
With out-of-phase and coil-switching options, a treble-bleed network, and individual volume and tone controls for each pickup, this dual-humbucker’s wiring was ahead of its time when it came out in 1978.
Recently a customer asked me to translate something for him, and it turned out that it was a German description of an electric guitar that I had almost forgotten about: the Peavey T-60.
I must admit that I really like Peavey guitars, and the T-60 is no exception. The guitar and its wiring are so unique that I wanted to show you the circuit and how you can adopt it for your own guitar.
The Peavey T-60 was built from 1978 to 1988 and is a dual-humbucker guitar with a design that was ahead of its time—kind of "Burns meets Stratocaster." It's a polarizing shape: You will either love it or hate it. Personally, I think it's a spacey design and together with the arrow-shaped headstock, the silver retro control knobs with the inlayed "P" for Peavey, the toaster-style pickup covers, and the countless screws holding the pickguard, it looks super cool ... but judge yourself.
The guitar was loaded with two epoxy-potted four-conductor "full-range" humbuckers with a blade design, aka Super Ferrite pickups. They were covered with Rick-style toaster design pickup covers, had standard PAF dimensions, and were designed to sound good as humbuckers and single-coils when in split mode. The T-60 guitar also had a brother: the T-40 bass, with the same wiring but slightly different capacitor values for the treble-bleed network on the volume pots (more on this later).
I haven't seen such a circuit on any other guitar. You can adopt this wiring to any HH guitar as long as both humbuckers have four-conductor wiring and a Les Paul/SG/335-style control layout.
The wiring was really ahead of its time back in 1978, sporting out-of-phase and coil-split options, but in a very special way. Basically, the original wiring is using a 3-way pickup selector switch (in this case a DPDT on-on-on type) for a Les Paul-style switching with both pickups together in parallel in the middle position. Next there is a DPDT on-on switch, serving as an out-of-phase switch for the bridge pickup, and a 250k volume and tone control for each pickup, á la Les Paul but independent from the other pickup's circuit. The volume controls both have a "cap only" treble-bleed network to keep the high-end alive when rolling down the volume. The value for the T-60 guitar was 1000 pF and for the T-40 bass 0.01 uF. Besides this, the wirings are absolutely the same. The tone controls have a 0.033 uF tone cap for the bridge and a 0.022 uF tone cap for the neck pickup.
So far, this is nothing special in the year 2020, but let's take a closer look at the tone controls. Here we find a mixture of a tone blend and a coil blend feature. On one side a capacitor is blended to ground (tone blend) while on the other side one of the coils is blended to ground (coil blend). Since the out-of-phase switch is still in front of the coil blend feature, you can choose, depending on the position of the switch, which of the two coils is blended to ground. Here is the description of the circuit in Peavey's own words from the original manual of the guitar: "Our unique tone circuitry enables dual- or single-coil operation of each pickup independently through the rotation of the pickup tone controls. Rotating the tone controls fully clockwise (position #10) achieves the single-coil mode and produces a greater degree of "highs" from the instrument. Rotating the tone controls counterclockwise to approximately the #7 position brings the second coil into operation for full-range, humbucking tonalities. Further counterclockwise rotation of the tone controls (from position #7 to 0) yield conventional tone-contouring action."
As always, the out-of-phase switch only works when both pickups are engaged. Different from a Les Paul standard wiring, both volume and tone controls are working independent from the other pickup's circuit, so in the middle position with both pickups engaged in parallel, the volume and tone controls only affect their corresponding pickup and not both, interacting with each other.
All this together creates a very flexible circuit with a lot of tonal shades you can dial in. I haven't seen such a circuit on any other guitar. You can adopt this wiring to any HH guitar as long as both humbuckers have four-conductor wiring and a Les Paul/SG/335-style control layout. Before you dive in, here are some points to consider with this wiring and possible mods of this circuit:
- Peavey chooses a "cap only" 1000 pF treble-bleed network for both volume controls. This will work with the original 250k controls and the special humbuckers, but may be adjusted when using other humbuckers and/or values for the controls. For more info about this, please have a look at my March 2019 Mod Garage column "Deep Diving into Treble-Bleed Networks."
