with her. I’ve been really focusing on having a solid pocket, and it’s forced me to get better at reading bass clef. I’m taking her to see Victor Wooten next week. Can’t wait!
Jason Shadrick - Managing Editor
Jason Shadrick on the SNL stage.
A: The natural move would be to go for a high-energy party band decked out with multiple keyboards, horns, and vocalists. I’d go a different route. I’d go for a more rootsy vibe with Blake Mills leading a band consisting of Jay Bellerose on drums, esperanza spalding on bass, Bob Reynolds on saxophones, and a rotating guest each week. They could cover lo-fi Americana, funky open-tuned blues, and so much more.
Obsession: This month is slightly less obsession and more reflection as this will be my last issue as Managing Editor for PG. Over the last 15 years I’ve worked on 182 issues, which is kinda mind-boggling. I’ve been lucky enough to do some incredible things during my time at PG, including walking through the host door at SNL and spending a few minutes with Brian May. Never could have imagined it. I am very grateful.
Nick Millevoi - Senior Editor
A: I’ve long said that joining one of the late night bands would probably be my absolute top dream gig. So, if I were choosing my own late-night band, from any era, I would go no further than getting a chance to sit with Paul Schaffer and the World’s Most Dangerous Band or G.E. Smith-era Saturday Night Live Band.
Obsession: The late guitarist Jef Lee Johnson, who spent time in Schaffer’s band, had a heavy resume that included stars of all genres from Billy Joel to the Roots to McCoy Tyner. I got to see him play some low-key gigs around Philly, and each rearranged my molecules. It’s only now, years after his 2013 death, that I’ve become obsessed with his discography. Though much of his work was as a high-level sideman, his albums show the broad range of this masterful guitarist, whose tone, feel, and phrasing conveyed the instrument’s deepest emotional capabilities.
At its core is GTRS’ upgraded G151 intelligent system, offering 128 onboard effects, MNRS amp and cab sims, and even 17 guitar emulations—exclusive to this model. Everything is controlled via the eye-catching Super Knob, which changes color to match your preset, as well as through the Bluetooth-connectible GTRS app.
GTRS’ W902 features select tonewoods and construction: an alder body, poplar burl top, and a sleek bolt-on 5-piece neck made from roasted flame maple and rosewood, with satin natural finish and a rosewood fingerboard. The fanned fret design features 24 white copper frets and a stainless zero fret. A pair of GTRS Alnico V pickups and an HL-II bridge deliver a resonant tone, made particularly versatile thanks to the 5-way tone switch and tone knob.
The W902 offers a truly innovative choice for tech-savvy guitarists. Its features include a wireless transmitter, OTG recording, an 80-second looper, metronomes, and a drum machine, the app-supported guitar boasts up to 12 hours of playtime on a single charge (9 hours with the wireless transmitter in use).
The W902 is an upgraded version of the original W900 Intelligent Guitar, and the W902 most notably features an upgraded GTRS Intelligent Processor System, the G151, which even offers upgrades over the GTRS SL810's recently announced G150 system. The G151 system comes with a staggering 128 effects pre-installed, along with 10 of both MOOER's in-house MNRS amp and cabinet simulation profiles. Exclusive to the W902, the G151 system even includes 17 guitar simulation effects, allowing guitarists to emulate the tonal resonance of some of their favorite guitars.
To activate and browse through presets within the G151 system, which can be connected via Bluetooth 5.0, guitarists can use the guitar's Super Knob, which lights up in different LED colors depending on which preset is activated. Of course, users are able to get stuck into and edit the effects chains of presets through the GTRS app, enabling them to craft their own favorites through their mobile device. The guitar still functions without the G151 system; the Super Knob just needs to be turned off, and the W902 is usable as a regular electric guitar.
Within the GTRS app, there is even an 80-second looper, 10 metronomes, and 40 drum machine grooves built in, providing users with an all-in-one suite for guitar practice and composition. This is especially the case when combined with the W902's OTG-recording support, enabling on-the-go recording without the need for a hardware recording setup.
The W902 comes bundled with a GTRS Deluxe gig bag, three guitar wrenches, a USB 3.0 cable for charging, and a user manual. The guitar even contains a wireless transmitter and an integrated 4000mAh Li-ion battery, providing up to 12 hours of continuous use (9 hours with the transmitter in use), allowing users to enjoy the G151 system through headphones or an amplifier.
Guitarists who want to experiment further with the W902’s technology can connect the intelligent system to the GTRS GWF4 wireless footswitch, which is ideal for switching between presets in live scenarios when control through a mobile device isn't practical.
GTRS W902 Guitar construction features:
- Alder Body, 5-Piece Selected Roasted Flame Maple and Rosewood Neck with Satin Natural Finish (C-Shape)
- Bolt-on neck, 25-1/2" scale length, with dual action steel truss rod
- Rosewood fingerboard, 12” radius, 24 white copper (0 fret stainless) fanned frets
- Built-in wireless transmitter
- Super Knob, Volume Control Knob, and Tone Knob, 3-way tone-selection switch
- GLB-P1 Li-ion Battery (4000mAh, up to 12 hours of continuous use, 9 hours with the wireless transmitter in use)
- USB port for charging and OTG recording
- GTRS Deluxe gig bag, 3 guitar wrenches
GTRS G151 Intelligent Guitar System features:
- GTRS G151 Intelligent Processing System (and GTRS App)
- 128 effects, 10 MNRS amp (GNR) and cabinet (GIR) simulation models
- 17 guitar simulations
- 80-second looper, 40 drum machine grooves, 10 metronomes
- Bluetooth 5.0 connectivity
- GTRS GWF4 wireless footswitch support (sold separately)
The GTRS W902 is now available worldwide. For more information visit www.gtrs.tech.
