
Photo 1 — The essentials: a low-watt soldering iron, a stand, a small damp sponge, and a roll of “electronic silver solder” like this .020" 60/40 tin/lead rosin flux solder from Kester.
Learn to solder like a pro in this easy-to-follow demonstration.
Given the DIY nature of this issue, we thought it would be appropriate to address good soldering technique. If you’re willing to invest a few bucks in some modest tools and spend a little time practicing the basics, you can learn to wire up guitars, stomp kits, speaker cabinets, and even do some simple amp mods. Once you understand the fundamentals, you can save money and derive a lot of satisfaction from working on your own gear.
The tools.
You’ll want a decent soldering pencil (a small type of soldering iron) rated at least 25 watts, but no more than 60 watts. (Many guitar techs like a 30-watt soldering iron for working on guitars and amps, and a 15-watt iron for working inside stompboxes and on delicate printed circuit boards.) You’ll also want a stand to hold the hot iron when not in use, a damp sponge, and some rosin core solder made for electronic work (Photo 1).
Photo 2 — If your soldering stand doesn’t house a sponge, just put a damp household sponge in a glass or ceramic dish. Other helpful tools: a hemostat and small clamps to hold parts still as you solder them, and a “solder sucker” bulb for removing solder.
You should also have some basic hand tools, such as wire strippers, needle-nose pliers, wire cutters, and something to hold the wire in place while a solder joint cools (Photos 2 and 3).
Photo 3 — In addition to hook-up wire, you’ll want wire strippers. Alternatively, luthier suppliers offer old-school “push-back” wire with a waxed cotton jacket (center) that eliminates the need for stripping off the plastic insulation from the end of the wire. Electrical tape and heat shrink tubing come in handy when you need to protect or insulate your work.
There are tools sold specifically for holding wires and parts, available through an electronics supply house.
Step 1: Prepare the Joint
Photo 4 — Before you attempt to solder a connection, the wire and component must be secured to assure they remain absolutely motionless. Here, a spring-loaded heat-sink clamp holds the wire in place while a vice grip gently clamps the pot shaft.
For every joint, you need to find a way to hold the wire in position without using your hands (Photo 4). Wrap the wire through the solder lug once to make it hold tightly on its own, use tape to hold it in place, lay a pair of pliers on the wire to hold it firmly where you want it, or use a mechanical soldering aid to hold it. Use whatever works, except holding the wire manually. When you make a solder connection and rely on your hands to hold the soldered wire steady while the joint cools, you will fail—no human hands are steady enough to hold anything perfectly still, and you want the wire to remain absolutely motionless while it cools. If there is movement, the result will be internal fractures in the solder.
Step 2: Clean the Tip
Photo 5 — Wipe the hot tip with a damp sponge to keep it clean.
The tip must be cleaned before each and every joint—you can use the damp sponge for this (Photos 5 and 6).
Photo 6 — A clean, dross-free tip looks smooth and shiny.
Solder produces a by-product called dross very, very quickly, and the dross fouls the tip, preventing good heat conduction and introducing waste material into your solder joints.
Step 3: Tin the Tip
Photo 7 — Add a small amount of solder to a freshly cleaned tip just before you solder a connection. When you see this telltale puff of smoke, pull the strand of solder off the tip, shake off any excess, and then move quickly to the joint.
Immediately before you get on the joint with the heat, add fresh solder to the tip of the iron to “tin” it. Simply feed solder directly onto the tip so it’s completely coated (Photo 7). A tinned tip will provide much better heat conduction than a tip that’s clean but not tinned.
Step 4: Remove the Excess Solder
Shake off the excess solder after tinning—you want the tip coated, but not dripping. I have a fire-resistant container beside my soldering bench, and after tinning I tap the barrel of my iron on the edge of the container to knock excess molten solder into it. You can use any fire-resistant container for this, such as a tin can or ceramic bowl, but use care not to start a fire. Because solder melts at such a low temperature the risk of a fire is very low—molten solder is unlikely to ignite even highly flammable materials like paper—but use care anyway!
Step 5: Get on the Joint Right Away
As soon as you’ve removed the excess solder from the tip, get right on the joint. By “joint,” I mean the wire and the solder lug, or the wire and the back of the pot, or whatever it is you’re soldering. Dross will start to form on the tip very quickly, so as soon as the tip is prepared, get to work.