- The original wiring uses a 0.033 uF tone cap for the bridge and a 0.022 uF tone cap for the neck pickup. Naturally you can mod these values to your personal likings, e.g. 0.022 uF for the bridge and 0.01 uF for the neck pickup, which will work fine with any vintage PAF-style humbucker. Or maybe you want to convert to a warmth control, which is described in November 2018's "Mod Garage: Swap that Tone Knob for a Warmth Control."
- The Rick-style toaster covers on the original humbuckers may look cool, but will dampen the high-end noticeably because, unlike the similar-looking covers from Gretsch, the metal between the two slits is uninterrupted. Removing the cover will bring back all the high-end. Alternatively, you can cut a piece out of this metal part, so it looks similar to the Gretsch covers, to solve the problem and retain the cool retro appearance. (Remember: breaking eddy currents!) For more info about this, read "Mod Garage: How to Shield Humbucking Pickup Covers" from January 2019. For the original pickups, Peavey recommends a pickup height adjustment of 1/32" (0.8 mm) for the bridge and 3/64" (1.2 mm) for the neck pickup. If you want to use the original pickups, chances are good that you'll find a used pair on eBay or maybe Peavey still has them in stock. The part number for the pickups is 95201100 (one model for bridge and neck).
Fig. 2
courtesy of singlecoil.com
- Peavey used 250k audio pots for the volume and 250k tone pots offering a special "S" curved taper. I'm pretty sure this was owed to the S-taper and the availability of such pots, because usually you would expect a 500k pot here together with humbuckers. Not the best choice, so it's worth using all 500k audio pots or a combination of 250k audio pots for the volume (60:40 audio taper in preference) and 500k for the tone controls, preferably with an S-taper. Standard audio-tapered pots will also work with this wiring, but the crossover point between tone blend and coil blend is more defined with an S-curved taper. Such S-tapered pots are available from Bourns or CTS. Maybe the original 250k pot is still available from Peavey as a spare part: the part number of this pot is 75065005.
Now let's look at the wiring. For visual clarity, we'll start with the volume pot's treble-bleed network shown in Fig 1. It's a single 1000 pF cap soldered between input and output of both volume pots. Silver mica caps do a very great job here.
The entire complex wiring of the Peavey T-60 is shown in Fig. 2. The wiring is shown with the original Peavey pickup color chart and needs to be transferred when using different pickups. You can use a lot of different online resources for this, such as the one on guitarelectronics.com.
That's it. Next month we'll continue with our relic'ing series (catch up now with part 1 and part 2) take care of the metal parts of the tuners. Until then, keep on modding!
[Updated 9/27/21]
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- Mod Garage: Deep Diving into Treble-Bleed Networks - Premier Guitar ›
The series features three distinct models—The Bell,The Dread, and The Parlor—each built to deliver rich, resonant acoustic sound with effortless amplification.
Constructed with solid Sitka spruce tops and solid mahogany back & sides, the Festival Series offers warm, balanced tone with incredible sustain. A Fishman pickup system, paired with hidden volume and tone control knobs inside the sound hole, ensures seamless stage and studio performance.
Grover 16:1 ratio tuners provide superior tuning stability, while D’Addario strings enhance clarity and playability. Each guitar comes with a heavy-padded gig bag, making it a perfect choice for gigging musicians and traveling artists.
Key Features of the Festival Series Guitars:
- Solid Sitka Spruce Top – Provides bright, articulate tone with impressive projection
- Solid Mahogany Back & Sides – Adds warmth and depth for a well-balanced sound
- Fishman Pickup System – Delivers natural, high-fidelity amplified tone
- Hidden Volume & Tone Control Knobs – Discreetly placed inside the sound hole for clean aesthetics
- Grover Tuners (16:1 Ratio) – Ensures precise tuning stability
- D’Addario Strings – Premium strings for enhanced sustain and playability
- Heavy-Padded Gig Bag Included – Provides protection and convenience for musicians on the go
Mooer Prime Minimax M2 Intelligent Pedal boasts 194 effects models, 80 preset slots, MNRS and third-party sample file compatibility, an 80-minute looping module, internal drum machine, high-precision tuner, Bluetooth support, and a rechargeable lithium battery.
Over the last few years, Mooer has released several Prime multi-effects devices, including the Prime P1, P2, S1, and most recently in 2024, the Prime Minimax M1. Excitingly, the company is kicking off 2025 with a brand new addition to the Prime family–the Prime Minimax M2 Intelligent Pedal.
