Electronic Bow article
Everything You Need to Know About Electronic Bow
A full explainer on the electronic bow, the handheld device that sustains a guitar string without picking, from how it works to its 1970s origins.
The first time you hear one properly, it doesn't sound like a guitar at all — it sounds like a cello, or a distant horn section, or something that shouldn't be coming out of a fretboard. I've always liked gear that plays tricks like that, so here's a proper look at what it actually is, how it manages the trick, and where it came from.
What Is an Electronic Bow?
An electronic bow — usually known by its trademarked name, the EBow — is a small, battery-powered, handheld device that makes a single guitar string vibrate continuously without being picked. Instead of striking the string, you hold the unit directly over it, and an electromagnetic driver inside excites the string into sustained motion. The manufacturer, Heet Sound, describes it simply as something that replaces the pick in your playing hand.
It's worth being precise here, because people often confuse it with actually bowing a guitar string with a violin bow. That's a mechanical technique, using friction between horsehair and rosin against the string. It does the opposite: no friction, no contact needed at all. It uses electromagnetic induction and feedback to keep the string moving on its own.
How It Actually Works
Inside the housing is a small electromagnetic driver and a feedback circuit. Position it over a string, and the driver's oscillating magnetic field excites the string; the feedback circuit then senses that vibration and reinforces it, keeping the note sustaining for as long as you hold the device in place. Move it toward the bridge or the neck and the tone and response change noticeably.
The official technique notes are worth knowing even if you never plan to own one: avoid letting the drive section actually touch the string, use hammer-ons and snap-offs on the fretting hand to trigger notes quickly, and rest the unit gently against the neighbouring strings for a bit of extra stability. It's normally a monophonic tool — one string at a time — so chords aren't really part of the vocabulary, though moving between strings can build arpeggios and layered drones.
A Brief History
The concept goes back to 1969, when inventor Greg Heet built his first working prototype. A handheld version followed in 1974, and Heet Sound formally introduced the production EBow at the 1976 NAMM show in Chicago. The company later released the PlusEBow in 1998, an updated version of the original design. It's a rare case of a genuinely novel instrument accessory that arrived fully formed and hasn't needed much reinvention since — the basic principle from 1976 is still what you buy today.
Where the Sound Turns Up
Because it produces long, violin-like sustain, feedback-style drones, and brass or woodwind-like textures, it found a natural home in progressive rock, new wave, post-punk and ambient guitar playing through the late 1970s and 1980s. Guitarists such as Steve Hackett, Bill Nelson, Phil Keaggy and Big Country's Stuart Adamson were early and prolific users, and it kept turning up through alternative rock in the decades that followed — Ed O'Brien's textures with Radiohead are a commonly cited example. Blue Öyster Cult's "(Don't Fear) the Reaper" is frequently mentioned in connection with the sound, though as with a lot of gear folklore, individual track credits are worth treating carefully rather than taking as gospel.
If you want the practical side of choosing and using one, our complete buyer's guide to electronic bows covers what actually matters before you spend money, and our beginner's guide walks through your first sessions with one step by step.
Electronic Bow Versus Amplifier Feedback
Both can produce sustained notes, but the mechanism is different in an important way:
| Electronic bow | Amplifier feedback | |
|---|---|---|
| Source | Localised electromagnetic excitation of one string | Speaker output exciting the guitar body and strings through the air |
| Control | Portable, repeatable, precise | Depends on volume, distance and room acoustics |
| Strings involved | Usually just one | Can involve several at once, less predictably |
What It's Compatible With
The device is built and marketed for steel-string electric guitar, and results depend on string gauge, pickup type and position, and how stable you can hold it in place. There isn't clear manufacturer documentation confirming reliable results on acoustic guitars, basses or other stringed instruments, so it's sensible to treat those claims as unproven rather than assume it works equally well everywhere. Guitarist Victoria Shen has experimented with a spinning, multi-string device inspired by the same concept, though that remains an experimental build rather than something you can currently buy.
The Bottom Line
An electronic bow is a genuinely unusual piece of gear: over fifty years old in concept, still made largely the same way, and still capable of sounds nothing else quite replicates on an electric guitar. It won't replace a pick for everyday playing, and it isn't trying to. What it does is open up a specific, sustained, almost vocal register that's kept turning up in recordings from the 1970s right through to today. For the mistakes worth avoiding once you've got one in your hands, our guide to common electronic bow mistakes is worth a read, and if you're comparing your options first, see the best electronic bows for the money.
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