Step 6: Heat the Joint
Photo 8 — Gently press the iron’s hot tip against the joint to heat it before you bring the solder into the equation. The goal is to make the joint itself hot enough to melt the solder.
Heat the joint, not the solder (Photo 8). You want the joint to be hot enough to melt the solder. It’s a given that the iron is hot enough to melt it—just feed a little onto the tip and you’ll see—but you also want the joint itself to be hot enough to do the same.
Photo 9 — While holding the tip against the joint, feed the solder onto the heated joint, not the soldering iron tip. Here the emerging puff of smoke indicates the solder is melting.
If you feed solder onto the joint without it touching the iron (Photo 9), the solder will melt and be attracted right to the joint. You can watch the solder actually wick out onto the surface you’re soldering to—this is what you want.
Step 7: Get off the Joint
As soon as the solder has flowed onto the joint properly, remove the heat from the joint. Most components can stand a fair amount of heat, but some are more susceptible to damage than others, so there’s no need to push your luck. Pots are fairly durable (unless it’s a cheap pot), so it’s highly unlikely you’ll damage one by trying to solder a wire to its back. But again, there’s no need to push your luck, so as soon as you’ve completed the joint, pull the iron away and let the joint cool with the components remaining motionless.
Photo 10 — When the molten solder has flowed into the joint, pull away both the solder and iron. Keep the joint motionless as it cools and don’t blow on it—the moisture in your breath will enter the cooling connection and potentially cause it to fail.
If you’re soldering to a ring-shaped solder lug, then you’ll want to fill it completely with solder (Photo 10). This will maximize the mechanical strength of the joint.
Like most skills, soldering proficiency is acquired through practice. Employing good technique will allow you to become competent all the more quickly, so follow these steps, and you’ll be soldering like a pro in no time. You should probably practice on projects that aren’t expensive or mission critical—you might want to think twice about rewiring your only guitar before that gig with Clapton tonight. But if you keep at it, you’ll be one step closer to being a consummate DIY’er.
Two Ways to Improve Your Soldering Projects
After you master the basics, there are two more skills to add to your bag of tricks: removing old solder and installing heat shrink tubing. There are plenty of occasions where you’ll wish you could remove old solder and re-use a part. For example, you might have rescued a volume or tone pot from a previous mod or project. If it’s a high-quality pot, like those from CTS, why toss it and buy a new replacement when you can put the old one back into service? It’s easy to reverse the soldering process and remove old solder and bits of wire. You simply need a solder removal tool. There are several types, including disposable braided wire that’s designed to wick molten solder away from a joint, and various vacuum pump tools and “solder suckers.” I prefer a simple rubber bulb with a heat-resistant Teflon tip.
Photo 11
Here’s how it works: Stabilize your component, in this case, a pot (Photo 11). See how one lug is filled with solder? Let’s make that go bye-bye. Apply heat to the lug with a freshly cleaned soldering-iron tip.
Photo 12
When you see the solder turn shiny and molten, hold the bulb away from the lug, squeeze and hold the bulb, and then bring its tip to the lug and release the bulb. Fffffft! The molten solder goes up the tip and into the bulb (Photo 12).
Photo 13
Look at that—a nice clean lug ready for its next mission (Photo 13).
Tip:It’s good to recycle pots and parts, but never try to reuse old solder. Clean it off and start fresh.
In case you’re wondering what happens to the old solder, every few months you simply work the tip out of the bulb, shake the collected cold solder beads into the trash, and reinsert the tip into the bulb. Good to go.
When you’re working with wire and electronics, you’ll often encounter instances where you need to insulate a connection from other wires or components. For example, you want to install a favorite old pickup into another guitar. However, the pickup leads have been cut back over the years and now they won’t reach the intended switch or pot, which means it’s time to splice short extensions to the pickup leads. No problem, except if the exposed wires touch each other or other components, they’ll create a short and you’ll hear only silence (or an annoying hum).
Electrical tape will do the job to insulate the splices, but heat shrink tubing—aka heat shrink—offers a more elegant solution. To make this work, you’ll need a heat source. Some folks use a lighter, but I prefer a heat gun because I like to avoid open flame in my workshop. Heat guns aren’t expensive and they get the job done efficiently and safely.