Within this small multi-effects device, a whole lot of functionality is packed in, including an impressive 194 effects models, including overdrive, preamp simulators, cabinet models, delays, reverbs, modulation effects, etc., and more. In typical Mooer style, though, the company took things a step further by offering limitless flexibility through the support of its in-house MNRS sample files, as well as third-party IR sample files. Essentially, this means that users can download additional tonal emulations and effects from the Mooer Cloud and third-party sources to the device, which they can then save across 80 preset slots.
As with some past models in the Prime series, the M2 sports a convenient touchscreen design, facilitating easy browsing through the devices banks of presets. However, guitarists are not limited to interfacing with the pedal in this way, as it also features two footswitches, both of which can be used to switch between presets in each bank. There is even a MIDI jack built into the device, enabling users to connect their MIDI controllers to extend the control functions, and the MOOER F4 wireless footswitch support is also supported. Essentially, these augmentation options facilitate additional footswitches to ensure switching preset tones is always as quick and seamless as possible within any workflow.
While the Prime M2 Intelligent Pedal is primarily designed for effects and tonal simulations, it also comes packed with an array of other useful features. For example, it contains a looping module with a hefty 80-minute capacity, in addition to 10 recording save slots to ensure that any looping creations can be kept for future use in performances. Similar to past looper modules in Mooer's products, users are also free to overdub their recordings and even undo or redo their overdubs, offering a lot of real-time flexibility for creating loop-based musical structures.
As if the addition of a looper wasn’t enough, this feature is also synchronizable with an internal drum machine and metronome, a combination that includes 56 drum grooves and 4 metronome varieties. Ultimately, it’s a reminder that Mooer clearly recognizes and wishes to solve the struggles that musicians have when attempting to produce precise loops while staying in time. Upon commencing recording, the drum machine can produce four initial beats to serve as a count-in cue, and of course, this can be combined with the device's tap-tempo control for dynamic use. Best of all, this feature can also be applied to modulation and delay effects, ensuring that they work perfectly in time with any performance.
Extra features are included to complete this all-in-one pedal, including a high-precision tunerwith fully customizable frequency ranges. Guitarists can even leverage the M2’s built-inBluetooth input support, allowing them to practice, jam, and even produce looped musicalstructures over their favorite backing tracks, band prototypes, and musical pieces.
Perhaps unsurprisingly for existing Mooer product users, the Prime M2 also boasts an impressive variety of audio routing systems. As was previously mentioned, that includes Bluetooth input, as well as industry standards such as dual-channel stereo output, perfect for stereo delay and modulation effects. It also supports headphone output for those who wish to practice in silence, and even OTG recording, which means that guitarists can record their creations directly to their smartphone whilst on the go.
Speaking of on-the-go, Mooer is continuing its recent portable-play focus with the Prime M2Intelligent Pedal, as it is fitted with a built-in rechargeable lithium battery with a battery life of up to 6 hours. Ultimately, this means that even a lack of local power sources won’t get in the way of rehearsals and live performances. Combined with the pedal’s lightweight and small build, it truly is an ideal addition to the pedalboard of any traveling musician.
Overall, the Prime M2 Intelligent Pedal is set to be an impressive new addition to the Prime series. It features augmented functionality when compared to past models, yet still in a minimalist and easy-to-use package, keeping the size small and light yet still packing in footswitches, a touch screen, and other flexible control systems.
Features:
- 194 built-in effect models and tonal emulations
- 80 preset slots for storing downloaded MNRS and third-party sample files
- Compatibility with the MOOER Cloud tone-sharing platform
- Built-in 80-minute looping module
- Record, overdub, pause, delete, and playback functions for looping
- Internal drum machine module, stocked with 56 drum grooves
- 4 unique metronomes
- Synchronization between drum machine and looper
- Convenient count-in cue function support from the metronome
- High-precision and customizable tuner module
- 2 multi-function footswitches
- 1.28-inch touchscreen interface
- LED digital display
- LED charge indicator
- Portable USB/OTG recording
- Direct compatibility with the MOOER prime mobile APP and MOOER Studio desktop software for preset management
- Bluetooth 5.0 audio playback
- 3000mAh integrated lithium battery with up to 6 hours of use time
- DC 5V/2A power supply and charging
- 3 hours charging time
- Low weight of 228g
- Compact, at 74mm (L), 125mm (W), and 49mm (H)
- Sample rate of 44.1kHz
- Bit depth of 24bit
- Compatible with MOOER F4 wireless footswitch
- 3.5mm MIDI port
- Mono TS ¼” input
- Stereo TS ¼” output
- 3.5mm headphone output
- Power switch button
The Prime Minimax M2 Intelligent Pedal will be available from the official distributors or retailersworldwide.