Detail of Ted’s 1997 National resonator tricone.
What instruments should you bring to an acoustic performance? These days, with sonic innovations and the shifting definition of just what an acoustic performance is, anything goes.
I believe it was Shakespeare who wrote: “To unplug, or not to unplug, that is the question. Whether ’tis nobler in the mind to suffer the slings and arrows of acoustic purists, or to take thy electric guitar in hand to navigate the sea of solo performing.”
Four-hundred-and-twenty-four years later, many of us still sometimes face the dilemma of good William when it comes to playing solo gigs. In a stripped-down setting, where it’s just us and our songs, do we opt to play an acoustic instrument, which might seem more fitting—or at least more common, in the folksinger/troubadour tradition—or do we bring a comfy electric for accompaniment?
For me, and likely many of you, it depends. If I’m playing one or two songs in a coffeehouse-like atmosphere, I’m likely to bring an acoustic. But if I’m doing a quick solo pop up, say, as a buffer between bands in a rock room, I’m bringing my electric. And when I’m doing a solo concert, where I’ll be stretching out for at least an hour, it’s a hybrid rig. I’ll bring my battered old Guild D25C, a National tricone resonator, and my faithful Zuzu electric with coil-splitting, and likely my gig pedalboard, or at least a digital delay. And each guitar is in a different tuning. Be prepared, as the Boy Scouts motto states. (For the record, I never made it past Webelos.)
My point is, the definition of the “acoustic” or “coffeehouse” performance has changed. Sure, there are still a few Alan Lomax types out there who will complain that an electric guitar or band is too loud, but they are the last vestiges of the folk police. And, well, acoustic guitar amplification is so good these days that I’ve been at shows where each strum of a flattop box has threatened to take my head off. My band Coyote Motel even plays Nashville’s hallowed songwriter room the Bluebird Café as a fully electric five-piece. What’s key, besides a smart, flexible sound engineer, is controlling volume, and with a Cali76 compressor or an MXR Duke of Tone, I can get the drive and sustain I need at a low level.
“My point is, the definition of the ‘acoustic’ or ‘coffeehouse’ performance has changed.”
So, today I think the instruments that are right for “acoustic” gigs are whatever makes you happiest. Left to my own devices, I like my Guild for songs that have a strong basis in folk or country writing, my National for blues and slide, and my electric for whenever I feel like adding a little sonic sauce or showing off a bit, since I have a fluid fingerpicking hand that can add some flash to accompaniment and solos. It’s really a matter of what instrument or instruments make you most comfortable because we should all be happy and comfortable onstage—whether that stage is in an arena or theater, a club or coffeehouse, or a church basement.
At this point, with instruments like Fender’s Acoustasonic line, or piezo-equipped models from Godin, PRS, and others, and the innovative L.R. Baggs AEG-1, it’s worth considering just what exactly makes a guitar acoustic. Is it sound? In which case there’s a wide-open playing field. Or is it a variation on the classic open-bodied instrument that uses a soundhole to move air? And if we arrive at the same end, do the means matter? There is excellent craftsmanship available today throughout the entire guitar spectrum, including foreign-built models, so maybe we can finally put the concerns of Shakespeare to rest and accept that “acoustic” has simply come to mean “low volume.”
Another reason I’m thinking out loud about this is because this is our annual acoustic issue. And so we’re featuring Jason Isbell, on the heels of his solo acoustic album, a piece on how acoustic guitars do their work authored by none other than Lloyd Baggs, and Andy Fairweather Low, whose new solo album—and illustrious career—includes exceptional acoustic performances. If you’re not familiar with his work, and you are, even if you don’t know it, he was the gent sitting next to Clapton for the historic 1992 Unplugged concert—and lots more. There are also reviews of new instruments from Taylor, Martin, and Godin that fit the classic acoustic profile, so dig in, and to heck with the slings and arrows!Ernie Ball, the world’s leading manufacturer of premium guitar strings and accessories, proudly announces the launch of the all-new Earthwood Bell Bronze acoustic guitar strings. Developed in close collaboration with Grammy Award-winning guitarist JohnMayer, Bell Bronze strings are engineered to meet Mayer’s exacting performance standards, offering players a bold new voice for their acoustic guitars.Crafted using a proprietary alloy inspired by the metals traditionally found in bells and cymbals, Earthwood Bell Bronze strings deliver a uniquely rich, full-bodied tone with enhanced clarity, harmonic content, and projection—making them the most sonically complex acoustic strings in the Ernie Ball lineup to date.
“Earthwood Bell Bronze strings are a giant leap forward in tone, playability, and durability. They’re great in any musical setting but really shine when played solo. There’s an orchestral quality to them.” -John Mayer
Product Features:
- Developed in collaboration with John Mayer
- Big, bold sound
- Inspired by alloys used for bells and cymbals
- Increased resonance with improved projection and sustain
- Patent-pending alloy unique to Ernie Ball stringsHow is Bell Bronze different?
- Richer and fuller sound than 80/20 and Phosphor Bronze without sounding dark
- Similar top end to 80/20 Bronze with richer low end than Phosphor Bronze