Photo 14
The details: Designed to slide over wire of different gauges, heat shrink comes in various diameters. After you select the right diameter to comfortably slip over your wire, cut off a piece that will straddle the solder splice or joint you plan to cover. The pros suggest a length that’s about three times as long as the exposed section. Use hemostats or a clamp to temporarily hold the ends together while you gauge the length you’ll need to cut (Photo 14).
Photo 15
Next, remove the clamp, slide the heat shrink over one end of the wire (keep it far away from your hot iron) and solder the wires. When the solder has cooled, slip the heat shrink over the new joint, center it, and fire up the heat gun. The tubing will start to immediately contract around the joint (Photo 15). Don’t worry, air from the heat gun doesn’t get hot enough to compromise the solder joint. Once the tubing has completely closed up around the wire, you’re done. The joint now has a tough, new skin to protect it. —Andy Ellis
[Updated 1/13/22]
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An ode, and historical snapshot, to the tone-bar played, many-stringed thing in the room, and its place in the national musical firmament.
Blues, jazz, rock, country, bluegrass, rap.… When it comes to inventing musical genres, the U.S. totally nailed it. But how about inventing instruments?
Googling “American musical instruments” yields three.
• Banjo, which is erroneously listed since Africa is its continent of origin.
• Benjamin Franklin’s Glass Armonica, which was 37 glass bowls mounted horizontally on an iron spindle that was turned by means of a foot pedal. Sound was produced by touching the rims of the bowls with water-moistened fingers. The instrument’s popularity did not last due to the inability to amplify the volume combined with rumors that using the instrument caused both musicians and their listeners to go mad.
• Calliope, which was patented in 1855 by Joshua Stoddard. Often the size of a truck, it produces sound by sending steam through large locomotive-style whistles. Calliopes have no volume or tone control and can be heard for miles.
But Google left out the pedal steel. While there may not be a historical consensus, I was talking to fellow pedal-steel player Dave Maniscalco, and we share the theory that pedal steel is the most American instrument.
Think about it. The United States started as a DIY, let’s-try-anything country. Our culture encourages the endless pursuit of improvement on what’s come before. Curious, whimsical, impractical, explorative—that’s our DNA. And just as our music is always evolving, so are our instruments. Guitar was not invented in the U.S., but one could argue it’s being perfected here, as players from Les Paul to Van Halen kept tweaking the earlier designs, helping this one-time parlor instrument evolve into the awesome rock machine it is today.
Pedal steel evolved from lap steel, which began in Hawaii when a teenage Joseph Kekuku was walking down a road with his guitar in hand and bent over to pick up a railroad spike. When the spike inadvertently brushed the guitar’s neck and his instrument sang, Kekuku knew he had something. He worked out a tuning and technique, and then took his act to the mainland, where it exploded in popularity. Since the 1930s, artists as diverse as Jimmie Rodgers and Louis Armstrong and Pink Floyd have been using steel on their records.“The pedal steel guitar was born out of the curiosity and persistence of problem solvers, on the bandstand and on the workbench.”
Immigrants drove new innovations and opportunities for the steel guitar by amplifying the instrument to help it compete for listeners’ ears as part of louder ensembles. Swiss-American Adolph Rickenbacker, along with George Beauchamp, developed the first electric guitar—the Rickenbacker Electro A-22 lap steel, nicknamed the Frying Pan—and a pair of Slovak-American brothers, John and Rudy Dopyera, added aluminum cones in the body of a more traditional acoustic guitar design and created resophonic axes. The pedal steel guitar was born out of the curiosity and persistence of problem solvers, on the bandstand and on the workbench.
As the 20th century progressed and popular music reflected the more advanced harmonies of big-band jazz, the steel guitar’s tuning evolved from open A to a myriad of others, including E7, C6, and B11. Steel guitarists began playing double-, triple-, and even quadruple-necked guitars so they could incorporate different tunings.
In Indianapolis, the Harlan Brothers came up with an elegant solution to multiple tunings when they developed their Multi-Kord steel guitar, which used pedals to change the tuning of the instrument’s open strings to create chords that were previously not possible, earning a U.S. patent on August 21, 1947. In California, equipped with knowledge from building motorcycles, Paul Bigsby revolutionized the instrument with his Bigsby steel guitars. It was on one of these guitars that, in early 1954, Bud Isaacs sustained a chord and then pushed a pedal down to bend his strings up in pitch for the intro of Webb Pierce’s “Slowly.” This I–IV movement became synonymous with the pedal-steel guitar and provided a template for the role of the pedal steel in country music. Across town, church musicians in the congregation of the House of God Keith Dominion were already using the pedal steel guitar in Pentecostal services that transcended the homogeneity of Nashville’s country and Western clichés.