For more information, please visit mooeraudio.com.
Kirk Hammett has partnered with Gibson Publishing to release The Collection: Kirk Hammett, a premium hardcover coffee-table photo book where Kirk tells the stories behind his rare and collectible instruments.
“I am thrilled to announce the launch of The Collection: Kirk Hammett. I’ve worked diligently on this curated collection of vintage and modern guitars for the book. I feel the book captures the rich history and artistry behind each of these unique and rare instruments. Every picture tells a story and thanks to Ross Halfin and his exceptional photography, every picture in this book is worth a million words! This book could not be possible without the help of Gibson, so I’d like to thank them for making my passion for Greeny, and guitars a reality. I hope all of you enjoy this journey as much as I did.”
“It’s exciting the time has come to release The Collection: Kirk Hammett by Gibson,” adds Cesar Gueikian, President and CEO of Gibson. “We have been working on this project with Kirk for years now, and I had the opportunity to work closely with Kirk on the composition of the collection for the book. It was a thrill to put this together and it took a village to get it done! I hope everyone appreciates the work that went into this book and enjoys every story behind the guitars.”
The Collection: Kirk Hammett, Custom Edition is limited to just 300 numbered copies signed by KIRK HAMMETT and comes in a huge 19 x 14.5” (490 x 370mm) presentation box featuring custom artwork and an outstanding case candy package. In addition to the large-format 17 x 12” (432 x 310mm) hardcover version of the book with a stunning lenticular cover, the boxset includes a frameable 16 x 11.6” (407 x 295mm) art print of a Ross Halfin portrait of KIRK HAMMETT signed by both Halfin and the Metallica guitarist. Other case candy includes an Axe Heaven miniature replica of Hammett’s 1979 Gibson Flying V with case and stand, an exclusive pick tin complete with six Dunlop® Kirk Hammett signature Jazz III guitar picks, and a Gibson Publishing Certificate of Authenticity.
Explore The Collection: Kirk Hammett book HERE.
The collection includes Cobalt strings with a Paradigm Core, Tim Henson Signature Classical Strings, and the Tim Henson Signature FretWrap by Gruv Gear.
Engineered for maximum output, clarity, and durability, these strings feature:
- Cobalt with a Paradigm Core (not RPS) for added durability
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- Available individually or as part of the Tim Henson Signature Bundle
Tim Henson Signature Classical Strings
Crafted for dynamic, percussive tonality, these strings pair fluorocarbon trebles with silver-plated copper basses to deliver exceptional response and clarity.
- Gauges: 24, 27, 33, 30, 36, 42
- Available individually or as part of the Tim Henson Signature Bundle
Tim Henson Signature FretWrap by Gruv Gear
An essential string-dampening tool, the Tim Henson Signature FretWrap is designed for cleaner playing by eliminating unwanted overtones and sympathetic vibrations.
- Features Tim Henson’s custom ‘Cherub Logo’ design
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- Ernie Ball collaboration with Gruv Gear
- Available individually or as part of the Tim Henson Signature Bundle
The Ernie Ball Tim Henson Accessory Bundle Kit
For players who want the complete Tim Henson experience, the Ernie Ball Tim HensonSignature Bundle Kit includes:
- Tim Henson Signature Electric Strings (9.5-46)
- Tim Henson Signature Classical Strings (Medium Tension)
- Tim Henson Signature FretWrap by Gruv Gear (Small)
- Tim Henson Signature Cable (Exclusive 10ft white dual-conductor cable, only available in the bundle)
The Tim Henson Signature String & Accessory Collection is available starting today, March 19, 2025, at authorized Ernie Ball dealers worldwide.
For more information, please visit ernieball.com.