Pedal steels are most commonly tuned in an E9 (low to high: B–D–E–F#–G#–B–E–G#–D#–F#), which can be disorienting, with its own idiosyncratic logic containing both a b7 and major 7. It’s difficult to learn compared to other string instruments tuned to regular intervals, such as fourths and fifths, or an open chord.
Dave Maniscalco puts it like this: “The more time one sits behind it and assimilates its quirks and peculiarities, the more obvious it becomes that much like the country that birthed it, the pedal steel is better because of its contradictions. An amalgamation of wood and metal, doubling as both a musical instrument and mechanical device, the pedal steel is often complicated, confusing, and messy. Despite these contradictions, the pedal-steel guitar is a far more interesting and affecting because of its disparate influences and its complex journey to becoming America’s quintessential musical instrument.”The author dials in one of his 20-watt Sonzera amps, with an extension cabinet.
Knowing how guitar amplifiers were developed and have evolved is important to understanding why they sound the way they do when you’re plugged in.
Let’s talk about guitar amp history. I think it’s important for guitar players to have a general overview of amplifiers, so the sound makes more sense when they plug in. As far as I can figure out, guitar amps originally came from radios—although I’ve never had the opportunity to interview the inventors of the original amps. Early tube amps looked like radio boxes, and once there was an AM signal, it needed to be amplified through a speaker so you could hear it. I’m reasonably certain that other people know more about this than I do.
For me, the story of guitar amps picks up with early Fenders and Marshalls. If you look at the schematics, amplifier input, and tone control layout of an early tweed Fender Bassman, it’s clear that’s where the original Marshall JTM45 amps came from. Also, I’ve heard secondhand that the early Marshall cabinets were 8x12s, and the roadies requested that Marshall cut them in half so they became 4x12s. Similarly, 8x10 SVT cabinets were cut in half to make the now-industry-standard 4x10 bass cabinets. Our amp designer Doug Sewell and I understand that, for the early Fender amps we love, the design directed the guitar signal into half a tube, into a tone stack, into another half a tube, and the reverb would join it with another half a tube, and then there would be a phase splitter and output tubes and a transformer. (All 12AX7 tubes are really two tubes in one, so when I say a half-tube, I’m saying we’re using only the first half.) The tone stack and layout of these amps is an industry standard and have a beautiful, clean way of removing low midrange to clear up the sound of the guitar. I believe all but the first Marshalls came from a high-powered tweed Twin preamp (which was a 80-watt combo amp) and a Bassman power amp. The schematic was a little different. It was one half-tube into a full-tube cathode follower, into a more midrange-y tone stack, into the phase splitter and power tubes and output transformer. Both of these circuits have different kinds of sounds. What’s interesting is Marshall kept modifying their amps for less bass, more high midrange and treble, and more gain. In addition, master volume controls started being added by Fender and Marshall around 1976. The goal was to give more gain at less volume. Understanding these circuits has been a lifelong event for Doug and me.
Then, another designer came along by the name of Alexander Dumble. He modified the tone stack in Fender amps so you could get more bass and a different kind of midrange. Then, after the preamp, he put in a distortion circuit in a switchable in and out “loop.” In this arrangement, the distortion was like putting a distortion pedal in a loop after the tone controls. In a Fender amp, most of the distortion comes from the output section, so turning the tone controls changes the sound of the guitar, not the distortion. In a Marshall, the distortion comes before the tone controls, so when you turn the tone controls, the distortion changes. The way these amps compress and add harmonics as you turn up the gain is the game. All of these designs have real merit and are the basis of our modern tube–and then modeling—amplifiers.
Everything in these amps makes a difference. The circuits, the capacitor values and types, the resistor values and types, the power and output transformers, and the power supplies—including all those capacitor values and capacitor manufacturers.
I give you this truncated, general history to let you know that the amp business is just as complicated as the guitar business. I didn’t even mention the speakers or speaker cabinets and the artform behind those. But what’s most important is: When you plug into the amp, do you like it? And how much do you like it? Most guitar players have not played through a real Dumble or even a real blackface Deluxe Reverb or a 1966 Marshall plexi head. In a way, you’re trusting the amp designers to understand all the highly complex variations from this history, and then make a product that you love playing through. It’s daunting, but I love it. There is a complicated, deep, and rich history that has influenced and shaped how amps are made today.
Lenny Kravitz’s lead-guitar maestro shares how his scorching hit solo came together.
Hold onto your hats—Shred With Shifty is back! This time, Chris Shiflett sits down with fellow west coaster Craig Ross, who calls in from Madrid equipped with a lawsuit-era Ibanez 2393. The two buddies kick things off commiserating over an increasingly common tragedy for guitarists: losing precious gear in natural disasters. The takeaway? Don’t leave your gear in storage! Take it on the road!
Ross started out in the Los Angeles band Broken Homes, influenced by Chuck Berry, Buddy Holly, and the Beatles, but his big break came when he auditioned for Lenny Kravitz. Kravitz phoned him up the next day to tell him to be at rehearsal that evening. In 1993, they cut one of their biggest hits ever, “Are You Gonna Go My Way?” Ross explains that it came together from a loose, improvisatory jam in the studio—testament to the magic that can be found off-leash during studio time.
Ross recalls his rig for recording the solo, which consisted of just two items: Kravitz’s goldtop Les Paul and a tiny Gibson combo. (No fuzz or drive pedals, sorry Chris.) As Ross remembers, he was going for a Cream-era Clapton sound with the solo, which jumps between pentatonic and pentatonic major scales.
Tune in to learn how he frets and plays the song’s blistering lead bits, plus learn about what amps Ross is leaning on these days.
If you’re able to help, here are some charities aimed at assisting musicians affected by the fires in L.A:
https://guitarcenterfoundation.org
https://www.cciarts.org/relief.html
https://www.musiciansfoundation.org
https://fireaidla.org
https://www.musicares.org
https://www.sweetrelief.org
Credits
Producer: Jason Shadrick
Executive Producers: Brady Sadler and Jake Brennan for Double Elvis
Engineering Support by Matt Tahaney and Matt Beaudion
Video Editor: Addison Sauvan
Graphic Design: Megan Pralle
Special thanks to Chris Peterson, Greg Nacron, and the entire Volume.com crew.
Tobias bass guitars, beloved by bass players for nearly half a century, are back with the all-new Tobias Original Collection.
Built for unrivaled articulation, low-end punch, and exceptional ergonomics, the all-new Tobias Original Collection comprises an array of six four and five-string bass models all offered in both right and left-handed orientations. The Tobias range features Classic, Killer B, and Growler models, and each is equipped with high-quality hardware from Babicz and Gotoh, active electronics from Bartolini, and the iconic Tobias asymmetrical neck design. Crafted from the finest tonewoods, Tobias Original Collection bass guitars are now available worldwide on Gibson.com, at the Gibson Garage locations, and at authorized Gibson dealers.
The bass world has been clamoring for the return of the authentic, high-end Tobias basses, and now, Tobias has returned. Combining the look and tone of the finest exotic tonewoods, such as quilted maple, royal paulownia, purpleheart, sapele, walnut, ebony, and wenge, with the feel of the famous Tobias Asym asymmetrical neck and the eye-catching shapes of the perfectly balanced contoured bodies, Tobias basses are attractive in look and exceptional in playing feel. However, their sonic versatility is what makes them so well suited to the needs of modern bassists. The superior tone from the exotic hardwoods, premium hardware, and active Bartolini® pickups and preamps results in basses with the tonal flexibility that today’s players require. Don’t settle for less than a bass that delivers everything you want and need –the look, the feel, and the sound, Tobias.
“I’m thrilled to release Tobias basses, emphasizing the use of exotic woods, ergonomics, and authenticity to the original Tobias basses,” says Aljon Go, Product Development Manager for Tobias, Epiphone, and Kramer. “This revival is a dream come true, blending modern craftsmanship with the timeless essence of Tobias.”
“It’s amazing to see this icon of the bass world return,” adds Andrew Ladner, Brand Manager for Epiphone and Kramer. “These models are truly a bass player’s bass, and true to the DNA that makes Tobias world-class—the ace up the sleeve of bass players around the globe since 1978. Today’s players can find that unique voice and feel that only Tobias can offer.”
For more information, please visit gibson.com.